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Postharvest diseases of mangoes in Fiji N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2024-03-18 Mereia Fong Lomavatu, Lindy M. Coates, Anthony W. Cooke, Roger W. Mitchell, Steven J. R. Underhill
Despite considerable research globally on postharvest diseases of mango, virtually no work has been done to determine the occurrence of these diseases and their causal agents in Fiji. This study is...
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Differences in dry matter production and grain yield of maize (Zea mays L.) cultivars with contrasting nitrogen efficiency N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2024-03-07 Xingying Chai, Yun Ren, Lin Shi, Xixi Dong, Shuqin Bao, Qiang Li
We aimed to investigate the differences in dry matter accumulation (DMA), distribution, remobilisation, and yield of maize cultivars with contrasting nitrogen efficiency responses to nitrogen appli...
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Morphological, biochemical and sensory analysis of selected Actinidia callosa var. strigillosa female accessions from the existing wild populations in North Sikkim, India N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2024-03-03 Abhilash Padhan, Dinesh Singh Thakur
An analysis of wild kiwifruit (Actinidia callosa var. strigillosa) fruit samples from North Sikkim district of Sikkim state of Northeast India resulted in the identification of six promising female...
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Enhancement of tomato hedonic quality through fertiliser supplementation with a biostimulant complex comprising molasses, Aloe vera extract and fish-hydrolysate N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2024-02-21 Kimber Wise, Jamie Selby-Pham
Tomato (Solanum lycopersicum) is a popular fruit, grown worldwide for its culinary usages in fresh, processed and cooked foods. Additionally, consumption of tomato fruit is associated with health b...
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Yield performance of virus free sweetpotato (Ipomoea batatas) cultivars in the highlands of Papua New Guinea N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2024-02-21 Christian Bugajim, Karli Groves, Craig William Leslie Henderson, Philip Brown
Sweetpotato (Ipomoea batatas (L.) Lam.) is the dominant staple food crop in the Highlands Provinces in Papua New Guinea (PNG), but productivity is constrained by pests and diseases including viral ...
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Non-destructive firmness assessment of ‘SunGold’ kiwifruit a three-year study N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2024-02-14 Talon Sneddon, Sebastian Rivera, Mo Li, Julian Heyes, Andrew East
Kiwifruit (Actinidia chinensis var. chinensis) firmness is routinely measured in a destructive manner for decision-making purposes. Thus, a population’s quality is inferred by measuring a sample fr...
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Monitoring multiyear individual tree flowering and yield reveals high variation among ‘Pinkerton’ avocado trees N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2024-02-12 Lior Rubinovich, Carmit Sofer-Arad, Simon Chernoivanov, Nitzan Szenes, Michael Noy
Most avocado cv. Pinkerton scions in Israel are grafted on seedling rootstocks, resulting in unstable yields. The objective of this study was to evaluate tree multiyear yield variation among ‘Pinke...
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Impact of boron fertilisation on soybean grain yield as affected by associated physiological factors N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2024-01-29 Igor Libório Freitas, Gelza Carliane Marques Teixeira, Cid Naudi Silva Campos, Larissa Pereira Ribeiro Teodoro, Dágila Melo Rodrigues, Rita de Cássia Félix Alvarez, Renato de Mello Prado, Paulo Eduardo Teodoro
High soybean yields generally requires fields to have an adequate supply of boron (B). However, there remains uncertainty around how different cultivars might respond to differing levels of availab...
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Alleviation of lead stress in sunflower (Helianthus annuus L.) by growth-promoting rhizobacterium and neem cake N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2024-01-29 Nawal Gul Shaikh, Afshan Rahman, Mehwish Sadiq, Ehteshamul-Haque Syed, Zafar Iqbal Shams
Lead causes toxicity and affects plant growth by disturbing photosynthesis and the functions of enzymes. Its removal from the soil is a challenging issue. The present study investigates the efficac...
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The impact of PEG-induced drought stress on early vigour traits of bread wheat N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2024-01-24 Milica Blažić, Dejan Dodig, Vesna Kandić, Gordana Branković, Tomislav Živanović
A total of 11 genotypes from the collection of 101 bread wheat genotypes, with desirable traits in terms of increased tolerance to drought, were chosen for parents and eight crosses were performed....
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Foliar application of cyanobacterial formulations stimulates plant growth and fruit quality in tomato under protected cultivation N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2024-01-24 Akanksha Bhardwaj, Radha Prasanna, Nallapareddy Bavana, Venkatesh Kokila, Ravi Mourthy Nivedha, Shalini Gaur Rudra, Awani Kumar Singh, Yashbir Singh Shivay
Cyanobacterial biofertilizers enhance plant and soil productivity across crops, through soil-seed application at the field level; however, their use as foliar treatment is less investigated. This s...
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Understanding the cocoa genetic resources in the Pacific to assist producers to supply the growing craft market N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-12-18 Natalie L. Dillon, Dapeng Zhang, Lars Nauheimer, Elison Toramo, Paitia Nagalevu, Marie-Vianney Melteras, Sandrine Wallez, Kuinimeri Finau, Sefanaia Nakidakida, Petelo Lepou, Yan Diczbalis
The Pacific countries of Fiji, Samoa, Solomon Islands, and Vanuatu account for less than 2% of the world’s cacao dry bean production. To capitalise on the rapidly expanding origin craft cocoa marke...
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Brief characterisation of Fe chlorosis in chia (Salvia hispanica L.) plants grown in nutrient solution N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-11-26 João Vieira, Luna Džidić-Uzelac, Izabela Thais dos Santos, Marco Patrício, Florinda Gama, Teresa Saavedra, Pedro José Correia, Maribela Pestana
Chia (Salvia hispanica L.) plant is a well-known plant due to the nutraceutical value of its seeds. The aim of this preliminary study was to assess the response of Chia plants to Fe deficiency. Chi...
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Cloning and expression analysis of Mildew Locus O (MLO) genes related to powdery mildew resistance in Vitis pseudoreticulata, and functional characterisation of VpMLO13 N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-11-16 Congbo Huang, Yanqing Wang, Xiaoying Zhang, Chaohong Zhang
In many plants, Mildew Locus O (MLO) genes facilitate infection by pathogens, including Erysiphe necator, the causative agent of powdery mildew (PM) in grapevines. The function of VvMLOs in Vitis v...
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Assessment of coconut palm damage caused by coconut rhinoceros beetle, Oryctes rhinoceros (Coleoptera: Scarabaeidae) N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-11-13 Sarah Mansfield, Balanama Asigau, Chikako van Koten, Sulav Paudel, Mike Bowie, Trevor A. Jackson, Sean D. G. Marshall
Coconut production in the Pacific Islands is threatened by coconut rhinoceros beetle (CRB). Distinctive feeding damage caused by adults is often the first indicator of CRB activity in a new locatio...
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Plant health clinics in the Pacific region and the role of regional universities N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-11-13 Mereia Fong-Lomavatu, Kaliova Ravuiwasa, Lilly Sar, Robert Geno, Alois Ndrewou, Lawrence Atu, Ricardo Matapaza, Michael J. Furlong, Grahame Jackson, Caroline Smith
Plant protection is increasingly problematic in a climate-challenged world where the need for food security is increasingly urgent. Plant Health Clinics (PHCs) are an effective way of improving the...
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Enhancement of capsicum (Capsicum annuum L.) functional food value through nutrient supplementation with a biostimulant complex comprising triacontanol, phosphate, and potassium N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-11-12 Kimber Wise, Jamie Selby-Pham, Tomer Simovich, Harsharn Gill
Capsicum (Capsicum annuum L.) is a popular fruit (culinary vegetable) which is consumed for its flavour and functional food potential, associated with the abundance of antioxidant phytochemicals pr...
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Biostimulant application practices in Australian urban forestry N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-09-05 Ariningsun Cinantya, Anthony Manea, Alessandro Ossola, Michelle R. Leishman
ABSTRACT To enhance urban greening outcomes, nursery and urban forest practitioners can use biostimulants to improve plant performance. However, to date, little is known about their actual effectiveness in enhancing urban greening outcomes. This study aimed to gain insight into the use of biostimulants in urban forestry in Australia. To do this, the authors distributed a questionnaire to urban forestry
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Physiological response of new citrus rootstocks under the effect of lime induced iron chlorosis stress conditions N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-08-16 Juan M. Arjona-López, Lidia Aparicio-Durán, Frederick G. Gmitter Jr., Rocío Calero-Velázquez, Jude W. Grosser, Estefanía Romero-Rodríguez, Aurea Hervalejo, Francisco J. Arenas-Arenas
ABSTRACT Citrus orchards are highly affected by iron chlorosis in Mediterranean Basin, which is the second-highest producing region worldwide. In addition, citrus orchards from the Mediterranean Basin are exposed to emerging diseases, such as Huanglongbing, the most devastating citrus disease worldwide. Consequently, citrus rootstock can serve as an interesting tool to reduce crop losses caused by
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Correction N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-07-20
Published in New Zealand Journal of Crop and Horticultural Science (Ahead of Print, 2023)
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Genotype-environment interaction in maize hybrids: a multivariate relationship between yield components, morphological variables and disease tolerance N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-07-12 Matheus de Freitas Souza, Silvio Vasconcelos de Paiva Filho, Victor Hugo Custodio Policarpo, Guilherme Braga Pereira Braz, Gustavo André Simon, Eduardo Lima do Carmo, Antônio Jussiê Solino
ABSTRACT Knowledge of phenotypical variables, yield and susceptibility to diseases may clarify why some hybrids are more productive than others. In this study, we evaluated the stability and responsiveness of genotype-environment interactions on phenological variables, yield components and susceptibility to diseases of maize hybrids. Experiments were conducted in 5 regions in the Brazilian Midwest
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Insect biological control of the tomato-potato psyllid Bactericera cockerelli, a review N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-07-02 Emiliano R. Veronesi, Christopher J. Thompson, Stephen L. Goldson
ABSTRACT The tomato-potato psyllid (TPP) Bactericera cockerelli is a polyphagous herbivore and a renowned pest of solanaceous crops found in America and the Pacific region. Over the last fifteen years, several strategies have been tested worldwide to successfully manage this species, but these have been mostly unsuccessful. While IPM (Integrated Pest Management) programs for the management of TPP remain
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Differential olfactory responses associated with host plant shift by the fruit-piercing moth, Eudocima phalonia, in the Pacific islands N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-06-22 Flore Mas, Rachael Horner, Lee-anne Manning, Aimee Harper, Sam Brierley, Stefano DeFaveri, Lise Leroy, Christian Mille
ABSTRACT The fruit-piercing moth (FPM) Eudocima phalonia is widely present in the tropics, causing major damages to the citrus industry. In its ancestral distribution range, e.g. Australia, FPM develops on vines from the Menispermaceae family. But in more recently colonized islands, e.g. New Caledonia, FPM populations have shifted to new host plants of the Fabaceae family, Erythrina spp.. To understand
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Effects of supplemental root-zone pipe heating systems on the growth and development of strawberry plants in a greenhouse during the winter season N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-06-14 Jaewook Shin, Byungkwan Lee, Meiyan Cui, Hyein Lee, Jeesang Myung, Haeyoung Na, Changhoo Chun
ABSTRACT The effects of two types of supplemental root-zone pipe heating systems for strawberry (Fragaria × ananassa) cultivation in a conventionally heated greenhouse during the winter were compared. ‘Seolhyang’ strawberry transplants transplanted on coir grow bags were treated for crown-based heating (CBH) and root-based heating (RBH). The medium temperatures in the RBH system resulted in the longest
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Alternatives to SO2 to maintain phenolic compounds and overall quality of ready-to-eat table grapes during long-term storage N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-06-07 Francis Júnior Soldateli, Vanderlei Both, Lucas Mallmann Wendt, Magno Roberto Pasquetti Berghetti, Carine Borges Batista, Flavio Roberto Thewes, Vagner Ludwig, Giovani Gonçalves dos Santos, Fabio Rodrigo Thewes, Auri Brackmann
ABSTRACT This study aimed to evaluate the effects of ethanol, hot water, and 1-methylcyclopropene (1-MCP) as alternatives to sulphur dioxide (SO2) on the quality maintenance of ready-to-eat ‘BRS Nubia’, ‘BRS Isis’, and ‘Italia’ table grapes during storage. The treatments were: [1] control (only detached berries); [2] SO2 (1.5 g Na2S2O5 kg−1 grape); [3] ethanol (solution of 30% for 5 min); [4] hot water
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Evaluation of new cultivars of Gladiolus grandiflorus grown in subtropical conditions for their post-harvest performance and growth traits N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-05-28 Gulzar Akhtar, Muhammad Asif Shehzad, Hafiz Nazar Faried, Sami Ullah, Kashif Razzaq, Muhammad Ahsan, Yasar Sajjad
ABSTRACT The growth performance of exotic gladiolus cultivars in subtropical conditions along with their response to locally available preservatives to increase their vase life was evaluated. At first, corms of five gladiolus cultivars (White Prosperity, Chinan, Green Star, Piet Mohlan and Rose Supreme) were grown under natural field conditions, and their antioxidative enzymatic activities, gas exchange
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Polyamines dynamics in buds and flowers in response to fall foliar fertilisation in ‘Hayward’ kiwifruit N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-05-28 Saeid Eshghi, Mahsa Ashouri-Vajari, Farzad Amiri-Bahmanbiglo, Samaneh Yousefi, Babak Jamali
ABSTRACT The present study aimed to optimise a fertiliser combination and find the effective timing for foliar fertilisation in the fall to determine whether the application of N, B and Zn fertilisers can improve fruit set and alter endogenous polyamines. ‘Hayward’ Kiwi vines were sprayed with CO(NH2)2 (urea), H3BO3 and ZnSO4 (alone and in combination) on different dates (September 17, October 7 and
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Effects of parental genotypes on embryo rescue of seedless grape hybrid N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-05-24 Yijia Luo, Xiaoyue Cui, Peipei Zhu, Jianxia Zhang
ABSTRACT The success of seedless grape embryo rescue depends on many factors. To study the effects of parental genotypes on embryo rescue, we conducted 11 hybridisation combinations using nine stenospermocarpic seedless grapes as female parents and three seedless or seeded grapes as male parents. At the optimal sampling time of each mother plant, the hybrid ovules were inoculated and cultured on a
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Diallel analysis of yield and its components in processing hot pepper (Capsicum chinense Jacq.) N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-05-10 Rabindra Ramjattan, Pathmanathan Umaharan
ABSTRACT Capsicum chinense Jacq. plays a pivotal role in imparting pungency and flavour to cuisines in the Caribbean. Despite its popularity, hot pepper production in the region has declined. A major constraint has been the low yields associated with cultivation of uncharacterised landraces, high cost of production and poor profitability. Although breeding high yielding varieties has been recognised
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Adherence to resistance management guidelines for disease control spray programmes by New Zealand stonefruit growers N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-05-03 Peter L. Lo, Anna Kokeny, Nicola M. Park
ABSTRACT New Zealand grows apricots, cherries, nectarines, peaches and plums as fresh fruit for export and domestic markets, and processing. Our temperate, maritime climate makes wet weather diseases a constant threat. The stonefruit industry has written ‘best practice’ recommendations for seven fungicide and one bactericide chemical classes, that were designed to minimise or delay the development
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Effect of solar radiation on pigmentation, phenolic content and antioxidant activity in ‘Forelle’ pears during fruit growth and ripening N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-04-27 José Antonio Yuri, Álvaro Sepúlveda, Mauricio Fuentes, Lourdes Ubilla, Gustavo A. Lobos, Claudia Moggia
ABSTRACT Blush development is an important commercial quality attribute in European pear, but some cultivars exhibit reduced red colouration at harvest due to environmental stress. The objective of this study was to evaluate the effects of bagging ‘Forelle’ pear fruit at 85, 57 and 27 d before commercial harvest on ripening, pigment concentration, phenolic content and antioxidant activity, with unbagged
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Aroma volatile characterisation and gene expression analysis during fruit development and ripening of five pear (Pyrus L.) species N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-03-20 Yangyang Chen, Xiao Wu, Qionghou Li, Zhihua Xie, Xin Qiao, Hao Yin, Shaoling Zhang
ABSTRACT Bartlett, Hongnanguo, Korla Xiangli, Dangshansuli and Housui are representative cultivars from the five cultivated pear species that were chosen to identify aromatic compounds in fruit during developmental, mature and storage periods. We explored the expression levels of aroma formation-related genes during developmental and storage periods. The concentrations of the aromatic compounds first
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Microcalorimetry as a tool to measure shelf-life at postharvest of green asparagus N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-03-05 Alfonso A. Gardea-Bejar, Alberto Sánchez-Estrada, Jesús A. Orozco-Avitia, Martín E. Tiznado-Hernández, Rosalba Troncoso-Rojas, Jorge N. Mercado-Ruiz, Angel J. Ojeda-Contreras, Judith Fortiz-Hernández, Alma E. Robles-Sardín
ABSTRACT There are many methods to store and extend the postharvest life of asparagus spears, but their effectivity is measured by variables that do not reflect spears’ senescence. The objective of the experiment was to utilised isothermal microcalorimetry as a tool to objectively measure the quality loss of asparagus spears during postharvest storage. Asparagus spears cv. Brock were stored at 2°C
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Variability and assessment of interrelationships among yield and yield-related characters of pea accessions under the influence of high temperature N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-02-22 Chindy Ulima Zanetta, Mohd Y. Rafii, Juju Nakasha Jaafar, Thomas D. Warkentin, Budi Waluyo, Shairul Izan Ramlee
ABSTRACT Understanding the response and variability of pea accessions traits to high temperatures is an excellent strategy for breeding pea for heat tolerance. This research aimed to determine character variability and interrelationships among yield and yield-related traits as responses to pea grown under daily high temperature. Ninety-four pea accessions were grown under greenhouse conditions in Malaysia
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The fungal pathogen Fusarium solani poses an increasing threat to tomato production in Northern China N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-02-06 Chunyan Chen, Mingxuan Ma, Genzhong Liu, Fangfang Ma, Zhilong Bao
ABSTRACT Greenhouse cultivation conditions, such as low light intensity, high humidity and limited crop rotation, result in an increased severity of foot rot disease. Here, we isolated a fungal pathogen from tomato plants infected with foot rot disease to investigate its pathogenicity and establish an inoculation system to distinguish tomato susceptible and resistant varieties. Microscopic analyses
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Improvement of quality and shelf-life in strawberries by Pichia guilliermondii and hot air treatment N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-02-01 Yan Zhao, Yanfei Li, Jingjing Yin
ABSTRACT Strawberry is an important cash crop, but postharvest diseases would cause varying degrees of loss. Although hot air (45°C, 3 h) and antagonistic yeast (Pichia guilliermondii) treatments are effective in reducing pathogen attack, little is known about the relationship between postharvest disease and combination treatment methods in strawberry fruit. In our study, strawberries treated with
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Physiological changes of sweet pepper under low irrigation regimes applied in three phenological stages of vegetative growth, reproductive growth, and fruit set N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-02-01 Maryam Haghighi, Mohammad Javad Sharifani, Farinaz Parnianifard
ABSTRACT A factorial experiment based on a completely randomised design (CRD) with 10 replicates was planned to evaluate if commercially low irrigation reduced output and how physiologically low irrigation influenced yield at different plant growth stages. In three phonological phases of the vegetative stage (VG), reproductive stage (RP), and fruit set (FS), two irrigation regimes of 100% of field
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Identification and expression analysis of autophagy-related gene family associated with embryonic development in seeded and seedless grapes (Vitis vinifera) N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-01-18 Congbo Huang, Qian Wang, Chaohong Zhang, Yan Li
ABSTRACT Autophagy is an important protein degradation pathway in eukaryotes and is involved in multiple processes. To date, many autophagy-related genes had been studied in various plants, but a few studies have been reported on the role of autophagy in seed development. For centuries, seedlessness has been one of the most valuable characteristics of grapes. In this study, we identified a total of
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Effect of salicylic acid use on the leaf gas exchange response of cherry plants under root anoxia N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-01-18 Ignacio Errázuriz-Montanares, Francisco Maldonado, Paulo Cañete-Salinas, Cristian Espinosa, Jorge Guajardo, Karen Vergara, Sebastián Contreras, César Acevedo-Opazo
ABSTRACT The demand for fresh cherries is increasing; however, extreme weather events under climate change have resulted in a significant decrease in cherry productivity. In this regard, intense erratic precipitation is resulting in waterlogging thereby causing a decrease in leaf gas exchange response of the plant due to root anoxia. The use of Salicylic Acid (SA) can be a solution to reduce the negative
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Influence of sweet potato age and storage on cooking quality parameters N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-01-15 Sheryl D. Somerfield, Bruce Searle, Duncan Hedderley, Erin M. O’Donoghue
ABSTRACT Small-sized sweet potatoes are often sold as a specialty product, graded out from the main harvest, but they can also be intentionally achieved by harvesting much earlier than usual. Since these roots are biologically young, questions arise as to their ability to convert starch to maltose in a similar manner to the older, full-sized roots. Here we show that small sweet potatoes harvested 59
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Relationship between crop load and fruit quality in low-chill peaches and nectarines N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2023-01-11 Norma G. Micheloud, Carolina Giovannelli, María Flaviani, Paola Gabriel, Norberto Gariglio
ABSTRACT Fruits from low-chill peach and nectarine cultivars have lower quality in comparison with traditional varieties. One of the factors that most affect both fruit quality and fruit yield is the crop load (CL). The objective of the present work was to evaluate the relationship between CL and the external and internal fruit quality of low-chill peaches in a temperate-subtropical transition zone
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Effect of wet or dry pollen application methods on ‘Hayward’ kiwifruit production N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-12-15 Hari Sharan Pathak
ABSTRACT Kiwifruit is a dioecious plant that relies on pollen transfer from male to female flowers to produce export quality fruit. Achieving sufficient pollination in commercial orchards can be challenging, and various additional pollination treatments are used, including pollination by honey bees (Apis mellifera); wet application (once) in conjunction with honey bees; dry application (once) in conjunction
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Transcriptome sequencing reveals potential key genes of cellular changes during the first rapid growth stage of jujube fruit size N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-12-08 Meiyu Li, Shuang Song, Songbai Sheng, Ming Cao, Decang Kong, Xiaoming Pang, Wenhao Bo
ABSTRACT Cell number and size are essential factors in determining the final size of the fruit. However, studies on the cellular changes and molecular mechanisms of jujube fruit size development are still unclear. In this study, changes in fruit length, width, weight, and corresponding mesocarp cells were measured during jujube fruit development. The results showed that cell division and cell expansion
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Are the devitalisation requirements for imported cut flowers and foliage fit for purpose? N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-12-06 Christine H. Stark, Derrick J. Moot
ABSTRACT Devitalisation of biological materials is used as a phytosanitary measure to reduce the risk of establishment of unwanted plants in the environment and eliminate the spread of pests and diseases from imported material. For cut flowers and foliage, the treatment aims to prevent germination, propagation or any form of further growth without physical damage. Glyphosate is the primary chemical
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Potential of the mirid bug Engytatus nicotianae, and the parasitic wasp Tamarixia triozae for the biological control of the tomato-potato psyllid; a cage greenhouse assay N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-12-05 Emiliano R. Veronesi, Stephen D. Wratten, Chikako van Koten, Stephen L. Goldson
ABSTRACT The tomato-potato psyllid (TPP) Bactericera cockerelli is an important pest of several solanaceous crops. The current pest management strategy based on synthetic insecticides is being challenged through the development of pesticide resistance and environmental concerns. This contribution investigates the biological control potential of the mirid bug Engytatus nicotianae, either alone, or in
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Predicting the dried moisture content in Fijian Theobroma cacao beans using a mechanistic model N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-11-30 Rupantri Nandika Raju, Julian A. Heyes, Richard H. Archer, Qun Chen
ABSTRACT Fiji exports dried Theobroma cacao beans based on global demand for high-quality Fijian cocoa beans. Standard processing protocols for cocoa beans are fermentation and sun drying for 14 days. The ideal moisture content for quality dried cocoa beans is between 10% and 7% on a wet weight basis. The extended drying time and intermittent drying conditions cause quality losses, particularly from
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Effects of pre-bloom spraying thidiazuron and different embryo development media on seedless grape embryo rescue N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-11-06 Peipei Zhu, Jianxia Zhang
ABSTRACT Embryo rescue technology has been widely applied in seedless grape breeding, but its success depends on many factors. Here, two Vitis vinifera seedless varieties ‘Qinhong No.2’ and ‘Qinhong No.10’ were used as research objects, the inflorescences were sprayed with 0.5 mg·L−1 thidiazuron 10 days before flowering, and then the ovules from open- and self-pollination of them were cultured in solid–liquid
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Quantifying nutrient harvest indices and uptake patterns for six hard spring wheat genotypes grown under contrasting nitrogen supply N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-11-06 Emmanuel Chakwizira, Edmar Teixeira, Derrick J. Moot
ABSTRACT Wheat nutritional quality can be characterised by nutrient concentrations in the grain. This is the sum of nutrient uptake by the roots and re-translocation from other organs during grain filling. It is quantified by the Nutrient Harvest Index (NuHI: the fraction of total accumulated nutrient that is allocated to the grain). In contrast to nitrogen (NHI), there has been little quantification
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An approach for vacuole isolation and vacuolar protein identification by proteomics in apple N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-11-02 Ying Xiang, Xiao-Yu Huang, Yu-Wen Zhao, Chu-Kun Wang, Da-Gang Hu
ABSTRACT Apple, one of the most common fruits consumed worldwide, has a high economic value. Vacuoles are membrane-bound organelles in plant cells that perform many important functions. An increasing number of studies have reported a variety of proteins in a vacuole, with crucial functions in the transport, storage and metabolism of energy and substances. Here, we successfully extracted the vacuoles
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Assessing apple coming from agroclimatic differing locations: a tool for evaluating impact of environmental variation on postharvest N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-10-23 Besma Kahlaoui, Javier Sánchez-Contreras, Leonardo S. Santos, Enrique Misle, José Antonio Yuri
ABSTRACT The potential effect of preharvest environmental variation on the postharvest behaviour of apples (Malus domestica Borkh.) was assessed for ‘Cripps Pink’ variety apples grown in four different agroclimatic locations along the irrigated valley of Central Chile (Llancanao, Malloa, El Radal and El Parrón). The flesh firmness, total soluble solids (TSS), skin colour, internal ethylene concentration
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Leaf blight caused by Didymella glomerata on blackberry in Turkey N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-10-23 Sibel Derviş, Çigdem Ulubaş Serçe, Bilge Dağdelen Altunbaş, Nida Ünlü, Gözdem Pamukçu
The cultivation of blackberries has recently increased in Turkey, despite the fact that wild blackberry types have grown almost everywhere in the country. During the summer of 2011, leaf blight sym...
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Adaptability and phenotypic stability of apple cultivars in a subtropical climate N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-10-17 Guilherme Locatelli, Rayane Barcelos Bisi, Filipe Bittencourt Machado de Souza, Rafael Pio, Adriano Teodoro Bruzi, Paula Nogueira Curi, Antônio Marcos Cardoso de Sá, Maria Cecília Evangelista Vasconcelos Schiassi, Lee Kalcsits
ABSTRACT Breeding programmes have selected cultivars with a lower chill requirement. Apple production in these regions is socioeconomically valuable since fruit is harvested earlier than cooler regions. Understanding the adaptability and phenotypic stability in subtropical climate regions across multiple cropping seasons is important to ensure high productivity. The aim here was to evaluate the adaptability
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Effects of black geotextile mulch and grass mulch on the microclimate, fruit quality and anthocyanin components of ‘Xinyu’ table grape N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-10-12 Jinge Hu, Shijian Bai, Ronghua Zhao, Guang Chen, Junshe Cai
ABSTRACT We analysed the effects of black geotextile inter-row mulch, grass mulch and clean tillage as a control on the microclimate, anthocyanin components and fruit quality of ‘Xinyu’ table grape in a semi-arid climate. Black geotextile inter-row mulch increased the air and soil temperatures, while grass mulch decreased these. Six types of anthocyanins were detected in the grapes. Around 50% of the
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Effects of 24-epibrassinolide on the postharvest quality and antioxidant activities of blueberry fruits N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-10-06 Zhuo Min, Lu Jiang, Yimei Zhao, Xinye Wang, Qing Liu, Yang Zhang
ABSTRACT In this study, blueberry fruits (Vaccinium corymbosum cv. ‘Bluerain’) were sprayed with different concentrations (0.25, 0.5, 0.75, and 1 mg/L) of exogenous 24-epibrassionolide (EBR) after harvest and kept at 18°C and relative humidity of 90∼95% for 8 d. By observing the decay incidence and firmness changes, the optimal treatment concentration (0.75 mg/L) was screened, and then the effects
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Effect of selenium supplementation on mycorrhizal onion (Allium cepa L.) plants N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-10-06 Masoumeh Hamed-Far, Roghieh Hajiboland, Nasser Aliasgharzad
ABSTRACT Selenium (Se) is a beneficial element for higher plants; however, its involvement in improving the plants availability to soil nutrients has not been adequately addressed. Onion (Allium cepa L.) plants were grown under the sufficient (2 mM) and deficient (0.05 mM) phosphorus (P) supply and inoculated with an arbuscular mycorrhizal fungus (AMF, Diversispora versiformis) in the absence or presence
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Identification and genome-wide analysis of Bacillus strains JK19 and JK23, two potential biocontrol agents against plant pathogens N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-09-07 Lijuan Zhang, Wei Huang, Ning Wang, Bo Song, Yi Luo, Jing Zhu, Wei Wang
ABSTRACT Bacillus strains JK19 and JK23 have shown enhanced resistance against various plant pathogens, but the whole genomes and molecular mechanisms of these potential biocontrol agents remain poorly understood. In this study, genome-wide sequencing of these strains was performed with the Illumina HiSeq 4000 system. The JK19 genome (4,222,899 bp) was slightly smaller than the JK23 genome (3,996,105
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Trends in agrichemical use on stonefruit orchards in New Zealand from 2004–2019 N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-09-04 Peter L. Lo, Nicola M. Park, Anna Kokeny
ABSTRACT Annual spray diaries from orchardists in the two main stonefruit growing regions, Central Otago and Hawke’s Bay, were analysed. The analysis was restricted to products for disease and arthropod pest control. It included apricots, cherries, nectarines, peaches and plums grown as fresh fruit for export and domestic markets, and processing crops. Mean fungicide and bactericide applications declined
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Effects of phosphine (ECO2FUME®) on ‘Hass’ avocado fruit quality and target pest mortality N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-08-14 Paul P. B. Pidakala, Kambiz Esfandi, Saeedeh Afsar, Cristian Baldassarre, Guinevere I. Ortiz, Natalie Page-Weir, Adriana Najar-Rodriguez, Kristie O'Donnell, Lisa E. Jamieson, Allan B. Woolf
ABSTRACT Phosphine (PH3) is a methyl bromide alternative with the potential to control surface pests of New Zealand avocados as a pre-export disinfestation treatment. ‘Hass’ avocado fruit were treated with PH3 (as ECO2FUME® (2% PH3, 98% CO2 (w/w); Cytec Industries Inc.)). at 500, 750 and 1,500 ppm for 24, 48 and 72 h at 5–6 °C, along with vials containing mould mites (Tyrophagus communis) and greenhouse
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Cadmium leaching from some New Zealand cropping soils N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-08-07 Colin Gray, Paul Johnstone, Matt Norris, Dirk Wallace
ABSTRACT Mass balance modelling often shows that leaching is the main loss pathway for cadmium (Cd) from agricultural soils. There is however a scarcity of Cd leaching data measured under field conditions to support these modelled losses. This study used passive-wick fluxmeters installed at a depth of one metre at six commercial cropping sites to measure Cd in drainage over one year of monitoring.
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Phosphate-solubilising bacteria promote horticultural plant growth through phosphate solubilisation and phytohormone regulation N. Z. J. Crop Hortic. Sci. (IF 1.3) Pub Date : 2022-07-31 Yu Zhao, Sicen Liu, Bing He, Min Sun, Jishou Li, Rong Peng, Liangliang Sun, Xiaopeng Wang, Youpeng Cai, Hehe Wang, Xueqing Geng
ABSTRACT Microorganisms in the plant's rhizosphere are capable of solubilising insoluble soil phosphates and can promote plant growth. In this study, a total of 30 bacteria were isolated from soils in Changji city, and one highly efficient strain (B5) was identified as a member of Pseudomonadaceae. B5 exhibited phosphorus (P) solubilisation of 519.66 mg/L in a culture medium containing tricalcium phosphate