Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Traits discovery in Hordeum vulgare sbsp. spontaneum accessions and in lines derived from interspecific crosses with wild Hordeum species for enhancing barley breeding efforts
Crop Science ( IF 2.3 ) Pub Date : 2020-10-06 , DOI: 10.1002/csc2.20360 Sajid Rehman 1 , Mariam Amouzoune 1, 2 , Houda Hiddar 1, 3 , Hafid Aberkane 1 , Rachid Benkirane 2 , Abdelkarim Filali‐Maltouf 3 , Muamar Al‐Jaboobi 1 , Leila Acqbouch 4 , Athanasios Tsivelikas 1 , Ramesh Pal Singh Verma 1, 5 , Zakaria Kehel 1 , Ahmed Birouk 4 , Ahmed Amri 1
Crop Science ( IF 2.3 ) Pub Date : 2020-10-06 , DOI: 10.1002/csc2.20360 Sajid Rehman 1 , Mariam Amouzoune 1, 2 , Houda Hiddar 1, 3 , Hafid Aberkane 1 , Rachid Benkirane 2 , Abdelkarim Filali‐Maltouf 3 , Muamar Al‐Jaboobi 1 , Leila Acqbouch 4 , Athanasios Tsivelikas 1 , Ramesh Pal Singh Verma 1, 5 , Zakaria Kehel 1 , Ahmed Birouk 4 , Ahmed Amri 1
Affiliation
Barley is a crop of global significance with multiple uses (feed, food and beverages), but its productivity worldwide is limited by several abiotic and biotic stresses. Crop wild relatives, exclusively, Hordeum vulgare ssp. spontaneum and H. bulbosum, are important genetic resources needed to develop new adapted varieties. A total of 117 accessions of H. spontaneum from different origins and 145 lines derived from crosses between barley and H. bulbosum supplied by NordGen were evaluated for field reactions to four major diseases. In addition, a set of 45 lines derived from interspecific crosses with H. spontaneum and H. bulbosum along with 10 checks were evaluated for agronomic traits and yield performance under four different environmental conditions and for quality attributes. The results showed that 37.7%, 71.6%, 15.1%, and 79.5% of H. spontaneum accessions were resistant to moderately resistant to net form net blotch, scald, leaf rust and powdery mildew, respectively, while the respective percentages in case of H. bulbosum derivatives were 31%, 20.4%, 17.9% and 70.6%. Only three accessions of H. spontaneum showed high resistance levels to the four diseases while 23 other accessions and 16 H. bulbosum derived lines showed resistance to a combination of two to four diseases. When H. bulbosum and H. spontaneum derived lines were evaluated under different environments, none of them gave higher grain yield and higher thousand kernel weight than the best checks. However, a few H. bulbosum derived lines showed higher straw yield, and lines combining tall stature, and lodging resistance were identified. Pre‐breeding efforts need to be strengthened further by evaluating more wild Hordeum accessions, their crossing with the best available parents and selection of elite germplasm to be made available to barley breeding programs for the development of new adapted and high yielding varieties.
中文翻译:
在大麦中发现特征。自发种质和与野生大麦种间杂交获得的品系,以促进大麦育种工作
大麦是具有多种用途(饲料,食品和饮料)的具有全球意义的作物,但其全球生产力受到多种非生物和生物胁迫的限制。播种野生亲缘种,专门为大麦。自发性和球茎H.球茎是开发新的适应品种所需的重要遗传资源。评估了NordGen提供的总共117种不同来源的自发血吸虫和来自大麦与球茎杂交后代的145个品系对四种主要疾病的田间反应。此外,一组自种与H. spontaneum和H. bulbosum杂交的45品系评估了10种检查的农艺性状和在四种不同环境条件下的产量表现以及质量属性。结果表明,自发性H. spontaneum种质的37.7%,71.6%,15.1%和79.5%分别对中度抗净形态网斑病,鳞屑,叶锈病和白粉病具有抗性,而在H情况下分别占球茎衍生物为31%,20.4%,17.9%和70.6%。自发性嗜血杆菌的三个种只对四种疾病表现出高抗性,而其他23种种和16个球茎红球菌衍生品系显示出对两种到四种疾病的组合有抗性。当球茎杆菌和自发H.在不同的环境下对衍生品系进行了评估,没有一个能比最佳检验获得更高的谷物产量和更高的千粒重。然而,一些球茎腐殖酸衍生的品系显示出更高的秸秆产量,并且鉴定出兼具高身材和抗倒伏性的品系。需要通过评估更多的野生大麦种质,与最佳亲本的杂交以及为大麦育种计划提供优良种质资源的选择来进一步加强大麦育种计划,以开发新的适应性高产品种。
更新日期:2020-10-06
中文翻译:
在大麦中发现特征。自发种质和与野生大麦种间杂交获得的品系,以促进大麦育种工作
大麦是具有多种用途(饲料,食品和饮料)的具有全球意义的作物,但其全球生产力受到多种非生物和生物胁迫的限制。播种野生亲缘种,专门为大麦。自发性和球茎H.球茎是开发新的适应品种所需的重要遗传资源。评估了NordGen提供的总共117种不同来源的自发血吸虫和来自大麦与球茎杂交后代的145个品系对四种主要疾病的田间反应。此外,一组自种与H. spontaneum和H. bulbosum杂交的45品系评估了10种检查的农艺性状和在四种不同环境条件下的产量表现以及质量属性。结果表明,自发性H. spontaneum种质的37.7%,71.6%,15.1%和79.5%分别对中度抗净形态网斑病,鳞屑,叶锈病和白粉病具有抗性,而在H情况下分别占球茎衍生物为31%,20.4%,17.9%和70.6%。自发性嗜血杆菌的三个种只对四种疾病表现出高抗性,而其他23种种和16个球茎红球菌衍生品系显示出对两种到四种疾病的组合有抗性。当球茎杆菌和自发H.在不同的环境下对衍生品系进行了评估,没有一个能比最佳检验获得更高的谷物产量和更高的千粒重。然而,一些球茎腐殖酸衍生的品系显示出更高的秸秆产量,并且鉴定出兼具高身材和抗倒伏性的品系。需要通过评估更多的野生大麦种质,与最佳亲本的杂交以及为大麦育种计划提供优良种质资源的选择来进一步加强大麦育种计划,以开发新的适应性高产品种。