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Desiccant drying prior to hermetic storage extends viability and reduces bruchid (Callosobruchus chinensis L.) infestation of mung bean (Vigna radiata (L.) R. Wilczek) seeds
Journal of Stored Products Research ( IF 2.7 ) Pub Date : 2021-09-11 , DOI: 10.1016/j.jspr.2021.101888
Razia Sultana 1 , Keshavulu Kunusoth 1, 2 , Lakshmiprasad Amineni 1 , Peetambar Dahal 3 , Kent J. Bradford 3
Affiliation  

Seeds of mung bean (Vigna radiata (L.) R. Wilczek) are subject to loss of viability due to aging and damage from pulse beetles (or bruchids; Callosobruchus spp.) infestation during storage. We investigated whether seed drying using desiccants and hermetic packaging would prevent or ameliorate these consequences of storage. Sun-dried mung bean seeds at a moisture content of 10% were subjected to further drying for 72 h using five different desiccants: Drying Beads® (a zeolite-based desiccant), silica gel, sodium aluminum silicate, activated alumina, and cow-dung ash (a traditional desiccant). Seeds were subsequently stored in hermetic plastic containers in the presence of these desiccants under ambient conditions along with sun-dried seeds stored in cloth bags or in hermetic containers. In addition, parallel samples of each treatment were inoculated with one pair of bruchid beetles (C. chinensis L.) and stored under the same conditions. The seed drying treatments did not affect initial seed quality (germination percentage and seedling vigor) significantly. After storage for 9 months at ambient temperatures, seeds dried using Drying Beads, silica gel, sodium aluminum silicate and activated alumina had higher germination percentages, seedling vigor indices and soil emergence, and lower electrical conductivity (leakage upon imbibition) and fungal infestation compared to other conditions. In addition, the mung bean seeds inoculated with bruchids and stored with these effective desiccants had less damage, oviposition, and insect respiratory activity in the hermetic containers and maintained higher seed germination and seedling vigor after six months of storage compared to other treatments and controls. The results demonstrate the superior ability of desiccants to quickly and safely dry seeds prior to and during storage and the benefits of such drying and hermetic storage conditions for preventing seed deterioration and insect damage during storage.



中文翻译:

密封储存前的干燥剂干燥可延长活力并减少绿豆 (Vigna radiata (L.) R. Wilczek) 种子对绿豆 (Callosobruchus chinensis L.) 的侵染

绿豆(Vigna radiata (L.) R. Wilczek)的种子会因老化和豆虫(或 bruchids;Callosobruchus)的损坏而丧失活力spp.) 储存期间的侵染。我们调查了使用干燥剂和密封包装进行种子干燥是否会防止或改善储存的这些后果。使用五种不同的干燥剂将水分含量为 10% 的晒干绿豆种子进一步干燥 72 小时:Drying Beads®(一种基于沸石的干燥剂)、硅胶、硅酸铝钠、活性氧化铝和牛-粪灰(一种传统的干燥剂)。随后将种子与储存在布袋或密封容器中的晒干种子一起在环境条件下在这些干燥剂的存在下储存在密封塑料容器中。此外,每个处理的平行样品接种一对 bruchid 甲虫(C. chinensisL.) 并在相同条件下储存。种子干燥处理对初始种子质量(发芽率和幼苗活力)没有显着影响。在环境温度下储存 9 个月后,使用干燥珠、硅胶、硅酸铝钠和活性氧化铝干燥的种子具有更高的发芽率、幼苗活力指数和土壤出苗率,以及更低的电导率(吸水渗漏)和真菌感染其他条件。此外,与其他处理和对照相比,接种 bruchid 并用这些有效干燥剂储存的绿豆种子在密封容器中的损伤、产卵和昆虫呼吸活动较少,并且在储存 6 个月后仍保持较高的种子发芽和幼苗活力。

更新日期:2021-09-12
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