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Optimizing Boron Seed Coating Level and Boron-Tolerant Bacteria for Improving Yield and Biofortification of Chickpea
Journal of Soil Science and Plant Nutrition ( IF 3.9 ) Pub Date : 2020-08-04 , DOI: 10.1007/s42729-020-00313-y
Mubshar Hussain , Noman Mehboob , Muhammad Naveed , Kousar Shehzadi , Tauqeer Ahmad Yasir

Boron (B) is a vital nutrient equally important for plants and human beings. The native soil fertility of arid and semi-arid regions of Pakistan is very low where chickpea is grown on large scale. In such soils, B deficiency is the leading constraint not only for profitable chickpea production but also lead to low B-enriched chickpea grains. Boron seed coating and inoculation with B-tolerant bacteria (BTB) can be effective to improve crop response grown on such soils. Chickpea seeds were coated with different levels of boron (0.0 control; 1.0, 1.5, 2.0, 2.5, and 3.0 g B/kg). Coated and uncoated seeds were divided in two portions and half of these seeds were inoculated with BTB, i.e., Bacillus sp. MN54 while the other half of these seeds were not inoculated with BTB, i.e., Bacillus sp. MN54. Boron seed coating improved seedling growth, nodulation, seed yield, and grain B concentration. Crop response for such characteristics was further augmented with the inoculation of BTB. It was found that seed coating with 1.5 g B kg−1 along with BTB inoculation was the best combination to improve seedling growth, nodulation, and grain yield of chickpea. Higher concentration of B in chickpea seeds was recorded at higher levels of B seed coating (3.0 g B kg−1 soil). Boron seed coating improved grain yield by 9–25% compared with the control treatment. Boron seed coating at lower rates (1.5 g kg−1) along with seed inoculation with BTB Bacillus sp. MN54 seemed a viable option to improve nodulation, growth, yield, and grain B biofortification of chickpea.

中文翻译:

优化硼种子包衣水平和耐硼细菌以提高鹰嘴豆的产量和生物强化

硼 (B) 是一种对植物和人类同等重要的重要营养素。巴基斯坦干旱和半干旱地区的本地土壤肥力非常低,在那里大规模种植鹰嘴豆。在这样的土壤中,B 缺乏不仅是鹰嘴豆生产盈利的主要制约因素,而且还会导致富含 B 的鹰嘴豆籽粒含量低。硼种子包衣和接种耐硼细菌 (BTB) 可有效改善在此类土壤上生长的作物反应。鹰嘴豆种子涂有不同水平的硼(0.0 对照;1.0、1.5、2.0、2.5 和 3.0 g B/kg)。包衣和未包衣的种子分为两部分,这些种子的一半接种 BTB,即芽孢杆菌。MN54 而这些种子的另一半没有接种 BTB,即芽孢杆菌。MN54。硼种衣改善幼苗生长、结瘤、种子产量和谷物 B 浓度。接种 BTB 进一步增强了对这些特性的作物响应。结果表明,1.5 g B kg−1 种衣和 BTB 接种是提高鹰嘴豆幼苗生长、结瘤和籽粒产量的最佳组合。在较高水平的 B 种皮(3.0 g B kg-1 土壤)下记录到鹰嘴豆种子中较高的 B 浓度。与对照处理相比,硼种子包衣使谷物产量提高了 9-25%。硼种子包衣以较低的速率 (1.5 g kg−1) 以及 BTB 芽孢杆菌的种子接种。MN54 似乎是改善鹰嘴豆结瘤、生长、产量和谷物 B 生物强化的可行选择。结果表明,1.5 g B kg−1 种衣和 BTB 接种是提高鹰嘴豆幼苗生长、结瘤和籽粒产量的最佳组合。在较高水平的 B 种皮(3.0 g B kg-1 土壤)下记录到鹰嘴豆种子中较高的 B 浓度。与对照处理相比,硼种子包衣使谷物产量提高了 9-25%。硼种子包衣以较低的速率 (1.5 g kg−1) 以及 BTB 芽孢杆菌的种子接种。MN54 似乎是改善鹰嘴豆结瘤、生长、产量和谷物 B 生物强化的可行选择。结果表明,1.5 g B kg−1 种衣和 BTB 接种是提高鹰嘴豆幼苗生长、结瘤和籽粒产量的最佳组合。在较高水平的 B 种皮(3.0 g B kg-1 土壤)下记录到鹰嘴豆种子中较高的 B 浓度。与对照处理相比,硼种子包衣使谷物产量提高了 9-25%。硼种子包衣以较低的速率 (1.5 g kg−1) 以及 BTB 芽孢杆菌的种子接种。MN54 似乎是改善鹰嘴豆结瘤、生长、产量和谷物 B 生物强化的可行选择。与对照处理相比,硼种子包衣使谷物产量提高了 9-25%。硼种子包衣以较低的速率 (1.5 g kg−1) 以及 BTB 芽孢杆菌的种子接种。MN54 似乎是改善鹰嘴豆结瘤、生长、产量和谷物 B 生物强化的可行选择。与对照处理相比,硼种子包衣使谷物产量提高了 9-25%。硼种子包衣以较低的速率 (1.5 g kg−1) 以及 BTB 芽孢杆菌的种子接种。MN54 似乎是改善鹰嘴豆结瘤、生长、产量和谷物 B 生物强化的可行选择。
更新日期:2020-08-04
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