Khan Amir, Singh Ajay Veer, Pareek Navneet, Arya Pratima, Upadhayay Viabhav Kumar, Kumar Jugran Arun, Kumar Mishra Pankaj, Goel Reeta
Biofortification lab, Department of Microbiology, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, India.
Department of Soil Science, College of Agriculture, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, India.
Front Plant Sci. 2023 Jan 30;14:1042053. doi: 10.3389/fpls.2023.1042053. eCollection 2023.
Kidney bean () productivity and nutritional quality are declining due to less nutrient accessibility, poor soil health, and indigent agronomic practices in hilly regions, which collectively led to a fall in farmer's income, and to malnutrition in consumers. Addressing such issues, the present investigation was designed to assess the impact of MP1 and N26 treatment on soil health, microbial shift, yield, and nutrient status of the kidney bean in the Harsil and Chakrata locations of Indian Central Himalaya. MP1 and N26 were characterized as cold adaptive PGPR as they possessed remarkable plant growth promoting traits. Further, field trial study with PGPR treatments demonstrated remarkable and prolific influence of both strains on yield, kidney bean nutrient status, and soil health at both geographical locations, which was indicated with improved grain yield (11.61%-23.78%), protein (6.13%-24.46%), and zinc content (21.86%-61.17%) over control. The metagenomic study revealed that use of bioinoculants also concentrated the nutrient mobilizing and plant beneficial microorganisms in the rhizosphere of the kidney bean. Moreover, correlation analysis also confirmed that the plant growth-promoting traits of MP1 and N26 are the basis for improved yield and nutrient status of the kidney bean. Further, cluster and principal component analysis revealed that both P MP1 and N26 exhibited pronounced influence on yield attributes of the kidney bean at both the locations. At the Harsil location, the MP1-treated seed demonstrated highest grain yield over other treatments, whereas at Chakarata, MP1, and N26 treatment showed almost equal enhancement (~23%) in grain yield over control. The above results revealed that these bioinoculants are efficient plant growth promoters and nutrient mobilizers; they could be used as green technology to improve human health and farmer's income by enhancing soil health, yield, and nutrient status of the kidney bean at hilly regions.
由于营养物质可及性降低、土壤健康状况不佳以及山区不良的农艺 practices，菜豆（）的生产力和营养品质正在下降，这些因素共同导致了农民收入下降以及消费者营养不良。为了解决这些问题，本研究旨在评估 MP1 和 N26 处理对印度中部喜马拉雅山脉哈西尔和查克拉塔地区菜豆土壤健康、微生物变化、产量和养分状况的影响。MP1 和 N26 被表征为冷适应性植物根际促生细菌（PGPR），因为它们具有显著的促进植物生长的特性。此外，PGPR 处理的田间试验研究表明，这两种菌株对两个地理位置的菜豆产量、养分状况和土壤健康都有显著且多产的影响，与对照相比，谷物产量提高了（11.61%-23.78%）、蛋白质提高了（6.13%-24.46%）、锌含量提高了（21.86%-61.17%）。宏基因组学研究表明，使用生物菌剂还使菜豆根际中营养物质动员和植物有益微生物富集。此外，相关性分析也证实，MP1 和 N26 的促植物生长特性是菜豆产量和养分状况改善的基础。进一步的聚类和主成分分析表明，P MP1 和 N26 对两个地点菜豆的产量属性都有显著影响。在哈西尔地区，经 MP1 处理的种子的谷物产量高于其他处理，而在查克拉塔地区，MP1 和 N26 处理的谷物产量比对照提高了近（约）23%。上述结果表明，这些生物菌剂是有效的植物生长促进剂和营养物质动员剂；它们可作为绿色技术，通过改善山区菜豆的土壤健康、产量和养分状况来改善人类健康和农民收入。
