数字农科院2.0

Evaluation of the Symbiotic Effects of Bradyrhizobium elkanii Y63-1 Inoculation on Soybean Zhongdou 63

文献类型： 外文期刊

作者： Lu Lu; Piao Leng †; Fuxiao Jin; Jiayu Lu; Qianqian Hu; Wanwan Liang; Yi Huang; Chanjuan Zhang; Chao Li; Zhuang Xu; Zhonglu Yang; Shuilian Chen; Songli Yuan * and Haifeng Chen

关键词： ZD63; Y63-1 rhizobium; symbiotic nitrogen fixation; nodulation phenotype; yield; nitrogen level

期刊名称： Agronomy-Basel

ISSN：

年卷期： 2025 年

页码：

收录情况： SCIE（2025版）

摘要： Our previous studies identified a new efficient and broad-spectrum rhizobium strain Bradyrhizobium elkanii Y63-1. This study evaluated the symbiotic effects of Y63-1 inoculation on Zhongdou 63 (ZD63) in native environments and under different nitrogen levels. The evaluation of symbiotic effects in native environments was conducted through pot experiments and field trials. Pot experiments were performed in greenhouse using three soil types. Field trials were conducted in three regions with different soil nitrogen levels. The symbiotic effect of soybean ZD63 inoculated with Y63-1 under different nitrogen levels was investigated through pot experiments in greenhouse. The results showed that Y63-1 is more competitive than the indigenous rhizobia of the three soil types in the nodulation of soybean ZD63. The nodulation ability and yield-related traits of soybean ZD63 were improved after inoculation with Y63-1 in the three regions, especially in Hanchuan, where the soil nitrogen level is relatively rich. The symbiotic effect of soybean ZD63 inoculated with Y63-1 in a pot experiment with four levels of N from 0 to 3.75 mmol/L was superior at N 2.81 mmol/L. Our findings provided technical support for the application of Y63-1 in China, and a theoretical basis for increasing the yield potential of soybean through inoculation with highly efficient rhizobia in agricultural production.

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