接种中华根瘤菌SD101和避光对紫花苜蓿固氮和光合作用的影响

刘淑霞,魏国江,荆瑞勇,王丽艳,关向军,孙宇峰,王广达,韩如月,石杰,郭永霞

Effects of Sinorhizobium SD101 Inoculation and Shading on Nitrogen Fixation and Photosynthesis of Medicago sativa L.

Shuxia Liu,Guojiang Wei,Ruiyong Jing,Liyan Wang,Xiangjun Guan,Yufeng Sun,Guangda Wang,Ruyue Han,Jie Shi,Yongxia Guo

表1 避光与接种根瘤菌SD101对紫花苜蓿生长和结瘤固氮能力的影响

Table 1 Effects of shading and rhizobia inoculation on growth and nitrogen capacity in alfalfa

项目Item 未避光Unshaded 避光Shaded 未接种 Non-inoculated 接种SD101 Inoculated SD101 未接种 Non-inoculated 接种SD101 Inoculated SD101 株高Plant height (cm) 76.54±0.12ab 80.47±0.09a 68.27±0.20b 78.39±0.15ab 地上生物量Aboveground biomass (g) 1.84±0.10b 2.03±0.14a 1.01±0.13c 1.03±0.09c 叶面积Leaf area (cm2) 1.17±0.05a 1.23±0.07a 0.76±0.01b 0.81±0.03b 单株根瘤数Nodules per plant 16.55±0.05b 20.11±0.02a 9.12±0.08c 10.43±0.05c 单个根瘤重Single nodule weight (g) 0.0043±0.0001b 0.0051±0.0004a 0.0011±0.0003c 0.0014±0.0000c 固氮酶活性Nitrogenase activity [ug/(g·h)] 30.3±0.3b 35.0±0.6a 18.7±0.5c 22.6±0.1c