外源褪黑素对干旱胁迫下春大豆品种绥农26形态、光合生理及产量的影响

张明聪, 何松榆, 秦彬, 王孟雪, 金喜军, 任春元, 吴耀坤, 张玉先

Effects of exogenous melatonin on morphology, photosynthetic physiology, and yield of spring soybean variety Suinong 26 under drought stress

ZHANG Ming-Cong, HE Song-Yu, QIN Bin, WANG Meng-Xue, JIN Xi-Jun, REN Chun-Yuan, WU Yao-Kun, ZHANG Yu-Xian

表4 外源褪黑素对干旱胁迫下大豆产量及其构成因素的影响

Table 4 Effects of exogenous melatonin on yield and yield composition under drought stress in soybean

时期 Stage 处理 Treatment 节数 Pitch number 单株荚数 Pods per plant 单株粒数 Seeds per plant 百粒重 100-grain weight (g) 单株产量 Yield per plant (g) 2018 V2 CK 18.5±1.35 a 26.4±6.65 a 70.7±18.38 a 20.31±0.16 a 14.36±3.73 a D 15.1±1.37 c 18.0±4.26 b 45.6±10.13 b 18.27±0.19 c 8.34±1.85 c LM 16.0±0.94 bc 18.8±3.93 b 50.6±10.46 b 19.91±0.13 b 10.07±2.08 bc RM 17.0±1.41 b 21.6±7.72 ab 54.7±20.83 b 20.13±0.02 ab 11.01±2.19 b V4 CK 17.9±0.87 a 26.8±6.37 a 72.3±21.80 a 19.22±0.06 a 13.90±4.19 a D 15.2±1.13 c 13.7±3.71 c 35.0±9.97 c 17.47±0.09 d 6.09±1.75 c LM 16.1±1.19 bc 17.2±3.73 c 44.1±7.05 bc 18.49±0.12 c 8.15±1.30 c RM 16.3±1.25 b 21.8±5.55 b 56.6±15.90 b 18.97±0.02 b 10.73±3.01 b 2019 V2 CK 18.0±1.41 a 24.2±4.05 a 67.8±12.48 a 20.48±0.04 a 13.78±2.54 a D 15.8±1.62 b 17.0±3.83 b 45.4±7.59 c 17.68±0.05 d 8.03±1.34 c LM 16.6±0.96 b 20.6±3.56 ab 54.5±8.21 bc 18.83±0.01 c 10.26±1.54 b RM 16.5±1.08 b 23.1±4.77 a 59.5±11.42 ab 19.63±0.13 b 11.68±2.24 b V4 CK 16.7±1.95 a 19.5±4.09 a 55.8±11.50 a 19.98±0.18 a 11.15±2.29 a D 15.4±0.70 b 11.3±2.71 c 31.3±11.30 c 16.06±0.05 c 5.91±2.14 c LM 15.8±0.63 ab 11.8±2.94 c 32.1±7.61 c 18.89±0.06 b 6.14±1.45 c RM 16.2±0.92 ab 15.1±2.96 b 41.2±7.94 b 19.02±0.13 b 8.03±1.55 b