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2 外源褪黑素对干旱胁迫下大豆根系形态指标的影响

Table 2 Effects of exogenous melatonin on root morphology indicators under drought stress in soybean

指标 Index	年份 Year	处理 Treatment	V2		V4
指标 Index	年份 Year	处理 Treatment	4 d	8 d	4 d	8 d
根长 Root length (cm)	2018	CK	24.16±0.31 a	25.90±0.43 c	45.67±1.72 a	54.73±5.03 b
		D	24.86±1.32 a	27.20±0.36 b	46.43±3.09 a	58.30±1.90 ab
		LM	25.50±0.60 a	27.80±0.36 ab	46.76±5.81 a	64.33±4.20 a
		RM	25.80±1.34 a	28.36±0.41 a	48.30±4.27 a	62.16±1.42 a
	2019	CK	23.23±2.10 b	24.43±1.90 a	52.27±7.92 a	58.47±1.22 a
		D	25.03±0.95 ab	25.53±1.16 a	63.07±12.0 a	60.83±2.06 a
		LM	25.87±2.08 ab	26.80±2.91 a	63.13±1.52 a	68.40±6.09 a
		RM	26.73±1.23 a	26.10±1.05 a	62.53±4.77 a	64.63±8.64 a
根体积 Root volume (cm³)	2018	CK	9.89±0.05 a	10.22±0.09 a	18.63±0.05 c	19.01±0.01 c
		D	9.53±0.06 cd	9.89±0.05 bc	18.30±0.02 d	18.79±0.02 d
		LM	9.57±0.09 bc	9.92±0.06 b	18.35±0.03 de	18.86±0.06 de
		RM	9.57±0.08 bcd	9.95±0.04 b	18.40±0.02 e	18.93±0.02 e
	2019	CK	9.67±0.05 b	9.81±0.03 cd	19.79±0.06 a	20.16±0.06 a
		D	9.50±0.03 d	9.72±0.06 d	19.66±0.05 b	19.88±0.07 b
		LM	9.59±0.08 bcd	9.76±0.05 d	19.68±0.05 b	19.91±0.08 b
		RM	9.61±0.04 bc	9.75±0.04 d	19.69±0.09 b	19.95±0.07 b
根表面积 Root surface area (m²)	2018	CK	0.065±0.02 a	0.074±0.02 a	0.091±0.02 b	0.102±0.03 b
		D	0.054±0.01 cd	0.062±0.01 c	0.079±0.01 d	0.092±0.01 d
		LM	0.057±0.02 bc	0.068±0.01 b	0.084±0.02 cd	0.095±0.01 cd
		RM	0.061±0.02 ab	0.068±0.02 b	0.086±0.02 c	0.097±0.02 cd
	2019	CK	0.059±0.02 ab	0.068±0.01 b	0.112±0.03 a	0.122±0.01 a
		D	0.043±0.01 e	0.059±0.02 c	0.088±0.01 c	0.099±0.02 bc
		LM	0.050±0.01 d	0.062±0.01 c	0.091±0.02 bc	0.105±0.02 b
		RM	0.052±0.01 cd	0.062±0.01 c	0.095±0.01 b	0.105±0.03 b