外源生长调节物质对甜高粱种子萌发过程中盐分胁迫的缓解效应及其生理机制

朱广龙,宋成钰,于林林,陈许兵,智文芳,刘家玮,焦秀荣,周桂生

Alleviation Effects of Exogenous Growth Regulators on Seed Germination of Sweet Sorghum under Salt Stress and Its Physiological Basis

Guang-Long ZHU,Cheng-Yu SONG,Lin-Lin YU,Xu-Bing CHEN,Wen-Fang ZHI,Jia-Wei LIU,Xiu-Rong JIAO,Gui-Sheng ZHOU

表8 不同外源生长调节物质对盐分胁迫下甜高粱种子渗透调节物质含量的影响

Table 8 Effect of different types of exogenous growth regulator on osmotic adjustment substance of sweet sorghum under salt stress

盐分浓度 Salt concentration (mmol L^-1 )	生长调节物质 Exogenous growth regulator	渗透调节物质含量 Content of osmotic adjustment substance
盐分浓度 Salt concentration (mmol L^-1 )	生长调节物质 Exogenous growth regulator	MDA (μmol g^-1FW)	可溶性蛋白 Soluble protein (mg g^-1FW)	可溶性糖 Soluble sugar (mg g^-1FW)
0	0	29.0 a	3.53 d	12.72 c
	KT	26.2 b	6.60 c	12.74 c
	GA₃	21.1 c	7.23 c	17.09 b
	SA	12.4 d	8.75 b	25.26 a
	GABA	7.6 e	14.09 a	25.42 a
	平均值Mean	19.3	8.04	18.65
50	0	32.6 a	4.21 c	14.66 e
	KT	30.7 b	6.97 b	16.79 d
	GA₃	29.2 b	7.78 b	20.80 c
	SA	14.8 c	14.57 a	28.60 b
	GABA	11.4 d	14.43 a	30.21 a
	平均值Mean	23.7	9.59	22.21
100	0	32.3 a	4.63 d	19.21 e
	KT	15.5 b	8.55 c	21.10 d
	GA₃	13.6 b	8.61 c	25.61 c
	SA	32.7 a	21.38 a	40.51 a
	GABA	31.5 a	15.23 b	35.40 b
	Mean	25.1	11.68	28.37
150	0	35.3 a	8.44 b	23.78 d
	KT	17.7 b	23.69 a	42.95 b
	GA₃	33.4 a	8.55 b	48.27 a
	SA	32.6 a	9.30 b	27.33 c
	GABA	17.2 b	21.66 a	28.52 c
	平均值Mean	27.2	14.33	34.17