干湿交替灌溉对水稻花后同化物转运和籽粒灌浆的影响

徐云姬, 许阳东, 李银银, 钱希旸, 王志琴, 杨建昌

Effect of Alternate Wetting and Drying Irrigation on Post-anthesis Remobilization of Assimilates and Grain Filling of Rice

Yun-Ji XU, Yang-Dong XU, Yin-Yin LI, Xi-Yang QIAN, Zhi-Qin WANG, Jian-Chang YANG

表2 干湿交替灌溉对水稻强、弱势粒灌浆特征参数的影响

Table 2 Effect of alternate wetting and drying irrigation on grain filling parameters of superior and inferior spikelets of rice

品种 Cultivar	灌溉方式 Irrigation regime	粒位 Grain position	粒重 Grain weight (A) (mg grain^-1)	最大灌浆速率 The maximum grain-filling rate (G_max) (mg grain^-1 d^-1)	平均灌浆速率 The mean grain-filling rate (G_mean) (mg grain^-1 d^-1)
扬两优6号	CI	S	27.34 a	1.87 a	1.19 a
Yangliangyou 6		I	19.06 d	1.27 d	0.84 d
	WMD	S	27.64 a	1.89 a	1.21 a
		I	21.60 c	1.32 c	0.95 c
	WSD	S	24.82 b	1.61 b	1.03 b
		I	15.00 e	1.01 e	0.67 e
武运粳24	CI	S	26.84 a	1.89 a	1.22 a
Wuyunjing 24		I	16.91 d	1.16 d	0.77 d
	WMD	S	26.99 a	1.84 a	1.18 a
		I	18.80 c	1.32 c	0.88 c
	WSD	S	24.33 b	1.69 b	1.09 b
		I	15.00 e	1.01 e	0.67 e
旱优8号	CI	S	26.85 a	1.88 a	1.13 a
Hanyou 8		I	16.78 d	1.21 d	0.81 d
	WMD	S	26.92 a	1.86 a	1.16 a
		I	18.56 c	1.33 c	0.92 c
	WSD	S	24.67 b	1.63 b	1.08 b
		I	15.19 e	1.00 e	0.70 e