水稻穗上不同粒位籽粒胚乳结构及其结实期灌溉方式对它的调控作用

袁莉民, 展明飞, 章星传, 王志琴, 杨建昌

Endosperm Structure of Grains at Different Positions of Rice Panicle and Regulation Effect of Irrigation Regimes on It during Grain Filling

Li-Min YUAN, Ming-Fei ZHAN, Xing-Chuan ZHANG, Zhi-Qin WANG, Jian-Chang YANG

表1 结实期干湿交替灌溉对水稻产量及其构成的影响

Table 1 Effect of alternate wetting and drying irrigation during grain filling on grain yield and its components of rice

试验/品种 Exp./cultivar	处理 Treatment	穗数 Panicles per m²	每穗粒数 Spikelets per panicle	结实率 Seed-setting rate (%)	千粒重 1000-grain weight (g)	产量 Yield (g m^-2)
土培池试验 Tank exp.
扬稻6号 Yangdao 6	CK	280.4 a	150.2 a	84.6 b	26.5 b	957.7 b
	T1	282.6 a	148.9 a	90.2 a	27.7 a	1051.4 a
	T2	279.3 a	152.1 a	78.6 c	26.1 b	871.5 c
武运粳24 Wuyunjing 24	CK	271.3 a	167.5 a	82.6 b	27.0 b	986.5 b
	T1	273.5 a	168.9 a	87.5 a	27.6 a	1035.2 a
	T2	270.8 a	165.3 a	75.6 c	26.3 c	870.4 c
大田试验 Field exp.
扬稻6号 Yangdao 6	CK	257.5 a	156.4 a	82.5 b	26.3 b	873.8 b
	T1	255.3 a	157.9 a	89.6 a	27.5 a	993.4 a
	T2	256.6 a	158.2 a	77.3 c	26.1 b	818.9 c
武运粳24 Wuyunjing 24	CK	264.5 a	169.3 a	83.7 a	27.1 b	985.6 b
	T1	265.3 a	170.5 a	88.4 b	27.8 a	1110.2 a
	T2	263.6 a	168.4 a	77.5 c	26.4 c	908.1 c