增密减氮栽培对杂交籼稻稻米品质的影响

刘子琛, 尚李岩, 叶佳雨, 盛添, 李瑞杰, 邓俊, 田小海, 张运波, 黄礼英

Effects of Dense Planting with Reduced Nitrogen Input Cultivation on the Grain Quality of Hybrid Indica Rice

Liu Zichen, Shang Liyan, Ye Jiayu, Sheng Tian, Li Ruijie, Deng Jun, Tian Xiaohai, Zhang Yunbo, Huang Liying

表3 2022年不同氮肥和密度处理下4个杂交稻品种RVA谱特征值

Table 3 RVA profile characteristics of four hybrid rice varieties under different N fertilizer and density treatments in 2022

品种Variety	氮肥Nitrogen	密度Density	PV (cP)	HV (cP)	FV (cP)	BKV (cP)	SB (cP)	GT (℃)
YLY900	N1	D1	3681b	2461bc	3508a	1220b	-174b	83.84ab
		D2	3893a	2584a	3499a	1309a	-395d	82.03bc
	N2	D1	3271d	2334d	3248c	938d	-23a	80.08cd
		D2	3601bc	2483b	3355b	1118c	-246c	78.98d
	N3	D1	3585c	2426bc	3415b	1159c	-170b	85.10a
		D2	3654bc	2391cd	3239c	1264ab	-415e	78.22d
LYPJ	N1	D1	2782b	2139b	3394a	643ab	612a	83.08b
		D2	2936a	2258a	3404a	678a	468d	83.32b
	N2	D1	2637d	2040c	3191b	596c	554b	82.05b
		D2	2723bc	2105bc	3152b	618bc	429e	83.13b
	N3	D1	2665cd	2085bc	3181b	580c	516c	83.57b
		D2	2712bcd	2115bc	3133b	596c	421e	86.38a
LY10	N1	D1	3495b	2539a	3896a	956c	400c	82.30bc
		D2	3716a	2369d	3828a	1347a	113e	85.83a
	N2	D1	3050c	2377cd	3557c	674d	507b	83.48abc
		D2	3482b	2454bc	3693b	1027b	211d	80.78c
	N3	D1	3129c	2462ab	3702b	667d	573a	84.35ab
		D2	3069c	2417bcd	3566c	652d	497b	83.60ab
CY6203	N1	D1	3399b	2377b	3255b	1022c	-144d	81.75c
		D2	3814a	2564a	3471a	1250a	-343f	83.11bc
	N2	D1	3120c	2240c	3158cd	880d	38b	86.62a
		D2	3438b	2286c	3159c	1151b	-279e	84.05abc
	N3	D1	3114c	2246c	3076de	868d	-38c	85.33ab
		D2	2839d	1928d	3059e	910d	221a	83.84bc
方差分析Analysis of variance
氮肥N			95.64^**	16.53^**	44.90^**	103.08^**	447.57^**	1.01^ns
密度D			46.37^**	0.72^ns	0.01^ns	133.46^**	1567.96^**	0.95^ns
品种V			541.97^**	185.41^**	305.16^**	1613.36^**	4159.57^**	4.48^ns
N×D			20.97^**	6.09^**	4.04^*	18.56^**	229.85^**	1.16^ns
N×V			11.07^**	4.22^**	0.58^ns	26.05^**	327.02^**	1.02^ns
D×V			1.10^ns	2.09^ns	0.99^ns	14.00^**	74.59^**	1.90^ns
N×D×V			3.78^**	3.16^*	1.68^ns	6.04^**	99.02^**	1.05^ns