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2 2021年不同氮肥和密度处理下4个杂交稻品种的RVA谱特征值

Table 2 RVA profile characteristics of four hybrid rice varieties under different N fertilizer and density treatments in 2021

品种Variety	氮肥Nitrogen	密度Density	PV (cP)	HV (cP)	FV (cP)	BKV (cP)	SB (cP)	GT (℃)
YLY900	N1	D1	3266bc	2206b	2788c	1060c	-478e	88.03ab
		D2	3788a	2261b	3592a	1526a	-196c	85.08bc
	N2	D1	3051d	2213b	3009b	838d	-42a	84.08c
		D2	3215c	2445a	3075b	770e	-139b	82.93c
	N3	D1	2618e	1904d	2026d	714f	-592f	89.35a
		D2	3289b	2069c	3051b	1220b	-238d	82.13c
LYPJ	N1	D1	2624a	1693c	3357b	931a	733c	87.23b
		D2	2003e	1854b	2439d	149e	436d	87.48b
	N2	D1	2086d	1994a	2348e	93f	262f	86.15b
		D2	2511b	1677c	3444a	834b	934b	87.28b
	N3	D1	2300c	1565d	3287c	735c	987a	87.75ab
		D2	1966e	1609d	2303e	357d	336e	90.70a
LY10	N1	D1	2920b	2236a	3708b	684c	788b	86.42bc
		D2	3287a	1937d	3648b	1350a	361d	90.12a
	N2	D1	2899bc	2111b	4031a	787b	1133a	86.95bc
		D2	2247e	2035c	2835d	212e	588c	84.82c
	N3	D1	2841c	2125b	2817d	716c	-24e	88.57ab
		D2	2344d	1927d	2928c	416d	585c	87.78abc
CY6203	N1	D1	2159e	2117a	2130e	42f	-29d	85.83c
		D2	2401d	1939b	2575d	462e	174c	87.27bc
	N2	D1	3181a	1568d	3101b	1613a	-80e	90.95a
		D2	2753b	1816c	2161e	936c	-592f	88.25abc
	N3	D1	2504c	1757c	2957c	747d	454b	89.60ab
		D2	3138a	2146a	4005a	992b	867a	89.08ab
方差分析Analysis of variance
氮肥N			52.45^**	31.12^**	12.28^**	3.69^*	26.24^**	1.27^ns
密度D			4.39^*	0.83^ns	4.49^*	4.72^*	0.00^ns	0.73^ns
品种V			434.24^**	132.12^**	139.59^**	797.61^**	807.65^**	4.40^ns
N×D			17.54^**	5.28^*	65.15^**	91.23^**	90.75^**	0.67^ns
N×V			146.78^**	28.91^**	204.46^**	334.79^**	588.01^**	0.88^ns
D×V			69.36^**	15.85^**	140.87^**	91.03^**	50.29^**	2.05^ns
N×D×V			62.90^**	9.12^**	211.25^**	370.00^**	315.37^**	0.93^ns