Analysis of High Yield, Stable Yield and Adaptability of New National Approval Maize Variety ‘Xundan 996’

doi:10.11923/j.issn.2095-4050.cjas2024-0043

Abstract

Abstract:

In order to comprehensively understand the production characteristics and application value of the national approved maize variety ‘Xundan 996’, the high yield, stability and adaptability of ‘Xundan 996’ were statistically analyzed by means of yield average, coefficient of variation, high stability coefficient, and regression coefficient using the data of the regional test and production test in Huang-Huai-Hai summer maize area from 2019 to 2020. The results showed that the average regional trial yield and production trial yield of ‘Xundan 996’ were 10431.8 kg/hm² and 9904.5 kg/hm², increasing by 3.6% and 4.6% compared with the control‘Zhengdan 958’, respectively. In the 2-year regional test, the coefficient of variation of yield was 16.73% and 12.91%, both lower than the control. The high stability coefficients were 78.29% and 82.21%, respectively, which were both higher than the control. The regression coefficients were 0.9440 and 0.9398, which were both less than 1 and lower than that of the control. The yield increase rates were 64.1% and 82.1%, respectively. Meanwhile, the trial results indicate that ‘Xundan 996’ has good lodging resistance, disease resistance, and high temperature tolerance. Comprehensive analysis shows that ‘Xundan 996’ is a new maize variety with high and stable yield, wide adaptability, and strong stress resistance, which is suitable for large area planting in the summer maize area of Huang-Huai-Hai.

Key words: maize, ‘Xundan 996’, high yield, stable yield, adaptability

JIN Hailei, ZHANG Huiyu, ZHANG Zhifang, XU Guoju, WANG Liangfa. Analysis of High Yield, Stable Yield and Adaptability of New National Approval Maize Variety ‘Xundan 996’[J]. Journal of Agriculture, 2025, 15(5): 7-11.

Figures/Tables 5

References 24

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参试品种	产量/(kg/hm²)	较CK增产/%	位次	显著性水平
参试品种	产量/(kg/hm²)	较CK增产/%	位次	0.05	0.01
惠民191	10987.5	8.3	1	a	A
粒隆953	10935.0	7.8	2	a	A
ND1705	10890.0	7.4	3	a	A
登海1810	10867.5	7.1	4	a	AB
金裕528	10648.5	5.0	5	b	BC
浚单996	10489.5	3.4	6	bc	CD
甘玉160	10386.0	2.4	7	cd	D
粒隆927	10287.0	1.4	8	de	DE
郑单958(CK)	10143.0	－	9	e	EF
甘优165	9907.5	-2.3	10	f	FG
国瑞679	9870.0	-2.7	11	f	G

参试品种	产量/(kg/hm²)	较CK增产/%	位次	显著性水平
参试品种	产量/(kg/hm²)	较CK增产/%	位次	0.05	0.01
惠民191	10987.5	8.3	1	a	A
粒隆953	10935.0	7.8	2	a	A
ND1705	10890.0	7.4	3	a	A
登海1810	10867.5	7.1	4	a	AB
金裕528	10648.5	5.0	5	b	BC
浚单996	10489.5	3.4	6	bc	CD
甘玉160	10386.0	2.4	7	cd	D
粒隆927	10287.0	1.4	8	de	DE
郑单958(CK)	10143.0	－	9	e	EF
甘优165	9907.5	-2.3	10	f	FG
国瑞679	9870.0	-2.7	11	f	G

参试品种	产量/(kg/hm²)	较CK增产/%	位次	显著性水平
参试品种	产量/(kg/hm²)	较CK增产/%	位次	0.05	0.01
纵横699	10791.0	8.0	1	a	A
胜美538	10632.0	6.4	2	a	A
浚单996	10374.0	3.8	3	b	B
恒丰656	10131.0	1.4	4	c	C
粒隆957	10083.0	0.9	5	cd	C
YW2038	10014.0	0.2	6	cd	C
郑单958(CK)	9991.5	－	7	cd	C
华农666	9939.0	-0.5	8	d	C
YW2037	9639.0	-3.5	9	e	D
YW2039	9553.5	-4.4	10	e	D
宇玉976	9259.5	-7.3	11	f	E
荃金玉898	9187.5	-8.0	12	f	E

参试品种	产量/(kg/hm²)	较CK增产/%	位次	显著性水平
参试品种	产量/(kg/hm²)	较CK增产/%	位次	0.05	0.01
纵横699	10791.0	8.0	1	a	A
胜美538	10632.0	6.4	2	a	A
浚单996	10374.0	3.8	3	b	B
恒丰656	10131.0	1.4	4	c	C
粒隆957	10083.0	0.9	5	cd	C
YW2038	10014.0	0.2	6	cd	C
郑单958(CK)	9991.5	－	7	cd	C
华农666	9939.0	-0.5	8	d	C
YW2037	9639.0	-3.5	9	e	D
YW2039	9553.5	-4.4	10	e	D
宇玉976	9259.5	-7.3	11	f	E
荃金玉898	9187.5	-8.0	12	f	E

参试品种	产量/(kg/hm²)	较CK增产/%	位次
粒隆953	10302.0	8.8	1
惠民191	10153.5	7.3	2
宇玉812	9994.5	5.6	3
浚单996	9904.5	4.6	4
郑单958(CK)	9466.5	－	5