Introducing and screening of new high-quality and high-yield fresh maize varieties

doi:10.16178/j.issn.0528-9017.20230679

Abstract

Abstract:

There are numerous fresh maize varieties in China. In order to select suitable fresh maize varieties for cultivation in Shuangxi and also align with market demands, this study used seven sweet maize varieties and eight waxy maize varieties as experimental materials. Plant and ear morphology, yield and yield components were further analyzed to explore the key plant and ear morphology factors that affect the fresh maize yield. This study showed that fresh grain yield contributes more to the yield of sweet maize, compared with kernel number and fresh 1000-kernel weight; while the yield of waxy maize is more closely related to fresh 1000-kernel weight. Further more, the correlation between plant and ear agronomic traits including plant height, ear height, ear length, ear diameter, yield and yield components revealed that yield was significantly positively correlated with ear-plant height ratio and ear diameter. In this study, the sweet maize Cuibaitian 926 and Zhetian 922, and the waxy maize Heitiannuo 168 and Zhenuoyu 21 exhibited outstanding comprehensive traits, including high yield and quality, resistance to lodging and strong adaptability. These varieties possessed high popularization value and can be cultivated on a larger area in Pan'an.

Key words: fresh maize, yield, variety introduction, variety screening

CLC Number:

S513

CHEN Youlai, ZHANG Ping, ZHAO Fucheng, CHEN Zhongyou, LU Renfa. Introducing and screening of new high-quality and high-yield fresh maize varieties[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(10): 2387-2392.

Figures/Tables 5

References 11

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类型	品种	株型	倒伏率/%	穗长/cm	穗粗/cm	秃尖长/cm	穗苞重/kg	穗形	粒色	苞叶长短
甜玉米	浙甜11	紧凑	0	19.2	5.15	2.5	4.20	长筒形	黄	中
	浙甜19	紧凑	0	16.8	5.30	1.1	4.49	筒形	黄	中
	浙甜922	半紧凑	0	20.2	5.60	2.4	4.50	长筒形	黄	长
	浙泰甜928	半紧凑	0	18.2	5.40	2.5	4.10	筒形	黄	长
	脆甜321	松散	0	17.6	5.70	1.2	3.81	筒形	白	长
	脆甜89	松散	1	16.2	5.70	2.3	3.31	筒形	黄	长
	脆白甜926	松散	0	18.1	5.10	1.8	3.60	长筒形	白	短
糯玉米	浙糯玉14	半紧凑	0	18.3	4.80	3.1	3.76	锥形	白	长
	浙糯玉18	半紧凑	0	15.0	4.50	1.5	2.76	锥形	白+红	长
	浙糯玉16	紧凑	0	17.3	5.30	2.4	3.80	筒形	白	中
	浙糯玉21	紧凑	2	15.8	4.90	3.2	4.60	锥形	白+红	长
	浙糯玉24	半紧凑	3	16.6	4.80	2.4	3.10	锥形	白	长
	红甜糯18	紧凑	0	15.6	4.40	1.6	2.80	锥形	红+白	长
	黑甜糯168	紧凑	0	19.5	4.70	4.2	3.54	长筒形	黑	中
	黑甜糯188	紧凑	0	18.6	4.90	1.1	3.59	筒形	黑	中

类型	品种	株型	倒伏率/%	穗长/cm	穗粗/cm	秃尖长/cm	穗苞重/kg	穗形	粒色	苞叶长短
甜玉米	浙甜11	紧凑	0	19.2	5.15	2.5	4.20	长筒形	黄	中
	浙甜19	紧凑	0	16.8	5.30	1.1	4.49	筒形	黄	中
	浙甜922	半紧凑	0	20.2	5.60	2.4	4.50	长筒形	黄	长
	浙泰甜928	半紧凑	0	18.2	5.40	2.5	4.10	筒形	黄	长
	脆甜321	松散	0	17.6	5.70	1.2	3.81	筒形	白	长
	脆甜89	松散	1	16.2	5.70	2.3	3.31	筒形	黄	长
	脆白甜926	松散	0	18.1	5.10	1.8	3.60	长筒形	白	短
糯玉米	浙糯玉14	半紧凑	0	18.3	4.80	3.1	3.76	锥形	白	长
	浙糯玉18	半紧凑	0	15.0	4.50	1.5	2.76	锥形	白+红	长
	浙糯玉16	紧凑	0	17.3	5.30	2.4	3.80	筒形	白	中
	浙糯玉21	紧凑	2	15.8	4.90	3.2	4.60	锥形	白+红	长
	浙糯玉24	半紧凑	3	16.6	4.80	2.4	3.10	锥形	白	长
	红甜糯18	紧凑	0	15.6	4.40	1.6	2.80	锥形	红+白	长
	黑甜糯168	紧凑	0	19.5	4.70	4.2	3.54	长筒形	黑	中
	黑甜糯188	紧凑	0	18.6	4.90	1.1	3.59	筒形	黑	中

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