Breeding, application potential evaluation and low-consumption and high-efficiency cultivation techniques of strong heterosis maize hybrid Yundan 26

doi:10.14088/j.cnki.issn0439-8114.2026.09.004

Abstract

Abstract: Yundan26 is a new maize hybrid bred with inbred line YML118 as the female parent and DSQ4 as the male parent. To clarify the varietal characteristics and popularization potential of Yundan 26, multi-parameters evaluations including mean yield, coefficient of variation, high-stability coefficient, adaptability parameter and regression coefficient were carried out based on the data of mountain-group regional trials and production trials of maize in Hubei Province during 2021-2022. Agronomic traits, stress resistance and kernel traits were comprehensively analyzed. The results showed that the grain yields of Yundan 26 reached 10 125.3 kg/hm² and 10 749.0 kg/hm² in the two-year regional trials and production trials, increasing by 7.6% and 9.6% compared with the control cultivar Huayu 11, respectively. Yundan 26 exhibited significantly better yield potential than the control, with high potential for increased production. In the two-year regional trials, the coefficient of variation for grain yield of Yundan 26 was slightly higher than that of the control, while its high-stability coefficients were greater. The adaptability parameters were close to 1 in both years, and the regression coefficients were 1.27 and 0.94, with an average value slightly higher than 1 and superior to the control. Comprehensive analysis indicated that Yundan 26 was a high-yielding, stable-yielding variety with favorable environmental adaptability. A two-factor split-plot design was adopted, with nitrogen application rate as the main-plot factor and planting density as the subplot factor to investigate their effects on grain yield and agronomic traits of Yundan 26. The results demonstrated that the rational combination of planting density and nitrogen fertilizer significantly improved maize yield. In Xingshan County of Yichang City, Hubei Province and similar ecological zones, the optimal planting density for Yundan 26 was 52 500 plants/hm², and the suitable topdressing rate of urea was 337.5 kg/hm² (seedling fertilizer∶panicle fertilizer = 1∶2). This combination maximized yield potential, achieving a grain yield of 14 948 kg/hm².

Key words: maize (Zea mays L.), strong heterosis hybrid, Yundan 26, breeding, application potential, cultivation technique

CLC Number:

S513

YU Chang-ping, HE Ya-hui, ZHOU Gang, PENG Jia-qing, CHEN Guang-yong, TANG Yu-cheng, YANG Hu, CHEN Qiang, YAN Xiang-ning, LI Yu-lu. Breeding, application potential evaluation and low-consumption and high-efficiency cultivation techniques of strong heterosis maize hybrid Yundan 26[J]. HUBEI AGRICULTURAL SCIENCES, 2026, 65(9): 17-23.

References

[1] 中华人民共和国统计局.中国统计年鉴2025[M].北京:中国统计出版社,2025.
[2] 张成鹏,涂圣伟,王恒,等.中国玉米产业发展现状、未来趋势及政策建议[J].中国经济报告,2025(3):64-72.
[3] 仇焕广,李新海,余嘉玲.中国玉米产业:发展趋势与政策建议[J].农业经济问题,2021(7):4-16.
[4] 李新河,黄宁.西南地区玉米产业现状与发展建议[J].农业研究与应用,2020,33(3):60-64.
[5] 潘光堂,杨克诚.我国西南地区玉米育种面临的挑战及相应对策探讨[J].作物学报,2012,38(7):1141-1147.
[6] 文姝蓉,王怡婷,钟钰,等.新一轮千亿斤粮食产能提升行动的路径研究[J].科技导报,2025,43(10):23-30.
[7] 高鸣,魏佳朔.新一轮千亿斤粮食产能提升的源泉:全要素生产率的增长与贡献[J].华中农业大学学报(社会科学版),2024(1):15-27.
[8] 余长平,周华平,叶青松,等.高产优质抗病玉米新品种达美5号的选育、特性分析及栽培技术[J].湖北农业科学,2024,63(9):1-5,41.
[9] 盖钧镒. 试验统计方法[J].北京:中国农业出版社,2007.6.
[10] 俞世蓉. 作物品种适应性和产量稳定性问题探讨[J].南京农业大学学报,1989,12(3):17-23.
[11] 俞世蓉. 一种计算简便的稳定性参数[J].种子,1986(12):124-125.
[12] 温振民,张永科.用高稳系数法估算玉米杂交种高产稳产性的探讨[J].作物学报,1994,20(4):508-512.
[13] 王江民,李雁.高稳系数法分析玉米新品种高产稳产性[J].玉米科学,1998,6(4):26-28.
[14] 范濂. 农业试验统计方法[M].郑州:河南科学技术出版社,1983.
[15] 李中青,李齐霞,宋殿珍,等.潞玉13玉米杂交种丰产性、稳产性及适应性分析[J].吉林农业科学,2008,33(1):7-9.
[16] 孙浩洋,刘飞,刘治先,等.高产·多抗玉米新杂交种天益青7096的选育与启示[J].安徽农业科学,2016,44(15):35-36.
[17] 马盼盼,胡占菊,高岭巍,等.玉米新品种濮单12的丰产稳产性分析[J].中国种业,2022(6):75-79.
[18] 王兵伟,时成俏,覃德斌,等.玉米品种丰产性和稳定性分析方法比较[J].种子,2009,28(1):105-108.
[19] 兰海,向勇,李芦江,等.玉米新品种川单99的选育与推广[J].玉米科学,2023,31(2):25-29.
[20] 田生昌,马建军,钱云德,等.种植密度与施氮量对宁夏玉米产量和氮肥肥效的影响[J].宁夏大学学报(自然科学版), 2014, 35(1):71-77.