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割苗处理对春玉米生长发育的影响研究

发表时间:2018-02-11  浏览量:229  下载量:85
全部作者: 刘运涛,MARASINI Mukti,宗玉华,苏宝健,李磊,张凤路
作者单位: 盘古玉米割苗增产技术研究试验中心;河北农业大学农学院,河北省作物生长调控实验室
摘 要: 田间试验于2016 年在黑龙江省伊春市嘉荫农场进行。以德美亚1 为材料,在玉米5 可见叶期采用玉米割苗机进行玉米留1 叶和留2 叶处理,研究不同割苗处理对玉米生长发育及其产量的影响。结果表明,割苗处理显著降低了玉米株高,使玉米抽雄吐丝期延迟了4~5 d,但成熟期无明显变化。割苗处理显著提高了玉米的成穗率,增加了群体总穗数和果穗重,玉米产量比对照平均增加了15.3%. 研究表明,适当割苗处理对控制玉米株高、增加种植密度及提高玉米产量具有重要的理论与实践价值。
关 键 词: 作物栽培学;玉米;割苗;产量;生长发育
Title: Studies on the effects of seedling cut on growth and development of spring maize
Author: LIU Yuntao, MARASINI Mukti, ZONG Yuhua, SU Baojian, LI Lei, ZHANG Fenglu
Organization: Research Center of Pangu Maize Yield Increased by Seedling Cut; Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy
Abstract: Field experiment was conducted in Jiayin farm in Yichun, Heilongjiang province, in 2016. Two treatments of cutting seedling top with 1 leaf left or 2 leaves left with cutting machine at 5 visible leaf stage of maize with Demeiya 1 as material, and the effect of leaf cutting on growth and development and yield were studied. The results showed that maize plant height was significantly decreased by the treatment, and maize tasseling delayed 4-5 d, but no significant change in mature period. The ear-plant ratio, total ear numbers and ear weight of treated maize increased significantly, and the maize yield of treated maize was increased by 15.3% on average than the control. It is concluded that the proper cutting treatment has important theoretical and practical value for controlling the plant height, increasing the planting density and improving the yield of maize.
Key words: crop cultivation; maize; seedling cut; yield; growth and development
发表期数: 2018年2月第3期
引用格式: 刘运涛,MARASINI Mukti,宗玉华,等. 割苗处理对春玉米生长发育的影响研究 [J]. 中国科技论文在线精品论文,2018,11(3):212-216.
 
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