XIE Li-hua,GAO Hong,ZHANG Xiang-ying,et al.Study on the Main Agronomic Characters Affecting Dehydration of Maize Varieties for Machine Harvesting in Heilongjiang Province[J].HEILONGJIANG AGRICULTURAL SCIENCES,2020,(11):5-8.[doi:10.11942/j.issn1002-2767.2020.11.0005]
影响黑龙江省宜机收玉米品种脱水的主要农艺性状研究
- Title:
- Study on the Main Agronomic Characters Affecting Dehydration of Maize Varieties for Machine Harvesting in Heilongjiang Province
- Keywords:
- Heilongjiang Province; machine harvesting; maize variety; dehydration rate; agronomic characters
- 文献标志码:
- A
- 摘要:
- 为筛选适宜黑龙江省种植的宜机收玉米品种,2017和2018年对18个供试品种的脱水特性及主要农艺性状进行分析。结果表明:德美亚3号、东农266和益农玉10号生理成熟后脱水快。通过相关分析及逐步回归分析可知,茎粗、百粒重、粒型、穗粗、苞叶形态、株高和收获期7项指标协同控制脱水速率快慢,变量贡献度占75.30%,其中茎粗、百粒重和粒型是关键控制因素。
- Abstract:
- In order to screen machine-harvested maize varieties for planting in Heilongjiang Province,the dehydration characteristics and main agronomic characters of 18 varieties were determined in 2017 and 2018.The results showed that Demeiya No.3,Dongnong266 and Yinongyu No.10 dehydrated quickly after physiological maturation.Through correlation analysis and stepwise regression analysis,the dehydration rate was controlled by stem diameter,100-grain weight,grain type,ear diameter,bract shape,plant height and days of standing pole.The contribution of variables accounted for 75.30%.Among them,stem diameter,100-grain weight and grain type were the key controlling factors.
参考文献/References:
[1]李金霞,何长安,王海玲,等.黑龙江省玉米产业发展现状及展望[J].农业展望,2020(1):67-70.
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备注/Memo
收稿日期:2020-08-02