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适宜机械粒收玉米品种脱水特性及相关性状研究
Study on kernel dehydration characters and correlative traits of suitable mechanical grain harvest maize varieties
投稿时间:2017-11-30  最后修改时间:2017-12-15
中文关键词:玉米  籽粒含水率  脱水速率  机械粒收
英文关键词:Maize  kernel moisture content  dehydration rate  mechanical grain harvest
基金项目:国家重点研发计划资助(2017YFD0101103),辽宁省中央引导地方科技发展专项资助(2017011541-301)
作者单位E-mail
贾琳 沈阳农业大学 onlyajoker@163.com 
李凤海 沈阳农业大学 lifenghai@126.com 
刘珈伶 沈阳农业大学  
于阳雪 沈阳农业大学  
吕香玲 沈阳农业大学  
王宏伟 沈阳农业大学  
朱敏 沈阳农业大学  
杜万里 沈阳农业大学  
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中文摘要:
      本研究以5个不同熟期玉米杂交种为试验材料,通过玉米籽粒含水率、脱水速率及相关性状测定,比较不同玉米品种脱水等性状。试验结果表明,适合粒收品种华美1号与其他品种相比,具有生育期短(123d),含水率低,生理成熟后脱水速率快(0.75%/d)和果皮薄(0.67μm)等特点,2016年生理成熟和收获时含水率分别为32.25%和20.20%,2017年分别为35.28%和17.47%。相关分析结果表明,籽粒脱水速率与果皮厚度呈极显著负相关,相关系数为-0.975;与苞叶脱水速率和含水率呈显著相关,相关系数分别为0.935和-0.950,与其他性状相关性不显著。
英文摘要:
      In this study, five different maturity maize hybrids were selected as experimental materials,by measuring kernel moisture content、dehydration rate and other related traits ,compared with different maize varieties dehydration and other traits.The results showed that the HUAMEI 1 suitable for mechanical grain harvest was characterized by shorter growth period(123d), lower moisture content ,faster dehydration rate after physiological maturity(0.75%/d)and thin pericarp(0.67μm) than other varieties,the kernel moisture content of physiological maturity and harvest were 32.25% and 20.20% respectively in 2016,are respectively 35.28% and 17.47% in 2017.Correlation analysis results show that the kernel dehydration rate was significantly negative correlated with the pericarp thickness ,the correlation coefficient was -0.975 ;the husk dehydration rate and moisture content were significantly correlated with kernel dehydration rate,the correlation coefficient were 0.935 and -0.950 respectively,the correlation with other traits was not obvious.
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