本文主要研究内容
作者朱海霞,姜丽霞,吕佳佳,王萍,王铭,李秀芬（2019）在《淹水胁迫对寒地水稻产量构成因子的作用》一文中研究指出：黑龙江省现为我国最大的水稻产区和商品稻区,但河流众多,且夏季多大雨、暴雨,较易形成涝灾。为了研究洪涝灾害对寒地水稻产量的影响,于2018年通过田间淹水试验,分析寒地水稻关键生育期不同淹水深度、淹水历时造成的产量因子差异。方差分析表明:3个主栽水稻品种在拔节期、抽穗开花期和乳熟期遭遇淹水后,产量因子在发育期间、淹水深度或淹水历时间存在显著或极显著差异(P<0.05),较深的淹水及较长的淹水历时易使产量因子显著下降;经LSD比较,于拔节期淹水后的千粒重和理论产量,于抽穗开花期淹水后的结实率显著最低;没顶淹没的结实率、千粒重和理论产量显著最低;7天的淹水历时易造成千粒重的显著下降;抽穗开花期水稻在没顶淹没(3/3h)及7天淹水历时的结实率估算值仅为70.9%,拔节期水稻在没顶淹没(3/3h)及7天的淹水历时下千粒重估算值仅为17.5g,拔节期水稻在没顶淹没(3/3h)及7天淹水历时下产量最低。绥粳18经淹水处理后,产量和结实率均有不同程度的下降,拔节期和抽穗开花期没顶淹没下的产量损失约43.4%-78%,而在较低的淹水深度或较短的淹水历时下水稻表现出较强的抗胁迫性,产量损失较少;乳熟期水稻对淹水胁迫表现出较差的抗胁迫性,产量损失多为23%以上;淹水胁迫造成的产量损失与水稻叶面积指数下降有关,绥粳18经淹水后多数处理的LAI比对照低,且下降的时期多集中于孕穗、抽穗和扬花的生殖关键阶段,对产量构成因子产生不利影响。
Abstract
hei long jiang sheng xian wei wo guo zui da de shui dao chan ou he shang pin dao ou ,dan he liu zhong duo ,ju xia ji duo da yu 、bao yu ,jiao yi xing cheng lao zai 。wei le yan jiu hong lao zai hai dui han de shui dao chan liang de ying xiang ,yu 2018nian tong guo tian jian yan shui shi yan ,fen xi han de shui dao guan jian sheng yo ji bu tong yan shui shen du 、yan shui li shi zao cheng de chan liang yin zi cha yi 。fang cha fen xi biao ming :3ge zhu zai shui dao pin chong zai ba jie ji 、chou sui kai hua ji he ru shou ji zao yu yan shui hou ,chan liang yin zi zai fa yo ji jian 、yan shui shen du huo yan shui li shi jian cun zai xian zhe huo ji xian zhe cha yi (P<0.05),jiao shen de yan shui ji jiao chang de yan shui li shi yi shi chan liang yin zi xian zhe xia jiang ;jing LSDbi jiao ,yu ba jie ji yan shui hou de qian li chong he li lun chan liang ,yu chou sui kai hua ji yan shui hou de jie shi lv xian zhe zui di ;mei ding yan mei de jie shi lv 、qian li chong he li lun chan liang xian zhe zui di ;7tian de yan shui li shi yi zao cheng qian li chong de xian zhe xia jiang ;chou sui kai hua ji shui dao zai mei ding yan mei (3/3h)ji 7tian yan shui li shi de jie shi lv gu suan zhi jin wei 70.9%,ba jie ji shui dao zai mei ding yan mei (3/3h)ji 7tian de yan shui li shi xia qian li chong gu suan zhi jin wei 17.5g,ba jie ji shui dao zai mei ding yan mei (3/3h)ji 7tian yan shui li shi xia chan liang zui di 。sui jing 18jing yan shui chu li hou ,chan liang he jie shi lv jun you bu tong cheng du de xia jiang ,ba jie ji he chou sui kai hua ji mei ding yan mei xia de chan liang sun shi yao 43.4%-78%,er zai jiao di de yan shui shen du huo jiao duan de yan shui li shi xia shui dao biao xian chu jiao jiang de kang xie pai xing ,chan liang sun shi jiao shao ;ru shou ji shui dao dui yan shui xie pai biao xian chu jiao cha de kang xie pai xing ,chan liang sun shi duo wei 23%yi shang ;yan shui xie pai zao cheng de chan liang sun shi yu shui dao xie mian ji zhi shu xia jiang you guan ,sui jing 18jing yan shui hou duo shu chu li de LAIbi dui zhao di ,ju xia jiang de shi ji duo ji zhong yu yun sui 、chou sui he yang hua de sheng shi guan jian jie duan ,dui chan liang gou cheng yin zi chan sheng bu li ying xiang 。
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论文作者分别是来自自然灾害学报的朱海霞,姜丽霞,吕佳佳,王萍,王铭,李秀芬，发表于刊物自然灾害学报2019年05期论文，是一篇关于淹水试验论文,产量论文,洪涝论文,水稻论文,自然灾害学报2019年05期论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自自然灾害学报2019年05期论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：淹水试验论文; 产量论文; 洪涝论文; 水稻论文; 自然灾害学报2019年05期论文;