2017年04期


王文霞,曾研华,曾勇军,梁喜欢,黄万,李晨曦,谭雪明,石庆华,潘晓华.机械穴直播早籼稻产量和品质形成的播期效应[J].江西农业大学学报, 2017, 39(04): 641-648. doi:http://dx.doi.org/10.13836/j.jjau.2017083

WANG Wen-xia,ZENG Yan-hua,ZENG Yong-jun,LIANG Xi-huan,HUANG Wan,LI Chen-xi,TAN Xue-ming,SHI Qing-hua,PAN Xiao-hua.Effect of Sowing Date on Yield and Quality of Early Indica Rice Grown by Mechanical Seeding[J].ACTA AGRICULTURAE UNIVERSITATIS JIANGXIENSIS, 2017, 39(04): 641-648. doi:http://dx.doi.org/10.13836/j.jjau.2017083

机械穴直播早籼稻产量和品质形成的播期效应

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梁喜欢
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黄万
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1 李晨曦 已出版文章查询
李晨曦
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谭雪明
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石庆华
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潘晓华
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+ 作者地址

1江西农业大学双季稻现代化生产协同创新中心/作物生理生态与遗传育种教育部重点实验室/江西省作物生理生态与遗传育种重点实验室, 江西南昌 330045

为揭示机直播下不同基因型早籼稻品种生育特性及产量形成的播期效应,研究播期对水稻产量及品质形成的影响,以冷敏感品种株两优819、中嘉早17和耐冷品种五丰优623、湘早籼6号为供试材料,设置提早播种(3月21日,S)和正常时期播种(4月5日,CK)2个处理。结果表明:提早15 d播种,不同类型早稻品种全生育期平均延长5 d,播抽历期平均推迟3.7 d,且秧苗出苗率降低,以冷敏感品种受播期影响效应高于耐冷品种;早播处理水稻产量总体低于正常播种处理;提早播种降低叶面积指数;与CK相比,早播处理降低稻米的出糙率、精米率、整精米率、直链淀粉含量和蛋白质含量,影响了淀粉粘滞特性,但增加了稻米的垩白率、垩白度与胶稠度,不利于稻米外观品质的改善。
语种:     中文   
基金:     国家重点研发计划(2017YFND0301605);国家自然科学基金项目(31760366);江西现代农业科研协同创...
关键词:     早籼稻 机械直播 播期效应 生育特性 产量 稻米品质

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