不同播期条件下黄淮海区主推夏播玉米品种籽粒灌浆特性
以京农科728等18个黄淮海区主推夏播玉米品种为研究材料,设置6月10日(S1)、6月20日(S2)和6月30日(S3)共3个播期处理,研究夏播玉米品种在不同播期条件下的籽粒灌浆特性,以期为玉米品种选择及高产栽培提供参考和指导.结果表明:(1)成熟期百粒重在不同播期及品种间存在极显著差异,不同播期间表现为S1(35.20 g)>S2(33.45 g)>S3(31.38 g);不同品种间变幅为28.50 g(华美1号)~36.37 g(京农科728).(2)籽粒平均灌浆速率(Gave)在不同播期条件下表现为S1(0.74 g 100-grain-1 d-1)>S2(0.65 g...
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Published in | 作物学报 Vol. 47; no. 3; pp. 566 - 574 |
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Main Authors | , , , , , , , , , , , |
Format | Journal Article |
Language | Chinese |
Published |
北京市农林科学院玉米研究中心/玉米DNA指纹及分子育种北京市重点实验室,北京 100097
12.03.2021
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Subjects | |
Online Access | Get full text |
ISSN | 0496-3490 |
DOI | 10.3724/SP.J.1006.2021.03023 |
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Abstract | 以京农科728等18个黄淮海区主推夏播玉米品种为研究材料,设置6月10日(S1)、6月20日(S2)和6月30日(S3)共3个播期处理,研究夏播玉米品种在不同播期条件下的籽粒灌浆特性,以期为玉米品种选择及高产栽培提供参考和指导.结果表明:(1)成熟期百粒重在不同播期及品种间存在极显著差异,不同播期间表现为S1(35.20 g)>S2(33.45 g)>S3(31.38 g);不同品种间变幅为28.50 g(华美1号)~36.37 g(京农科728).(2)籽粒平均灌浆速率(Gave)在不同播期条件下表现为S1(0.74 g 100-grain-1 d-1)>S2(0.65 g 100-grain-1 d-1)>S3(0.57 g 100-grain-1 d-1),S1平均灌浆速率分别比S2、S3高0.09和0.17 g 100-grain-1 d-1,增幅分别为13.85%和29.82%;18个品种平均灌浆速率以京农科728(0.75 g 100-grain-1 d-1)最高,显著高于郑单958和先玉335(0.58 g 100-grain-1 d-1和0.67 g 100-grain-1 d-1),增幅为29.31%和11.94%.(3)不同播期间参试品种产量表现为S1(10,628.67 kg hm-2)>S2(10,207.65 kg hm-2)>S3(9144.59 kg hm-2),S1分别较S2、S3高4.12%、16.23%;S1与S2下产量相差不大.不同品种间,NK815、MC121、京农科729、MC812、京农科728和先玉335产量相对较高,平均为10,730.56 kg hm-2,显著高于郑单958(10,080.85 kg hm-2),增幅为6.44%.(4)相关分析表明,产量与平均灌浆速率(0.70**)、粒重(0.68**)呈极显著正相关;与活跃灌浆期(-0.36**)呈极显著负相关,而粒重与平均灌浆速率(0.58**)呈极显著正相关.因此,黄淮海区夏播玉米抢时早播有利于获得更高产量,玉米品种可选择种植中熟或中早熟、灌浆速率高、活跃灌浆期适中、产量水平较高的京农科728、京农科729、MC812、MC121、NK815和先玉335等.在播种较晚或积温不足地区,可选择种植中早熟、灌浆速度快的高产型品种京农科728,6月30日播种、10月16日达生理成熟,可实现玉米高产. |
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AbstractList | 以京农科728等18个黄淮海区主推夏播玉米品种为研究材料,设置6月10日(S1)、6月20日(S2)和6月30日(S3)共3个播期处理,研究夏播玉米品种在不同播期条件下的籽粒灌浆特性,以期为玉米品种选择及高产栽培提供参考和指导.结果表明:(1)成熟期百粒重在不同播期及品种间存在极显著差异,不同播期间表现为S1(35.20 g)>S2(33.45 g)>S3(31.38 g);不同品种间变幅为28.50 g(华美1号)~36.37 g(京农科728).(2)籽粒平均灌浆速率(Gave)在不同播期条件下表现为S1(0.74 g 100-grain-1 d-1)>S2(0.65 g 100-grain-1 d-1)>S3(0.57 g 100-grain-1 d-1),S1平均灌浆速率分别比S2、S3高0.09和0.17 g 100-grain-1 d-1,增幅分别为13.85%和29.82%;18个品种平均灌浆速率以京农科728(0.75 g 100-grain-1 d-1)最高,显著高于郑单958和先玉335(0.58 g 100-grain-1 d-1和0.67 g 100-grain-1 d-1),增幅为29.31%和11.94%.(3)不同播期间参试品种产量表现为S1(10,628.67 kg hm-2)>S2(10,207.65 kg hm-2)>S3(9144.59 kg hm-2),S1分别较S2、S3高4.12%、16.23%;S1与S2下产量相差不大.不同品种间,NK815、MC121、京农科729、MC812、京农科728和先玉335产量相对较高,平均为10,730.56 kg hm-2,显著高于郑单958(10,080.85 kg hm-2),增幅为6.44%.(4)相关分析表明,产量与平均灌浆速率(0.70**)、粒重(0.68**)呈极显著正相关;与活跃灌浆期(-0.36**)呈极显著负相关,而粒重与平均灌浆速率(0.58**)呈极显著正相关.因此,黄淮海区夏播玉米抢时早播有利于获得更高产量,玉米品种可选择种植中熟或中早熟、灌浆速率高、活跃灌浆期适中、产量水平较高的京农科728、京农科729、MC812、MC121、NK815和先玉335等.在播种较晚或积温不足地区,可选择种植中早熟、灌浆速度快的高产型品种京农科728,6月30日播种、10月16日达生理成熟,可实现玉米高产. |
Author | 刘月娥 刘春阁 刘秀芝 蔡万涛 赵久然 吕天放 张勇 邢锦丰 徐田军 陈传永 王荣焕 王元东 |
AuthorAffiliation | 北京市农林科学院玉米研究中心/玉米DNA指纹及分子育种北京市重点实验室,北京 100097 |
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Author_FL | XU Tian-Jun ZHAO Jiu-Ran LIU Chun-Ge LYU Tian-Fang CAI Wan-Tao LIU Xiu-Zhi LIU Yue-E ZHANG Yong CHEN Chuan-Yong WANG Yuan-Dong XING Jin-Feng WANG Rong-Huan |
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Title | 不同播期条件下黄淮海区主推夏播玉米品种籽粒灌浆特性 |
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