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辽宁制种基地玉米杂交种种子收获期与种子活力关系

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2013~ 2015年,以马齿型玉米杂交种郑单958(郑58×昌7-2)、辽单565(中106×辽3162)和硬粒型玉米杂交种先玉335(Ph6wc×Ph4cv)为试材,在辽宁地区进行杂交制种.在授粉后35 d后每隔3d不同收获期采集果穗,对不同品种、不同收获期种子子粒水分、百粒重、标准发芽率、人工加速老化、冷发芽及田间出苗率进行比较研究,评价种子活力.结果表明,在辽宁地区制种,辽单565在授粉后44~53 d收获的种子能够达到较高的活力水平;郑单958在授粉后47~56 d收获能够达到较高的活力水平;先玉335在授粉后44~56d收获能够达到较高的活力水平.比目前生产收获期提前10d左右收获,可有效回避天气灾害对玉米种子质量的影响.
Relationship Between Seed Harvest Period and Seed Vigoron Maize in Liaoning Seed Production Area
A maize production experiment was carried out with the dent maize hybrids Zhengdan958(Zheng58/Cang7-2),Liaodan565(Zhong106/Liao3162) and the flint maize hybrids Xianyu335(Ph6wc/Ph4cv) in Liaoning province from 2013 to 2015.Taken samples every 3 days started from 35 days after pollination.To evaluate the seed vigor,we compared the kernel moisture,100-seed weight,standard germination tests,accelerated aging germination,cold test and field investigations with the three different breeds and different maturation stages.The result indicated that the suitable harvest period for high vigor seed of Liaodan565 was 44-53 days after pollination,zhengdan958 was 47-56 days after pollination,and Xianyu335 was 44-56 days after pollination in the Liaoning seed production area.About 10 days before usual harvesting to prevent frost damage on seed quality in Liaoning.

MaizeHarvest timeSeed vigorMaturity

郝楠、李月明、王建华、毕文博、马云祥、孙楠、王延波

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辽宁省农业科学院玉米研究所,沈阳110161

中国农业大学农学与生物技术学院,北京100193

玉米 收获期 种子活力 成熟度

农业部行业专项

201303002

2017

玉米科学
吉林省农业科学院 国家玉米工程技术研究中心(吉林) 国家玉米改良中心 中国农业科技东北创新中心

玉米科学

CSTPCDCSCD北大核心
影响因子:1.163
ISSN:1005-0906
年,卷(期):2017.25(2)
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