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播期对北方白菜型冬油菜生长发育及产量的影响
2016-10-19 11:13   审核人:

播期对北方白菜型冬油菜生长发育及产量的影响

Effect of sowing date on Brassica rapa growth and yield in northern China

【作者】 姜海杨孙万仓曾秀存方彦陈姣荣史鹏辉赵彩霞何丽

【Author】 JIANG Hai-yang1,SUN Wan-cang1,ZENG Xiu-cun1,2,FANG yan3, CHEN Jiao-rong1,SHI Peng-hui1,ZHAO Cai-xia1,HE Li1(1.Gansu Provincial Key Laboratory of Arid Land Crop Sciences,Lanzhou 730070,China;2.Hexi University, Zhangye 734000,China;3.Research and Testing Center of Gansu Agricultural University,Lanzhou 730070,China)

【机构】 甘肃省干旱生境作物学重点实验室河西学院甘肃农业大学测试研究中心

【摘要】 研究不同播期下北方旱寒区5个白菜型冬油菜品种的越冬率、生长发育、根冠比及产量构成因素的变化,分析了播期对白菜型冬油菜生长发育和产量的影响。结果表明,随着播期的推迟,白菜型冬油菜越冬率下降,播期与越冬率呈显著负相关;播期推迟7d,品种的出苗所需天数增加,出苗期推迟,全生育期缩短4~7d,干物质积累、根冠比下降,株高、单株角果数、千粒重、产量以及含油率均随着播期的推迟相应降低;试验表明适期早播对促进白菜型冬油菜的生长发育,提高越冬率,增加产量有重要作用。 

【Abstract】 Changes of wintering rate,growing development,root shoot ratio and yield characters of winter rapeseed(Brassica rapa L.) cultivars in northern cold and arid regions were analyzed with different sowing dates for high yield after cold winter in north of China.Results showed significant negative correlation between wintering rate and sowing date.With delayed sowing date,the wintering rate,dry matter,root shoot ratio,plant height,plant silique number,thousand-seeds weight,yield and oil content were all decreased.When sowing date delayed for 7 days,the seedling stage was prolonged,and the lifespan of the plant was shortened for 4 to 7 days.It indicated that appropriate early sowing could benefit and promote the growth and development as well as increase wintering rate and yield. 还原

【基金】 国家现代农业产业技术体系建设专项(CARS-13);国家行业科技项目(200903002-4);国家863计划专项(2011AA10A104)
  • 【分类号】S565.4
  • 【被引频次】6
  • 【下载频次】118
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