低温与遮荫处理对3个春胡萝卜品种春化与生长发育的影响  

Influences of Low Temperature and Shading Light on Vernalization and Growth of Three Spring Carrot Varieties

作　　者：梁毅[1] 张洪伟[1] 谭武平 

机构地区：[1]北京市农林科学院蔬菜研究中心,北京100097

出　　处：《种子》2015年第4期20-22,共3页Seed

基　　金："十二.五"国家科技支撑项目(编号:2012 BAD 02 B 00);"十二.五"国家科技支撑项目(编号:2011 BAD 35 B 07);"十二.五"国家蔬菜品种创制的细胞与分子辅助选育系统构建(编号:2012 BAD 50 G 01);北京市农林科学院财政专项(编号:KJCX 20140111)

摘　　要：研究了不同低温与遮荫对3个春胡萝卜杂交种的春化与生长发育影响,并对不同品种耐低温与不同发育时期遮荫性能进行了比较。结果表明:不同时间处理下,3个品种耐低温抗抽薹能力顺序是红芯90>红芯95>早春红冠。生长前期不同遮荫处理对3个胡萝卜品种的叶色、株高、根长、单根质量、产量产生了显著影响,能使叶色变浅,株高显著增加,肉质根长度缩短,单根重量减少并降低产量,根的收尾率有所增加;生长中期不同遮荫处理对3个胡萝卜品种的株高、根长和收尾率没有显著影响,但使3个胡萝卜品种的单根质量和产量显著降低,遮光度增加影响作用加强。生长后期不同遮荫处理对3个胡萝卜品种的株高、根长没有显著影响,对单根质量、产量和收尾率有显著影响,胡萝卜的单根质量、产量和收尾率都随着遮光度增加显著减少,遮光越重影响越显著。In this paper,influences of different low temperatures and different shading treatments on vernalization and growth in three different spring carrot hybrid combinations are studied. The comparison of low temperature resistance and shading performance in different developmental stages between different varieties is carried too. The result shows that the low temperature and bolting resistance decreases gradually in the variety Hongxin90,Hongxin 95 and Zaochun Hongguan under different treatment time. Shading treatments of the early growth stage of the three varieties make the leaf color turn light,plant height increase significantly,root length turn short,root weight and yield reduce,and the closure rate increases too. There is no significant effect on the plant height,root length and closure rate in the middle growth stage of the three varieties,but the root weight and yield reduces significantly,and the shading degree increase the reduction effort. During the late growth stage,the plant height and root length of the three carrot varieties show no significant effects either,but the root weight,yield and closure rate are significantly reduced with the shading degree increasing.

关 键 词：春胡萝卜 低温 遮荫 春化 生长发育 

分 类 号：S631.2[农业科学—蔬菜学]