中国蔬菜 ›› 1997, Vol. 1 ›› Issue (2): 1-0.

• 研究论文 •    下一篇

苗期夜温对番茄畸形果发生的影响

李天来; 王平; 须晖; 郭泳; 孙国娟; 陈伟之;   

  1. 沈阳农业大学;
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1997-03-20 发布日期:1997-03-20

Effects of Night Temperature in Seedling Stage on the Occurence of Malformed Tomato Fruit

Li Tianlai; Wang Ping; Xu Hui et al.   

  1. Shenyang Agricultural University; 110161
  • Received:1900-01-01 Revised:1900-01-01 Online:1997-03-20 Published:1997-03-20

摘要: 试验表明番茄苗期低夜温不仅提高了畸形果发生率,而且也提高了畸形果平均级数和综合指数,并增加了畸形果的类型,同时乱形果在畸形果中所占的比例也增大。试验还认为:引起番茄畸形果大量发生的界限温度在大于6℃和小于12℃的范围内,低温所需时间为幼苗2片子叶充分展开后10~16天,幼苗低温敏感期为2~4片真叶展开期。因此,番茄育苗期间应避免2~4片真叶展开期夜温低于12℃。

关键词: 番茄, 畸形果, 温度

Abstract: The results indicated that low night temperature in tomato seedling stage increased incidence,average grade and intergated index of malformed fruit,as well as the types of them. It was found that the critical temperature which induced high incidence of malformed fruit was between 6~12℃,the 10th~16th days after the two cotyledons fully expanded. The susceptible period for low temperature was at the stage of the 2nd~4th true leaves fully expanded. Therefore,tomato seedlings with 2~4 true leaves must be kept a...