施磷对限水灌溉小麦根冠及产量的影响研究

基金项目: 国家科技部特别支持项目和河北省农林科学院项目(A0105063)共同资助

Effects of P application on root-top characteristics and yield of wheat under water-limited condition

Institute of Genetics and Physiology,Hebei Academy of Agricultural and Forestry Sciences,Shijiazhuang 050051

摘要: 试验研究结果表明，盆栽限水灌溉时施P明显促进小麦幼穗、根系和株高的早期生长发育，而对叶片含水量和叶绿素含量的影响较小；施P明显提高小麦地上部干物质量和产量，且以限水处理效果最明显，提高了限水处理“温麦6”根干物质量以及“温麦6”和“冀麦36”穗数。
- 施P /
- 小麦 /
- 根冠 /
- 叶绿素 /
- 产量 /
- 限水灌溉
Abstract: The effects of P application on root-top characteristics and yield of pot-cultivated wheat under water．1imited condition are studied．The results show that P application stimulates significantly the development of fringe，root and plant height of wheat，however，has less influence on the contents of water and chlorophyll in leaves．P applicarlon increases obviously the top dry weight and yield，especially the root dry weight of‘CV．Wenmai 6’，and fringe number of‘CV．Wenmai6’and ‘CV．Jimai 36’at water-1imited condition．
- Papplication /
- Wheat /
- Root-top /
- Chlorophyll /
- Yield /
- Water-1imiting irrigation