摘要
以陆地棉(GossypiumhirsutumL.)新陆早1号为材料,研究了缩节胺(DPC)在宁夏灌区的应用效果。结果表明,DPC在喷施后7~30d内可提高棉叶的叶绿素含量和光合速率,改善群体结构,提早开花结铃,增加早期铃数、提高霜前花率和皮棉产量。以蕾期。
DPC(N,Ndimthyl piperidinium chloride) applying effect on upland cotton ( G.hirsutum L.) planted in Ningxia irrigated area was studied. Results showed that DPC could promote the increase of total chlorophyll content in the cotton leaf, especially for chlorophyll a and b in 7 to 30 days after spraying. The application of DPC could increase the photosynthetic rate of leaves,regulate structure of the cotton plants, promote early flowering and boll setting, increase the number of early boll and the percentage of cotton harvested before frosting and cotton yield. The best effect resulted from twice of spraying in square appearing and flowering period.
出处
《西北农业学报》
CAS
CSCD
1997年第1期81-83,共3页
Acta Agriculturae Boreali-occidentalis Sinica
关键词
棉花
产量
纤维品质
缩节胺
DPC
Cotton
Cotton yield
Fibre quality