译 名：
Effeet of DPC on Yield and Space Distribution of morphological characters of CRI 23
作 者：
Mei Yongjun et al(Dept. of Agronomy, TlmARU, Alar, Xinjiang, 843300 )
关键词：
DPC, CRI 23, first watering, yield and morphological character, space distribution
摘 要：
Chemical control experiment was conducted on CRI 23 to study the effect of DPC (N, N-dimthyl piperidinium chioride ). Results showed that DPC' sapplication three day before first watering had significant effeet on unginned cotton weight, ginned cotton weight, boll number, and plant height,of per plant, while a little effect on boll weight and stem diameter and no cffcct on ginning outturn. Chcmical control cffcct of DPC on various characters of CRI 23 three-day before first watering in succession were :the internodal lenth of first fruit at the 8th node,boll number at the 9th node,internodal lenth at the 10th node per boll weight at the 11th node. Such effect sustained up till to the top. Chemical control after pruning only strongly affected internodal lenth and boll weight at a few nodes. Excessive amount of DPC reduced the yield of CRI 23three-day before first watering.
