摘要
用缩节胺对中棉所23号进行了化控试验。结果表明：一水前三天化控对单株籽棉重、皮棉重、铃数、株高均有极显著的作用，对单株平均铃重，茎粗作用不大，衣分不受影响；一水前三天化控影响中棉所23号各性状的先后顺序是：第8节位第一果位节间长度、第9节位结铃数、第10节位的节间长度、11节位的单铃重，这种影响持续到植株顶部；打顶后化控只对很少节位果节长度和铃重有显著影响。中棉所23号一水前化控的量大会减产。
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.
出处
《塔里木农垦大学学报》
1998年第1期26-30,共5页
Journal of Tarim University of Agricultural Reclamation
关键词
棉花品种
中棉所23号
缩节胺
产量
空间分布
DPC
CRI 23
first watering
yield and morphological character
space distribution
