摘要
本试验于1987、1988两年,利用红外CO_2气体分析仪研究了不同枣树品种的光合特性.枣树的光补偿点为400～1200Lx,光饱和点为30～43KLx,光合速率为6～16mgCO_2·dm^(-2)·h^(-1),品种间差异显著.枣树光合速率的年变化、日变化均为双峰曲线,中午有明显的“午休”现象.
The photosynthetic characteristics of different varieties of Chinese jujube (Z, jujube mill) were studied with infra-red CO2 analyser from 1987 to 1988. The range of the light compensation points was from 400 to 1200Lx,that of the light saturation points was from 30 to 43 KLx, and that of the photosynthetic rates was from 6 to 16 mg CO2dm-2·h-1, there are significant differences among the testing cultivars. The year change and the daily change of the photosynthetic rates were all double peak curve, the appearance of 'midday nap' is clear.
出处
《华北农学报》
CSCD
北大核心
1990年第2期65-70,共6页
Acta Agriculturae Boreali-Sinica
关键词
枣树
光合作用
光饱和点
光补偿点
Chinese jujube
Photosynthesis
Light compensation point
Light saturation point
Photosynthetic rate
