Specific leaf weight and nitrogen content had positive relation to the net assimilation rate. 比叶重和含氮量与净同化速率间存在正相关。
The biometric results demonstrated that there were significant differences among testing varieties in net assimilation rate and net photosynthetic rate. 生物统计结果表明，供试品种间净同化速率和净光合速率存在显著差异。
