Water deficit at jointingstage affected mostly dry matter accumulation.
拔节期水分亏缺对干物质累积量影响最大。
2
The suitable time of the chemical spraying should be among the standing to jointingstage.
喷施时期宜在小麦起身期和拔节期。
3
At each stage of fertility, with the increase of CO_2 concentration, stomatal conductance decreased, the largest drop in jointingstage, the smallest in tillering stage.