In the late of jointing and booting stage rice has highest dry matter productivity.
水稻在拔节孕穗后期干物质生产速率最大。
Effects of water stress on growth and yield of rice were studied in jointing-booting stage.
试验研究了拔节孕穗期水分胁迫对水稻生长发育及产量的影响。
The types of the 15 varieties might be considered into 6 types on the basis of their cold tolerance at booting stage.
根据这15份材料的孕穗期耐冷性特征，将它们的耐冷型划分成6类。
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