The source-sink relationship of dry matter accumulation exists among corm, the first grade cormels and the second cormels.
球茎发育过程中，各级球茎干物质积累存在库源关系。
The grain-leaf area ratio was a quantitative expressing way to evaluate the coordinative level of source-sink relationship and was taken as a comprehensive index to select the variety of high yield.
粒叶比是衡量源库关系是否协调的一种数量化表示方法，被作为筛选高产品种的综合指标。
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