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1、
But there were obvious spring and strong photoperiodism spike cultivars . These need to improvement.
近期育成的大穗品种多有明显的春性化、强感光性, 需要加以改进.
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2、
What is the adaptive significance of photoperiodism during evolution?
在演化过程中生物或植物以光周期适应(环境)之意义为何?
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