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1 抽穗不开花期,保持系高粱的无柄小穗饱满,用手能挤出黄色花药;不育系高粱的无柄小穗是瘪的,用手挤不出花药。
1 Flowering Not flowering, keeping sessile spikelets full of sorghum, yellow anthers can be squeezed by hand; sterile spikelets of sorghum are shriveled and crowded with anthers.