Low supply and uptake of k, adoption of modern cotton varieties particularly Bt transgenic cotton, and environmental stress are obvious contributors to potassium deficiency.
土壤供钾不足，钾吸收受抑，高产转基因棉花品种的应用以及不良环境因子的胁迫等是导致缺钾的重要原因。
A simple, cheap and efficient technique for identifying transgenic Bt cotton by using kanamycin as an identification marker in the field experiment was tested.
对转基因抗虫棉不同时期、不同叶片对卡那霉素不同浓度的反应及其与棉花抗虫性的关系进行了较系统的研究。
In addition, compared with Xinmian33B, Bt-transgenic hybrid cotton (CCRI29) had significant superiority in yield, especially in lint yield, which was above 23.68%.
与普通抗虫棉新棉33 ~ B相比，转基因抗虫杂交棉中棉所29表现具有明显的产量优势，皮棉产量增加高达23.68%。
In addition, compared with Xinmian33B, Bt-transgenic hybrid cotton (CCRI29) had significant superiority in yield, especially in lint yield, which was above 23.68%.
与普通抗虫棉新棉33 ~ B相比，转基因抗虫杂交棉中棉所29表现具有明显的产量优势，皮棉产量增加高达23.68%。
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