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CO_2含量大于5%的气体,或者 pH 小于5.6的 CO_2溶液,或0.05mol/L 以上的碳酸盐与稀酸的反应液,都能显著地促进水稻开颖。诱导开颖的处理时间约20秒。浓度增高和处理时间加长却不能进一步增进开颖数。温度增高可促进 CO_2诱导开颖过程,呼吸抑制剂也不会中断这个过程。CO_2促进鳞片吸水膨大是促进开颖的原因。被处理的稻穗裂药及花粉活力正常。此项技术可应用于水稻杂交工作。
The gas with CO 2 content greater than 5%, CO 2 solution with pH less than 5.6, or the reaction solution with carbonate and dilute acid above 0.05 mol / L can significantly promote rice opening. Induced open processing time of about 20 seconds. Higher concentration and longer treatment time can not further improve the open number. Increased temperature can promote CO_2-induced open process, respiratory inhibitors will not interrupt the process. CO 2 to promote the expansion of the scale water is to promote the opening of the reason. The processed rice cracker and pollen were normal. This technology can be applied to the work of rice hybrids.