论文部分内容阅读
把离体稻穗分别放置于0℃、10℃、20℃、30℃等温度中,存放不同时间后取出,在室温下观察CO_2诱导颖花的开颖率,测定颖花的生理活性及花粉生活力。结果表明:随着贮穗温度的升高或存放时间的延长,颖花的呼吸强度、ATP含量、开颖率、花粉生活力均表现为下降趋势。放在10℃左右温度中贮藏的稻穗,能较好地保持开颖能力、花药的开裂能力及花粉的生活力。此项技术可应用于水稻杂交。
The in vitro panicles were placed at 0 ℃, 10 ℃, 20 ℃, 30 ℃, respectively, and stored at different times. The open ratio of CO 2 -induced spikelets was observed at room temperature. The physiological activities of pollen and pollen Vitality. The results showed that the respiration rate, ATP content, opening percentage and pollen viability of spikelets showed a downward trend with the increase of storage spike temperature or storage time. Rice stored in a temperature of about 10 ℃ can better maintain open ability, anther cracking ability and pollen viability. This technique can be applied to rice hybridization.