CAJ | 학술논문

以5个籼稻品种为材料,通过抽穗期高温处理和离体花粉萌发等试验,研究了开花期高温对水稻花粉萌发和结实的影响.结果表明,不同品种水稻对高温处理的敏感度明显不同,其中品种黄华占在高温处理4 d后的花粉萌发率达到70%以上,在高温处理7 d后小穗结实率仍保持50%左右,其他4个品种的花粉萌发率和小穗结实率都明显低于黄华占,由此认为,黄华占是一个耐热性较强的品种.
이5개선도품충위재료,통과추수기고온처리화리체화분맹발등시험,연구료개화기고온대수도화분맹발화결실적영향.결과표명,불동품충수도대고온처리적민감도명현불동,기중품충황화점재고온처리4 d후적화분맹발솔체도70%이상,재고온처리7 d후소수결실솔잉보지50%좌우,기타4개품충적화분맹발솔화소수결실솔도명현저우황화점,유차인위,황화점시일개내열성교강적품충.
Effect of high temperature on pollen germination and seed setting of five rice cultivars during heading period was investigated.The results showed that the pollen germination rate of Huanghuazhan under high temperature for 4 d was above 70%,and its seed setting rate under high temperature 7 d was about 50%,while the other cultivars had lower pollen germination rates and seed setting rates.Therefore,Huanghuazhan is a heat-tolerant cultivar.