CAJ | 학술논문

[目的]为预防水稻稻曲病提供参考.[方法]根据2008年8月中旬成都平原西部稻田实地调查资料,结合2008年7月下旬和8月上旬的气候条件,对成都平原水稻稻曲病发生流行的原因进行了分析.[结果]2008年7月下旬和8月上旬水稻抽穗扬花期成都市气温持续下降,7月底～8月上旬气温降至25 ℃以下;2008年7月下旬～8月上旬成都市各测站有雨日为14 d左右,8月上旬中期以后,空气相对湿度在90%以上,日照时数只接近常年平均值的1/2,植株同化作用减慢,呼吸量减少,组织柔嫩,抗病力降低.[结论]适宜的气候条件是水稻稻曲病发生流行的主要原因.
[목적]위예방수도도곡병제공삼고.[방법]근거2008년8월중순성도평원서부도전실지조사자료,결합2008년7월하순화8월상순적기후조건,대성도평원수도도곡병발생류행적원인진행료분석.[결과]2008년7월하순화8월상순수도추수양화기성도시기온지속하강,7월저～8월상순기온강지25 ℃이하;2008년7월하순～8월상순성도시각측참유우일위14 d좌우,8월상순중기이후,공기상대습도재90%이상,일조시수지접근상년평균치적1/2,식주동화작용감만,호흡량감소,조직유눈,항병력강저.[결론]괄의적기후조건시수도도곡병발생류행적주요원인.
[Objective]The study was to provide the reference for precluding rice false smut.[Method]According to the field survey data from rice field in western Chengdu in the second ten days of August in 2008 and the climate condition in the last ten days of July and the first ten days of August in 2008.The cause of occurrence and epidemic of rice false smut in Chengdu plain was analyzed.[Result]The temperature of Chengdu in the last ten days of July and the first ten days of August (heading and flowering period of rice) in 2008 was decreased continuously,and it was lower than 25 ℃ from the end of July to the first ten days of August.The rain days from the last ten days of July to the first ten days of August in Chengdu was about 14 d.After middle stage of the first ten days of August,the air relative humidity was above 90% and the sunshine hour was only close to 1/2 of that in normal year.So the assimilation of the plants became slower and their respiration rate was reduced and their disease resistance was decreased with tenella tissue.[Conclusion]The suitable climate condition was the main cause of occurrence and epidemic of rice false smut.