| 寒地稻瘟病菌空中捕捉量与田间稻瘟病发病和气象因子的关系 |
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| 引用本文： | 宋成艳,王桂玲,刘乃生,周雪松.寒地稻瘟病菌空中捕捉量与田间稻瘟病发病和气象因子的关系[J].黑龙江农业科学,2011(9):39-41. |
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| 作者姓名： | 宋成艳 王桂玲 刘乃生 周雪松 |
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| 作者单位： | 黑龙江省农业科学院佳木斯水稻研究所,黑龙江佳木斯,154026 |
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| 基金项目： | “十一五”国家科技支撑计划资助项目，黑龙江省科技攻关重大资助项目 |
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| 摘 要： | 为及时掌握稻瘟病菌发生的时空动态,有效控制病害发生,采用固定式孢子捕捉器对水稻品种空育131空中稻瘟病菌孢子量与田间稻瘟病发病关系及其与气象因子的关系进行了研究。结果表明：空中孢子的捕捉数量与叶瘟的发病率呈正相关,相关系数为0.848 4。每个检测单位（检测面积为18 mm×18 mm视野内的孢子数量）稻瘟菌孢子数量达...
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| 关 键 词： | 寒地 稻瘟病 孢子量 孢子捕捉 田间病情 气象因子 |
Relationship of the Amounts of Germs of Rice Blast Caught in the Air with the Incidence of Rice Blast in the Field and the Meteorological Factors in Cold Region |
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| SONG Cheng-yan,WANG Gui-ling,LIU Nai-sheng,ZHOU Xue-song.Relationship of the Amounts of Germs of Rice Blast Caught in the Air with the Incidence of Rice Blast in the Field and the Meteorological Factors in Cold Region[J].Heilongjiang Agricultural Science,2011(9):39-41. |
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| Authors: | SONG Cheng-yan WANG Gui-ling LIU Nai-sheng ZHOU Xue-song |
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| Institution: | SONG Cheng-yan,WANG Gui-ling,LIU Nai-sheng,ZHOU Xue-song(Jiamusi Rice Research Institute of Heilongjiang Academy of Agricultural Sciences,Jiamusi,Heilongjiang 154026) |
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| Abstract: | Adopting the fixed type spore catcher to monitor the amount of the Pyricularia oryzae in the air,the relationship of the amount of rice blast spores in the air of Kongyu 131 with the incidence of rice blast and meteorological factors was studied. The results showed that it was positive correlation between the amount of spores caught in the air and the incidence of leaf blast with a correlation coefficient of 0. 848 4. The amount of the Pyricularia oryzae spores in each testing unit（the amount of the spore envisaged in the area of 18 mm× 18 mm）came up to one or two,which would be used as parameter to chemical control against the leaf blast. It also showed that there was a positive correlation between the amount of the spores and the average tempera- ture,with a correlation coefficient of 0. 181 0, while there was a negative correlation between the rainfall and the amount of the spores whose correlation was -0. 342 1. Meantime,the amount of the spores and the air relative humidity was positively correlated,and the correlation coefficient was 0. 120 3. But it was negatively correlated with the wind speed with a correlation coefficient of -0. 227 5. |
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| Keywords: | cold region Pyricularia oryzae Cavara amount of spore spore trapping field condition meteorological factors |
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