论文部分内容阅读
采用玻片捕捉并经逐步回归法分析 ,结果表明病菌日孢子量与日降水量呈极显著正相关 ,与日平均温度呈显著正相关。郑州地区多于 6月中旬前后孢子初现 ,喷药始期从 5月上旬改为 6月上中旬后 ,可减少施药 2～ 3次但对药效无明显影响 ,其处理的病果率均无显著性差异。
Using slide-capture and stepwise regression analysis, the results showed that there was a significant positive correlation between the amount of daily spores and the daily precipitation and a significant positive correlation with the daily average temperature. In spite of the emergence of spores in Zhengzhou area before and after mid-June, the initial spraying period changed from early May to the middle of June, which could reduce the application of pesticides by 2 or 3 times without any significant effect on the efficacy. No significant difference.