bark disease
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According to the relationship between the state of the disease of bark necrosis caused Valsa sordida and period of the disease with average temperature,relative humidity,total rainfall,ratio of temperature to humidity,ratio of humidity to rainfall,to computer results,the forecast model of multivariate linear regression is established in the light of multiplicative statistics methed.
根据杨树烂皮病的病情与不同发病时期的平均温度、相对湿度、总降雨量、温湿比、湿雨比的关系,通过电子计算机计算的结果,应用多元统计方法,建立了多元线性回归预报模型。
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The influences of load and fertilization level on apple rough bark disease occurrence and its rule and condition were studied.
1997~2000年开展了负载量、施肥水平对苹果轮纹病的影响试验,并对辽宁省苹果轮纹病发生规律及条件进行了调查研究。
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The results showed that the lower the ratio of branch to fruit was,the higher loads the tree had,which resulted in the apple rough bark disease.
结果表明,枝果比过小导致负载量过大,加重轮纹病的发生,枝果比(5~6)∶1的病情指数较低,且有较高的产量和较好的质量。
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Wasof disease, pest bark should be completely clear to park outside the deeply buried or burned.
被刮下的病、虫树皮,应清除到园外彻底深埋或烧毁。
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A significant correlation existed between disease severity and bark relative water content.
枝条树皮相对含水量与病害程度显著相关。
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maple bark disease:枫皮症
\\"枫皮症\\",\\"maple bark disease\\" | \\"消瘦,虚弱\\",\\"maransis,marasmus\\" | \\"消耗性,虚弱的\\",\\"marantic\\"