2008年石河子地区葡萄烂果病大发生原因调查研究

目的]明确2008年石河子地区葡萄烂果病大发生的主要原因.方法]通过田间调查、室内品种抗性鉴定与大田品种抗病性调查及实地了解病害发生整个过程中的田间管理措施,特别是激素使用次数和用量等,查阅相关气象资料,比较不同单位、不同年度间相关措施和烂果程度间的差异,从而找出引起烂果病大发生的主要原因.结果]2008年石河子地区葡萄烂果病发生最严重的品种是无核紫,激素使用次数过多和过量导致裂果,是诱发烂果病发生的主要原因,8月上旬的久旱遇雨对该病发生也有明显促进作用.结论]引起2008年石河子地区葡萄大量烂果主要与品种、激素使用过量和气候有关.

Study on the Dominant Cause of Grape Fruit Rot Disease in Shihhotze Region in 2008

【Objective】This study aimed to determine the main cause of grape fruit rot disease in Shihhotze region in 2008.【Method】The relationship were explored between fruit rot and grape varieties,dosage of hormones,climate element and cultivation practices by field investigation,evaluation of different grape varieties'resistance indoor and in field.【Result】The dominant cause of grape fruits rot is the redundancy of hormones dosage.And fruit rot was increased obviously also by plenty of rainfall in early August 2008 in Shihhotze region after a long drought.【Conclusion】The grape fruit rot outbreak in Shihhotze rgeion in 2008 were caused mainly by grape varieties,climate and over application of hormones during fruit enlargement.And the Monukka was the most susceptible.