桂林市异常气候条件对露地栽培西瓜生长和坐果的影响

Study of impact about growth and fruit setting of outdoor cropping watermelon in the conditions of Guilin abnormal climate

为减轻异常气候条件对露地栽培西瓜生长和坐果的影响,对桂林市雁山区嫁接西瓜进行全生育期种植跟踪调查,同时结合5-6月份气象观测数据进行分析研究。结果表明:阴雨寡照天气对西瓜全生育期、雌花授粉受精率、结果期的影响十分严重,直接导致西瓜的坐果率降低,影响当地西瓜产量和瓜农的经济效益。根据实际情况,对栽培技术的改进,达到保苗保花保果,使瓜农的西瓜产量和品质得到保证,最大限度的减少瓜农的经济损失。

To reduce the effect of abnormal climate conditions on the growth and fruit setting of outdoor cropping watermelon, we conduct the tracking survey for the whole growth period of planting grafted watermelon in Yanshan Region of Guilin City, combine with meteorological data analysis of the period from May to June, the results showed that rainy and sunless weather has serious impact on the follow factors of watermelon： whole growth period,female flowers pollination fertilization rate, fruiting period, which direct cause the reduced of fruit setting rate, and affect watermelon yield and local farmers＇ economic benefits.