【摘要】 广西钦州2022年1月29日至2月23日持续低温阴雨寡照天气，之后又出现了1个多月高温少雨天气过程。通过对钦州主要荔枝栽培品种成花过程跟踪观测和实地调查，发现低温阴雨寡照天气直接影响荔枝花芽萌动和抽穗开花，导致荔枝成花明显偏迟、花穗短小、花质差、开花节奏改变、花期短等不良后果。春季后期连续高温少雨天气，造成中、晚熟荔枝品种出现严重“冲梢”现象，影响花穗质量和坐果率。针对异常天气对荔枝开花结果的影响，提出几点促花保花保果应对技术措施，为今后做好荔枝春季花期管理工作提供参考。更多还原

【Abstract】 Qinzhou City, Guangxi experienced continuous low temperature, overcast and rainy weather, and followed by more than one month of high temperature and little rain weather from January 29, 2022 to February 23, 2022. Through the tracking observation and field investigation of the flower-forming process of the main litchi cultivars in Qinzhou City, it was found that the weather of low temperature, overcast rain and lack of illumination directly affected the budding and flowering of litchi, which led to the obvious late flowering, short flower spike, poor flower quality, change of flowering rhythm and short flowering period. The continuous high temperature and little rain weather in late spring resulted in serious "rush shoot" phenomenon of middle and late ripening litchi varieties,which affected the quality of panicle and fruit setting rate. In view of the influence of abnormal weather on flowering and fruiting of litchi, some technical measures to promote flowering and preserve flowers and fruits of litchi were put forward to provide a reference for the management of flowering period of litchi in spring in the future.更多还原