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开花期是果树作物关键的物候期之一。研究果树开花期与气象条件的相互关系,对生产和科研都有一定价值,尤其是能拟出一个合适的花期预测式,正确的预报花期,对花期打药,花期人工授粉,杂交育种,疏花疏果等作业计划的制定和准备可提供依据。果树的花期预报在国外早已引起有关部门和科学工作者的重视,目前很多国家都根据各地花期和气象条件之间的定量关系做出了花期预报式,及时对花期进行预报。如日本气象所就把花期预报作为一项正常的农业气象服务项目,每到花前一定时期,就根据各地花期预测式做出全国各地的花期预报。我国近几年也逐渐开始了对这项
Flowering is one of the key phenophases of fruit trees. Research on the relationship between flowering and meteorological conditions of fruit trees is of great value to both production and scientific research. In particular, it is possible to draw a suitable and predictive flowering period for flowering, artificial pollination during flowering, crossbreeding, Boring and other operations planning and preparation can provide the basis. Flowering forecast of fruit trees in foreign countries has already drawn the attention of relevant departments and scientists. At present, many countries make flowering forecast according to the quantitative relationship between flowering and meteorological conditions in various places and forecast the flowering in time. For example, the Japan Meteorological Observatory put flowering forecast as a normal agrometeorological service project, and it will forecast the flowering period of all parts of the country according to the forecast of flowering period around each time before reaching the pre-flowering date. In recent years, our country has gradually started this