影响陕北红枣产量和品质的因子分析

以陕北枣树的物候期为时段,根据陕北枣区多年的温度、降水、日照时数等气象因子和各年度红枣的产量和品质,研究了影响陕北红枣产量和品质的因子.结果表明,花期、幼果生长期和脆熟采收期的降雨是影响陕北红枣产量和品质的关键因子.花期和脆熟采收期过量降雨,常造成授粉不良和裂果烂果而影响红枣的产量和质量;幼果生长期降水偏少,则气候干旱,造成大量落果而影响红枣的产量和质量.

Meterological Factors Affecting Jujube-Yield and Quality of North Shaanxi

According to many years, average temperature, rainfall and duriation of sunshine and others meterologi-cal elements in the jujube cultivation region of north Shaanxi , and the jujube-yield and quality of different years, the paper deals with meterological factors affecting jujube-yield and quality. The results show that the rainfalls in the periods of flowering, young fruit-growing and fruit-maturing are key factors affecting the yield and quality. Excess rainfall during the flowering and maturing periods lowers the yield and quality, while it is too drought during the young fruit-growing period which has disadvantageous influence on the yield and quality. But adoptable high -temperature during the flower period has advantage effect on the yield.