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通过对高山区(云南省广南县)油茶(Camellia oleifera)落果原因的初步调查与分析,结果发现:导致油茶落果主要有3方面的原因,一是生理落果(在油茶开花时,温度过高和过低或雨量过多不利于对花粉萌发及受精,导致前期大量落果;二是土壤水分、养分供应失调,导致果实在成熟前大量落果;三是病虫害引起落果(油茶籽象甲及果实炭疽病是影响落果的主要病虫害)。本文就其原因作初步调查分析,为油茶高效栽培提供理论依据。
Through the investigation and analysis of the causes of deciduous fruit in Camellia oleifera in Guangnan County of Yunnan Province, the results showed that there are mainly three reasons leading to the decolourization of Camellia oleifera. One is physiological decleeding (when the tea came into being, the temperature was too high And too low or too much rainfall is not conducive to the germination and fertilization of pollen, leading to a large number of early fruit drop; Second, soil moisture, nutrient supply disorders, leading to a large number of fruits before ripe fruit drop; Third pests and diseases caused by falling fruit (Camellia seed and fruit anthracnose The disease is the main pests and diseases affecting the fruit drop.) This paper makes a preliminary investigation and analysis of its causes, which provides a theoretical basis for efficient cultivation of Camellia oleifera.