硼元素对芒果花、胚发育及产量的影响

对云南栽培的“三年芒”（Ｓａｎｎｉａｎｍａｎｇ），“马切苏”（Ｍａｃｈｅｓｏ），３个芒果品种叶片硼含量及硼对花粉萌发，授粉受精，胚发育状况，产量的影响进行了观察研究。结果表明：１植株叶片硼含量在４ｍｇ／ｋｇ以上时产量受到严重影响；在４～１４ｍｇ／ｋｇ时各品种反应敏感程度不一，“三年芒”反应敏感。高含量植株产量显著高于低含量植株：“马切苏”、“秋芒”高含量与低含量量差异不如“三年芒”反应敏感。高含量

Effects of Boron on Blossom,Embryo Development and Yields of Mango

Three varieties of mango, namely Neelum, Sannianmang and Macheso were used as experimental materials in this research. After studying the Boron concentration in mango leaves as well as effects on pollen germination, pollination and insematino,embryo development and yields of mango, We concluded that: first, when the Boron concentration in mango leaves was less than 4 mg/kg, Mango yields decreased rapidly, When the Boron concentration in mango leaves was less than 4 mg/kg,mango yields decreased rapidly; when the Boron concentrantion in mango leaves was between 4 mg/kg to 14 mg/kg, different mango varieties had different responce. The yield of Sannianmang flcstuated more obviouly than the other two varieties. as Boron content changed. Second, when the Boron concentration was 4 to 14 mg/kg mango leaves did not show any sigo of Boron dleficieny, but it had certain influence on the reproductive organs, pollination and insemination of mango. Third, when the Boron concentration was under 14 mg/kg, Soil application of Boron and spraying it on the plant during florescence can increase mango's fruit setting and yields