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1985年10月上旬,我市庐山区五里乡前进村果园场以及茅山头园艺场、庐山区其他乡的桔园曾出现了大面积柑桔开花的现象,可见去年的柑桔开二次花在九江市郊是一种普遍现象。本文拟从环境条件引起柑桔花芽分化的生理变化,谈谈柑桔的二次开花。 一、柑桔的生物学特性 柑桔具有四季成长的特性。金柑、四季桔、枸橼、柠檬等都是一年多次开花的种类,其在各次梢停止生长后都能开始分化花芽而开花。而温州蜜柑和桔类、橙、柚等,在亚热带地区仅在冬季果实成熟前后至次年早春期间进行花芽分化,即于春季开花一次。但在特殊的气候条
In early October 1985, the city of Lushan Wuli Township Qianjincun orchard farm and Maoshan head horticultural field, Lushan other township orange garden there have been a large area of citrus flowering, we can see last year’s citrus open two flowers In the suburbs of Jiujiang is a common phenomenon. This article intends to cause the physiological changes of citrus flower bud differentiation from the environmental conditions, to talk about the second flowering of citrus. First, the biological characteristics of citrus Citrus has four seasons growth characteristics. Kumquat, Siji orange, citron, lemon and so on are many times a year flowering species, which stop growing in all shoots can begin to differentiate flower buds and flowering. The orange and orange, orange, grapefruit and so on, in the subtropical region only during the winter fruit ripening to the next year early spring flower bud differentiation, that is, once in spring flowering. But in special climatic conditions