余甘子开花物候特性研究

余甘子所有的品种都是先开雄花后开雌花；一般雌花可授期比雄花散粉期来得晚，且持续时间短．可授期含在散粉期内。余甘子不同品种雄花开花物候期有很大差别，品种间相差最长28d。雌花开花持续时间比雄花要短得多，不同品种在16～21d之间变动；雌花盛花期更短，不同品种在8～12d间。余甘子多个品种存在多次开花结实现象；雄花的第一次持续时间和盛花持续时间都长，在第二、三次则大大缩短。第一次的果实产量是全年产量的主要保证。兰丰和粉甘品种开花同步指数最高．能相互较好地授粉．适合在建园中进行品种配置。

Study on the Florescent Characters of Phyllanthus emldica

The male flowers blossom before the female flowers for all varieties of Phyllanthus emldica. Generally, the pollination time of female is later than the mature time of the male, and the duration is shorter, which is in the time of pollen dissemination period. The blossom time for male flowers for different species is different, the maximum of which is 28 days. The florescence of female flowers is much shorter than that of male, which varies from 16 to 21 days, and the luxuriant bloom period varies from 8 to 12 days. Many varieties of Phyllanthus emldica can blossom and fructify many times in one-year, the florescence and luxuriant bloom period are long for the first time, but shorten sharply for the second and third time. The first production is the main proportion of the year. The Lanfeng and Fengan blossom at the same time approximately and complete pollination mutually, which is suitable to plant in the gardon.