延长桃花源风景区桃花观赏期的品种组合方案

Variety Combination Scheme for Prolonging the Ornamental Period of Peach Blossom in the Scenic Spot of Taohuayuan

为解决桃花源风景区桃花群体观赏期较短的问题,2007~2008年在常德职业技术学院观赏桃花种质资源圃定点观察记载了34个观赏桃品种的开花物候期,拟定3月10日前进入最佳观赏期的为早花品种;3月11~20日进入最佳观赏期的为中花品种;3月20日后进入最佳观赏期的为晚花品种。从中筛选了24个品种,按照早、中、晚花品种株数数量以4∶3∶3的比例配置,形成延长桃花源风景区桃花观赏期的品种组合方案,可使桃花群体花期延长至52 d,从而提高了桃花源风景区景观价值。

In order to resolve the problem of a relatively short period （ the proportion of 4： 3 ： 3） of peach blossom in Taohnayuan scenic slot, the blooming phenophase of 34 varieties of ornamental peach in the peach orchard germplasm fixed-point of Changde Vocational Technical College from 2007 to 2008 were observed and recorded. The peach varieties entering the best viewing period before March 10th were supposed to be early varieties of flowers; The peach varieties entering the best viewing period in March 11th - 20th were moderate varieties of flowers; The peach varieties entering the best viewing period after March 20th were late varieties of flowers. 24 varieties we selected. According to the plant number of early, middle and late varieties, the ratio of 4 ： 3 ： 3 was arrangod to form the varlety, combination scheme and prolong the viewing period of peach in Taohuayuan scenic spot. The pepulation blooming period of peach could be prolonged up to 52 d and the ornamental value of Taohuayuan scenic spot was enhanced.