摘要
用田间统计的方法研究了北京地区２７份优良早熟桃品种自然休眠结束期及需冷量，结果表明：２７份早熟桃品种自然休眠结束期差异很大，最早在１２月中旬，最晚推迟到１月底。多数品种在１２月下旬结束自然休眠。不同低温模型所统计出的２７份桃品种需冷量之间存在着显著差异，０～７．２℃模型偏低，７．２℃模型偏高，犹它模型分布在６６０～８３０Ｃ．Ｕ．。大部分桃品需冷量分布在７００～８００Ｃ．Ｕ．。
Studies on the rest release period and the chilling requirement of twenty seven fine early peach varieties by the method of field statistics in Beijing area. The main results obtained from this experiment were as the following:There were very difference in the rest release period among seven fine early peach varieties.The earliest in the second ten days of December; the latest in the end of January;an overwhelming majority in the last ten days of December. There were significant difference among chilling requirement of the peach varieties given by different low temperature models. The 0～7.2℃Model was lower;The 7.2℃ Model was higher; The Chill-Unit Model distributed 660～830C.U., and most of the peach varieties were distributed 700～800C.U..
出处
《莱阳农学院学报》
1998年第1期6-9,共4页
Journal of Laiyang Agricultural College
关键词
桃树
休眠
需冷量
品种
peach
rest release period
the chilling requirement
