论文部分内容阅读
山楂[Crataegus. Pinnatifida Bge]是我国特有的果树,栽培历史悠久,营养丰富,用途广,果实耐贮藏运输,经济价值高;适应性强,栽培技术简单,容易掌握。兰州市城关区从1984年开始,从山西等地引进栽培,表现较好。1985年～1987年期间,作者对山楂的开花生物学特性进行了观察,鉴定开花特性,以期正确划分山楂开花物候期,掌握山楂花开放进程、开花数量的昼夜分布以及温度对开花的影响,为山楂杂交育种和提高果实产量、质量提供依据。
Hawthorn Crataegus Pinnatifida Bge is a peculiar fruit tree in our country. It has a long history of cultivation, rich nutrition, wide use, fruit storage and transportation, high economic value, strong adaptability, simple cultivation technique and easy to grasp. Chengguan District, Lanzhou City from 1984 onwards, from Shanxi and other places introduced cultivation, performed better. From 1985 to 1987, the author observed the flowering characteristics of hawthorn and identified the flowering characteristics, in order to correctly divide the flowering phenophase of hawthorn, to grasp the opening process of hawthorn, the diurnal distribution of flowering number and the effect of temperature on flowering. Hawthorn hybrid breeding and improve fruit yield, quality basis.