【摘要】 在云南省漾濞县,以Buccaneer、Coenen、Hansen等10个引种核桃品种和1个本地核桃品种为研究对象,开展各品种嫁接苗的物候期观测和1年生嫁接苗苗高和地径的定期测定。结果表明,10个引种品种在漾濞的萌芽期为3月13~22日,展叶期为4月1~8日,速生期为5月7日~6月22日,落叶期为11月6~21日,与对照品种漾濞大泡核桃相比,萌芽期、展叶期、速生期、落叶期都晚15~20天。1年生嫁接苗苗高和地径的生长周期变化各不相同,高生长出现的峰值不一致,而且都有2次生长,地径的生长周期变化基本相同,在生长期间出现的峰值也基本一致。更多还原

【Abstract】 Phenological observation was carried out for the 10 introduction walnut grafting seedling varieties and 1local walnut variety in Yangbi county of Yunnan Province based on the determination of 1-year grafting seedling height and ground diameter. The result shows that germination period of the 10 introduced varieties in Yangbi was from March 13 to March 22,leaf extension period was from April 1 ~ April 8,fast-growing period from May 7 to June 22,deciduous period from November 6th to November 21 st. Compared with the contrast varieties,the gerneration,leaf extension,fast-growing and deciduous period were 15 ~ 20 days later than that of the local ones. The growth cycles of 1-year grafting seedling height and ground diameter were different from each other. The peaks of high growth were also different,and there were 2 times of growth. There was little change in the growth cycles of ground diameter and the peak during the growth period was almost the same.更多还原