强特勒核桃引种驯化选择研究

摘要

In order to develop walnut planting in alpine and cold mountainous regions,traditional walnut varieties have obviously insufficient resistance against both late frost and reverse spring coldness,Chandler walnut was introduced from abroad in 1995,and scions were collected in 1999 from their mother trees to propagate 1000 grated seedlings,which were then planted in the central nursery of Dape Township,Zhanyi County.Through 3 years of observation,results showed that the phenology of chandler was later over 20 days than local varieties,which can effectively avoid both late frost and reverse spring coldness,This paper expounded the characteristics of botany,flowering phenology,growth habits,fruit economic characters,nutritional components and mineral elements and economic indicators.%为了选育出对晚霜和倒春寒抵御能力强的核桃优良品种,对1995年从国外引入的强特勒核桃品种,于1999年培育嫁接1 000多株种植于沾益县大坡乡中心苗圃,于2012-2016年进行调查分析.结果表明,该品种物候期比本地品种晚20 d以上,能有效避开晚霜和倒春寒侵袭,丰产且抗逆性强.文中阐述了引种的强特勒核桃的植物学特征、开花物候期、生长结果习性、果实经济性状、营养成分、矿物质元素等生物学特性及经济指标.