4种美国山核桃在大渡河上游河谷地区的引种研究  

Introduction Research of Four Carya illinoensis Cultivars in Upper Dadu River Valley Area

作　　者：李元会 文嫱 兰常军 刘韩 刘燕云 彭克忠 吴富雨 LI Yuan-hui;WEN Qiang;LAN Chang-jun(Ganzi Prefecture Forestry Research Institute,Kangding,Sichuan 626001)

机构地区：[1]甘孜州林业科学研究所,四川康定626001

出　　处：《安徽农业科学》2023年第2期123-125,共3页Journal of Anhui Agricultural Sciences

基　　金：甘孜州地方财政资金项目“美国山核桃引种研究”。

摘　　要：[目的]研究4种美国山核桃在大渡河上游河谷地区的适应性。[方法]在大渡河上游河谷地区开展美国山核桃的引种研究,观测4种美国山核桃的物候期、生长量及病虫害。[结果]4种美国山核桃在大渡河上游河谷地区均能正常开花结实,物候期与当地气候条件较为适应;树体生长表现好,生长旺盛,年均地径生长量0.77~1.01 cm,年均树高生长量0.58~0.83 m,年均冠幅生长量0.54~0.71 m;不同品种间生长表现存在显著差异,斯图尔特的地径生长显著高于其他品种,马罕的树高和冠幅生长显著高于其他品种;抗病虫害能力强,病虫危害率低,平均病虫害率仅为9.16%。[结论]4种美国山核桃均能适应大渡河上游河谷地区的气候条件,为下一步的良种选育和配置授粉树提供理论依据,更能为开展丰产栽培和标准化生产经营奠定基础。[Objective]To explore adaptability of Carya illinoensis in upper Dadu River valley area.[Method]Introduction research of Carya illinoensis in upper Dadu River valley area was carried out.The phenology,growth,diseases and pests of four Carya illinoensis cultivars were observed.[Result]Four Carya illinoensis cultivars could bloom and bear fruit normally in upper Dadu River valley area,phenological period and local climate conditions were more suitable.The growth of tree body was good and vigorous,with annual average ground diameter growth of 0.77-1.01 cm,annual average tree height growth of 0.58-0.83 m,and annual average crown width growth of 0.54-0.71 m.There were significant differences in the growth performance of different cultivars,the ground diameter growth of‘Stuart’was significantly higher than other cultivars,the tree height growth and crown width growth of‘Mahan’was significantly higher than other cultivars.Strong resistance to pests and diseases,low rate of pests and diseases,average pest and disease rate was 9.16%.[Conclusion]Four Carya illinoensis cultivars can adapt to climatic conditions of upper Dadu River valley area,the results can provide theoretical basis for breeding and configuring pollination trees,can also lay the foundation for the development of high-yield cultivation and standardized production and management.

关 键 词：美国山核桃 大渡河 河谷地区 引种 

分 类 号：S664.1[农业科学—果树学]