高山杜鹃成都平原越夏生长研究  

Study on the Summer Growth of Rhododendron lapponicum in Chengdu Plain

作　　者：陈睿[1,2] 胡菊 鲜小林 Chen Rui;Hu Ju;Xian Xiaolin(Horticulture Research Institute,Sichuan Academy of Agricultural Sciences,Chengdu 610066;Key Laboratory of Biology and Genetic Improvement of Horticultural Crops in Southwest Region,Ministry of Agriculture and Rural Affairs,Chengdu 610066)

机构地区：[1]四川省农业科学院园艺研究所,成都610066 [2]农业农村部西南地区园艺作物生物学与种质创制重点实验室,成都610066

出　　处：《中国农学通报》2020年第31期59-64,共6页Chinese Agricultural Science Bulletin

基　　金：四川蔬菜花卉种植创新与产业提升关键技术研发专项“杜鹃(高山杜鹃)商品化栽培技术集成创新与示范”(2016CYTS-009);四川蔬菜花卉种植创新与产业提升关键技术研发专项“杜鹃特色优势种质资源搜集及新材料创制”(2016CYTS-010)。

摘　　要：为加强对高山杜鹃的引种栽培,筛选出适合成都平原栽植的高山杜鹃品种,对引进的11个品种高山杜鹃的整株生长指标(冠幅、株高、地径、分蘖能力)、枝条生长指标(分枝数、最长分枝长度、单枝粗度、最长枝叶片数)、叶片生长指标(叶长、叶宽、叶片厚度)、夏稍长度以及热害指数进行评估。结果表明,引进的11个品种高山杜鹃均能在一定程度上适应成都平原越夏生长,其中‘王妃’的综合表现最好,尤其是其冠幅、株高、地径、最长分枝长度、单枝粗度、叶长、叶宽,在引种2个月后的增幅分别达到了131.43%、155.07%、53.79%、103.65%、26.66%、21.51%、27.34%;‘喜悦’的热害指数最低,几乎不受害。此外‘,粉蜜’‘、红溢’也表现不俗。因此,引进高山杜鹃品种‘王妃’‘、粉蜜’‘、红溢’‘、喜悦’适应成都平原的越夏生长,可进一步推广栽植。To improve the introduction and cultivation of Rhododendron lapponicum, varieties that suitable for planting in Chengdu plain were selected. Growth index of the whole plant(crown width, plant height, ground diameter, tillering ability), branches(number of branches, longest branch length, single branch thickness, the number of leaf at the longest branch), leaf(leaf length, leaf width, leaf thickness), summer branches length and heat damage index were evaluated of 11 species of R. lapponicum introduced in this study. The results showed that the 11 varieties of R. lapponicum introduced could adapt to the summer growth in Chengdu plain to a certain extent, among which ‘Royal’ was the most suitable, the increasing of its crown width, plant height,ground diameter, the longest branch length, single branch thickness, the leaf length and the leaf width reached 131.43%, 155.07%, 53.79%, 103.65%, 26.66%, 21.51%, and 27.34%, respectively. The heat injury index of ‘Cheer’ was 0, the lowest. In addition,‘Pink Honey’,‘Red Overflowing’ also had good performance.Therefore,‘Royal’,‘Pink Honey’,‘Red Overflowing’, and ‘Cheer’ are able to adapt to the summer growth at Chengdu plain, and could be further promoted.

关 键 词：高山杜鹃 越夏生长 生长指标 热害指数 成都平原 

分 类 号：S685.21[农业科学—观赏园艺]