|Table of Contents|

Evaluation of Insect Responses of Different Rhododendron Species to Stephanitis pyriodes Scott Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年19
Page:
62-72
Research Field:
Publishing date:

Info

Title:
Evaluation of Insect Responses of Different Rhododendron Species to Stephanitis pyriodes Scott Stress
Author(s):
TAO Chubing1; HU Guowei2; ZOU Rongxian1; TENG Xinlei1; XIAO Zheng1; ZHAO Hongbo1
(1.College of Landscape and Architecture，Zhejiang Agriculture and Forestry University/Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants/Key Laboratory of National Forestry and Grassland Administration on Germplasm Innovation and Utilization for Southern Garden Plants，Hangzhou，Zhejiang 311300；2.Wuchan Zhongda Changle Forest Farm Company，Hangzhou，Zhejiang 311300)
Keywords:
Rhododendron; Stephanitis pyriodes Scott; insect resistance; physiological character
PACS:
S 628.21
DOI:
10.11937/bfyy.20240769
Abstract:
Rhododendron germplasm was used as the experimental material.Under natural conditions，employing correlation analysis，systematic cluster analysis，and principal component analysis，the variations in insect resistance among different Rhododendron to Stephanitis pyriodes Scott were comprehensively assessed,in order to provide reference for breeding insect-resistant Rhododendron germplasms.The results showed that a negative correlation among insect resistance pest index，leaf damage rate，insect quantity，and chlorophyll changes.Conversely，positive correlations were observed with the thickness of palisade tissue，the ratio of palisade tissue to spongy tissue，as well as the content of soluble sugar and soluble protein.Based on the comprehensive evaluation data，the tested materials were categorized into five groups，Rhododendron simsii，Rhododendron ‘Xiquedengzhi’，and Rhododendron ‘Liuqiuhong’ were designated as high resistance types.Rhododendron ‘Xiaoqinglian’，Rhododendron ‘Lanhuayu’，Rhododendron ‘Zi′e’，Rhododendron ‘Yangguifei’,and Rhododendron ‘Kangnaixin’ were designated as medium resistance types.Rhododendron ‘Mingzhao’，Rhododendron ‘Zihudie’，Rhododendron ‘Wangfei’，Rhododendron ‘Hongyingtao’，Rhododendron ‘Shalang’，Rhododendron ‘Fangchou’，Rhododendron ‘Lishanzhiwu’，Rhododendron ‘Yudaizhirong’，and Rhododendron ‘Tianzhang’ were designated as low resistance types.Rhododendron ‘Baiying’，Rhododendron ‘Hongpingguo’，Rhododendron ‘Fengbaidaye’，and Rhododendron ‘Aierxili’ were designated as low susceptibility types.Rhododendron ‘Hongzhengzhu’，Rhododendron ‘Fengguan’，Rhododendron ‘Fenhongpaopao’ Rhododendron ‘Yanzhimi’ and Rhododendron ‘Wanxia’，were designated as high susceptibility types.

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Last Update: 2024-10-21