平欧杂交榛抗寒性综合评价体系的建立与应用*

doi:10.11707/j.1001-7488.20080906

Scientia Silvae Sinicae ›› 2008, Vol. 44 ›› Issue (9): 31-35.doi: 10.11707/j.1001-7488.20080906

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Establishment and Application of Integrated Assessment System on Cold Resistance of Hybrid Hazelnut

Lü Yuedong^1,2,Dong Fengxiang¹,Wang Guixi¹,Wang Qingcheng ²

(1. Key Laboratory of Forestry Silviculture of State Forestry Administration Research Institute of Forestry, CAF Beijing 100091; 2. Northeast Forestry University Harbin 150040)

Received:2007-10-28 Revised:1900-01-01 Online:2008-09-25 Published:2008-09-25

Abstract

Abstract:

Germination rate of Hybrid Hazelnut, at-22 ℃ was determined as a judging indicator of cold hardiness with the method of artifical simulation of low temperature. Correlation analysis was used to select,
five indicators for cold resistance assessment of different Hybrid Hazelnut, and the indicatiors were further converted to integrated index by principle component analysis, with their weights determined for establishing the assessment system. Integrated index value of cold resistance of each variety was obtained based on the weight and its function value. The cold resistance order was 84-349＞81-23＞85-127＞B-3＞84-69＞84-545＞81-9＞83-33＞84-1＞84-72＞84-254＞84-48＞84-402＞84-237＞82-11＞84-226＞B-21＞84-572These varieties of Hybrid Hazelnut could be divided into 4 groups by cluster analysis. 84-349、81-23 and 85-127 had the strong cold resistance, B-3、84-69、84-545、81-9、83-33 and 84-1 had medium cold resistance, 84-72、84-254、84-48、84-402、84-237、82-11、84-226 and B-21 had poor cold resistance, 84-572 was the poorest.

Key words: Hybrid Hazelnut, cold resistance, integrated assessment

Lü Yuedong;Dong Fengxiang;Wang Guixi;Wang Qingcheng . Establishment and Application of Integrated Assessment System on Cold Resistance of Hybrid Hazelnut[J]. Scientia Silvae Sinicae, 2008, 44(9): 31-35.

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Establishment and Application of Integrated Assessment System on Cold Resistance of Hybrid Hazelnut

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