|Table of Contents|

Evaluation of Drought Tolerance in Major Cucumber Germplasm(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年20
Page:
5-8
Research Field:
Publishing date:

Info

Title:
Evaluation of Drought Tolerance in Major Cucumber Germplasm
Author(s):
LI YangQIN ZhiweiZHOU XiuyanXIN Ming
(Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region),Ministry of Agriculture/Horticultural College,Northeast Agricultural University,Harbin,Heilongjiang 150030)
Keywords:
cucumberdrought tolerancegermplasm resourcesevaluation
PACS:
-
DOI:
10.11937/bfyy.201620002
Abstract:
Taking 16 major cucumber varieties as experimental materials,by setting the normal water treatment and drought (50% of the normal amount of water),the morphology of drought cucumber adult stage material,physiological and biochemical indexes were studied,and filtered out cucumber drought tolerance index,to provide the basis for breeding drought-resistant varieties of cucumbers.The results showed that the effect of drought on different ecological types of cucumber′s root dry weight,shoot dry weight,plant height,MDA content,net photosynthetic rate,transpiration rate,stomatal conductance and leaf area were significant,subordinate function value method was used to analysis the cucumber drought resistance analysis,the root dry weight was the most relevant indicator of drought tolerance.Then a regression equation with subordinate function value and root dry weight for identifying cucumber drought tolerance was established Y=0.575+0.417X,this equation was used to predict drought resistance of materials,and the total value of the membership function was basically the same as predict value.

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Last Update: 2016-11-18