|Table of Contents|

Differences in Leaf Characteristics and Water Use Efficiency of Quercus acutissima Seedlings From Different Provenances

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年13
Page:
101-109
Research Field:
Publishing date:

Info

Title:
Differences in Leaf Characteristics and Water Use Efficiency of Quercus acutissima Seedlings From Different Provenances
Author(s):
XUE Meiling; FANG Yanming; DAI Changzhi; YIN Zengfang
(College of Biology and Environment/Co-Innovation Center for Sustainable Forestry in Southern China，Nanjing Forestry University，Nanjing，Jiangsu 210037)
Keywords:
Quercus acutissima; provenance; leaf characteristics; water use efficiency
PACS:
-
DOI:
10.11937/bfyy.20184387
Abstract:
The trial of one-year-old seedlings of Quercus acutissima from 8 provenances was established at Xiashu Forestry Farm in Zhenjiang city of Jiangsu Province.The leaf characters and water use efficiency were determined，and the adaptability of different provenances to the growing environment was comprehensively analyzed，in order to provide a valuable reference for paralyzed forestry production practices.The results showed that there were significant differences in leaf morphological characteristics among different provenances (P<0.05).The leaf water content of Zhejiang Fuyang，Gansu Yanping，Zhejiang Kaihu，Jiangsu Xuyi provenances all reached above 54%，which was significantly higher than the other 4 provenances.The leaf water retention capacity of Jiangsu Xuyi provenances was the highest (13.99%) when 15 hours after the leaves are isolated，which was significantly higher than that of Shandong Tai′an (10.99%)，Gansu Yushu (10.65%)，Zhejiang Kaihua (10.39%).The water use efficiency of Jiangsu Zhenjiang，Gansu Yushu，Shandong Tai′an and Jiangsu Xuyi provenances were 2.97，5.22，3.85，3.90 μmol?mmol-1，which were significantly higher than the other 4 provenances.Correlation analysis indicated that there was a significant correlation among leaf morphological characteristics，while leaf morphological characteristics were significantly correlated with water content and leaf water content was negatively correlated with water use efficiency.Principal component analysis elucidated that the comprehensive evaluation index of 8 provenances was as follows,Jiangsu Xuyi (1.88)>Zhejiang Kaihua (0.94)>Jiangsu Zhenjiang (0.69)> Zhejiang Fuyang (0.39)>Gansu Yushu(0.48)>Hubei Enshi (-0.51)>Gansu Yanping (-0.66)>Shandong Tai′an (-2.25).According to the comprehensive analysis，Jiangsu Xuyi provenance has strong adaptability to the growing environment under the conditions of this test，followed by Jiangsu Zhenjiang，Zhejiang Fuyang and Zhejiang Kaihua.And these four provenances could be prioritized when cultivate and afforest seedlings of Quercus acutissima.

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Last Update: 2019-08-02