文献类型：期刊文献

英文题名：Effects of Salt Stress on Seed Germination of Four Ornamental Non-Halophyte Species

作者：Zhang, Zihan[1,2,3] Yu, Fangyuan[1]

第一作者：Zhang, Zihan;张子晗

通信作者：Yu, FY[1]

机构：[1]Nanjing Forestry Univ, Coll Forest Sci, Collaborat Innovat Ctr Sustainable Forestry South, Nanjing 210037, Jiangsu, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, State Forestry Adm, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China;[3]Chinese Acad Forestry, Res Inst Forestry, State Forestry Adm, Key Lab Tree Breeding & Cultivat, Beijing 100091, Peoples R China

年份：2019

卷号：21

期号：1

起止页码：47-53

外文期刊名：INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000454605700008)】；

基金：This work is supported by A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD). We wish to thank the tree seeds and seedlings station of Ji'an, Jiangxi Province for providing seed material. We also thank the individuals of Minghui Du, Minjie Zhang, Kai Huang for their help with data collection, and we thank Haomin Yao, Shaoxuan Liu, Lei Sun, Jie Zhang, Georges Moreau for their kind assistance with the language.

语种：英文

外文关键词：Salt stress; Germination characteristics; Ornamental trees; Seed vigour; Salt tolerance

摘要：The seeds of Pinus taeda, P. elliottii, Lagerstroemia indica and Fraxinus chinensis were germinated at various salinity regimes (0, 50, 100, 150 and 200 mM NaCl). The results indicate that germinated seeds of four investigated tree species were inhibited at different saline levels. Germination speed and seed vigour, which were indicated by germination index and vigour index, decreased with increase in salt stress, whereas different descending patterns were observed among all the seeds. The salt-resistant capacity of seeds in four tree species was arranged in numerical order by their relative germination percentage and vigour index; however, they could not be clearly identified from each other when NaCl levels were 50 and 200 mM. At 100 mM NaCl, salt-tolerance was ranked from highest to lowest as follows: P. elliottii, F. chinensis, P. taeda and L. indica. However, P. elliottii ranked lower than F. chinensis at 150 mM NaCl, indicating that F. chinensis exhibited better adaptation to salt stress than P. elliottii. (C) 2019 Friends Science Publishers