Growth and physiological responses of four kiwifruit genotypes to salt stress and resistance evaluation
In this study, four genotypes (Acva-1, Acva-2, Acva-3 and ZM-2) of Actinidia germplasm resources were grown in different NaCI concentrations (0, 0.4, 0.8 and 1.2 g L–1). The growth, physiological and biochemical indicators were measured, and a graded scale was developed as the salt damage index (SDI...
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doaj-279c7da067c141999ade3e8b9e3f14b42021-06-08T04:40:16ZengElsevierJournal of Integrative Agriculture2095-31192019-01-011818395Growth and physiological responses of four kiwifruit genotypes to salt stress and resistance evaluationYun-peng ZHONG0Xiu-juan QI1Jin-yong CHEN2Zhi LI3Dan-feng BAI4Cui-guo WEI5Jin-bao FANG6Key Laboratory for Fruit Tree Growth, Development and Quality Control, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, P.R.ChinaKey Laboratory for Fruit Tree Growth, Development and Quality Control, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, P.R.ChinaKey Laboratory for Fruit Tree Growth, Development and Quality Control, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, P.R.ChinaKey Laboratory for Fruit Tree Growth, Development and Quality Control, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, P.R.ChinaKey Laboratory for Fruit Tree Growth, Development and Quality Control, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, P.R.ChinaKey Laboratory for Fruit Tree Growth, Development and Quality Control, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, P.R.ChinaCorrespondence FANG Jin-bao; Key Laboratory for Fruit Tree Growth, Development and Quality Control, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, P.R.ChinaIn this study, four genotypes (Acva-1, Acva-2, Acva-3 and ZM-2) of Actinidia germplasm resources were grown in different NaCI concentrations (0, 0.4, 0.8 and 1.2 g L–1). The growth, physiological and biochemical indicators were measured, and a graded scale was developed as the salt damage index (SDI) according to different damage symptoms in leaves. The results showed SDI increased gradually, and average number and length of new shoot decreased significantly. Three antioxidant enzymes (superoxide dismutase, peroxidase and catalase) and two osmotic adjustment substances (soluble sugar and proline) showed different changes in old and new leaves of four genotypes. SPAD values exhibited a decreased trend in the whole except in the new leaves of Acva-2. Malonaldehyde contents increased and root activity decreased with the increasing salt concentrations. Principal component analysis was used to assess the salt tolerance, and the results showed Acva-3, from Actinidia valvata Dunn., had the strongest tolerance to salt, and could be a potential resistant resource to the salt-tolerance dedicated rootstock breeding of kiwifruit.http://www.sciencedirect.com/science/article/pii/S2095311918620118kiwifruitsalt stressprincipal component analysisresistance evaluation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yun-peng ZHONG Xiu-juan QI Jin-yong CHEN Zhi LI Dan-feng BAI Cui-guo WEI Jin-bao FANG |
spellingShingle |
Yun-peng ZHONG Xiu-juan QI Jin-yong CHEN Zhi LI Dan-feng BAI Cui-guo WEI Jin-bao FANG Growth and physiological responses of four kiwifruit genotypes to salt stress and resistance evaluation Journal of Integrative Agriculture kiwifruit salt stress principal component analysis resistance evaluation |
author_facet |
Yun-peng ZHONG Xiu-juan QI Jin-yong CHEN Zhi LI Dan-feng BAI Cui-guo WEI Jin-bao FANG |
author_sort |
Yun-peng ZHONG |
title |
Growth and physiological responses of four kiwifruit genotypes to salt stress and resistance evaluation |
title_short |
Growth and physiological responses of four kiwifruit genotypes to salt stress and resistance evaluation |
title_full |
Growth and physiological responses of four kiwifruit genotypes to salt stress and resistance evaluation |
title_fullStr |
Growth and physiological responses of four kiwifruit genotypes to salt stress and resistance evaluation |
title_full_unstemmed |
Growth and physiological responses of four kiwifruit genotypes to salt stress and resistance evaluation |
title_sort |
growth and physiological responses of four kiwifruit genotypes to salt stress and resistance evaluation |
publisher |
Elsevier |
series |
Journal of Integrative Agriculture |
issn |
2095-3119 |
publishDate |
2019-01-01 |
description |
In this study, four genotypes (Acva-1, Acva-2, Acva-3 and ZM-2) of Actinidia germplasm resources were grown in different NaCI concentrations (0, 0.4, 0.8 and 1.2 g L–1). The growth, physiological and biochemical indicators were measured, and a graded scale was developed as the salt damage index (SDI) according to different damage symptoms in leaves. The results showed SDI increased gradually, and average number and length of new shoot decreased significantly. Three antioxidant enzymes (superoxide dismutase, peroxidase and catalase) and two osmotic adjustment substances (soluble sugar and proline) showed different changes in old and new leaves of four genotypes. SPAD values exhibited a decreased trend in the whole except in the new leaves of Acva-2. Malonaldehyde contents increased and root activity decreased with the increasing salt concentrations. Principal component analysis was used to assess the salt tolerance, and the results showed Acva-3, from Actinidia valvata Dunn., had the strongest tolerance to salt, and could be a potential resistant resource to the salt-tolerance dedicated rootstock breeding of kiwifruit. |
topic |
kiwifruit salt stress principal component analysis resistance evaluation |
url |
http://www.sciencedirect.com/science/article/pii/S2095311918620118 |
work_keys_str_mv |
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