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Improving heat stress tolerance in late planted spring maize by using different exogenous elicitors
Iqbal Hassan1,2; Chen Yaning1; Rehman Hafeez Ur3; Waqas Muhammad1,2; Ahmed Zeeshan1; Raza Syed Turab2,4; Shareef Muhammad1,2
Corresponding AuthorChen Yaning(chenyn@ms.xjb.ac.cn)
2020
Source PublicationCHILEAN JOURNAL OF AGRICULTURAL RESEARCH
ISSN0718-5839
Volume80Issue:1Pages:30-40
SubtypeArticle
Contribution Rank4
AbstractRecent global warming has increased the risk of heat stress which may adversely affect crop productivity worldwide. Higher temperature during reproductive stage is one of major constraint that adversely affects grain filling and seed setting in spring maize (Zea mays L.) The purpose of this study was to evaluate the potential of different elicitors (salicylic acid, CaCl2, Moringa oleifera Lam. leaf extract) to improve yield performance of heat stressed spring maize. Seed priming techniques (hydropriming, osmopriming, organic priming and hormonal priming) were used to investigate the impact of exogenous elicitors on physiological, biochemical and yield-related attributes of late planted spring maize. Results revealed that higher temperature at maturity caused membrane leakage, reduced photosynthetic pigments and net assimilation rate which ultimately led to decreased grain yield. However, exogenous elicitors improved emergence characteristics and triggered early seedling development, and exhibited significantly higher seedling chlorophyll contents than control plants. Among elicitors, salicylic acid (SA) exhibited significantly higher photosynthetic pigment (17%), membrane stability index (26%), relative water content (16%), crop growth rate (13%), net assimilation rate (29%), grain yield (27%), biological yield (14%), harvest index (9%) and grain protein (28%) as compared to control in late planted spring maize. The multivariate analysis also indicate that physio-biochemical traits were more pronounced in hormonal priming with SA as compared to other exogenous elicitors. In conclusion, application of exogenous elicitors like SA is most effective and easy approach that may help to improve crop performance with increased grain yield and quality in late planted spring maize that prone to high temperature.
KeywordGlobal warming heat stress maize Moringa oleifera priming techniques salicylic acid
DOI10.4067/S0718-58392020000100030
Indexed BySCI
WOS KeywordZEA-MAYS L. ; SALICYLIC-ACID ; GROWTH ; YIELD ; GERMINATION
Language英语
Funding ProjectChinese Academy of Sciences (CAS)-The World Academy of Sciences (TWAS) President's Fellowship ; Endowment Fund Secretariat, University of Agriculture Faisalabad, Pakistan
WOS Research AreaAgriculture
WOS SubjectAgriculture, Multidisciplinary ; Agronomy
WOS IDWOS:000512319700004
Funding OrganizationChinese Academy of Sciences (CAS)-The World Academy of Sciences (TWAS) President's Fellowship ; Endowment Fund Secretariat, University of Agriculture Faisalabad, Pakistan
PublisherINST INVESTIGACIONES AGROPECUARIAS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/33877
Collection中国科学院水利部成都山地灾害与环境研究所
Corresponding AuthorChen Yaning
Affiliation1.Xinjiang Institute of Ecology and Geography, State Key Laboratory of Desert and Oasis Ecology, Chinese Academy of Sciences, 818 South Beijing Road, Urumqi 830011, China;
2.University of Chinese Academy of Sciences, 19(A) Yuquan Road, Shijingshan District, Beijing 100049, China;
3.University of Agriculture, Department of Agronomy, Faisalabad 38040, Pakistan;
4.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Nr 9, Block 4, Renmin South Road, Chengdu 610041, China
Recommended Citation
GB/T 7714
Iqbal Hassan,Chen Yaning,Rehman Hafeez Ur,et al. Improving heat stress tolerance in late planted spring maize by using different exogenous elicitors[J]. CHILEAN JOURNAL OF AGRICULTURAL RESEARCH,2020,80(1):30-40.
APA Iqbal Hassan.,Chen Yaning.,Rehman Hafeez Ur.,Waqas Muhammad.,Ahmed Zeeshan.,...&Shareef Muhammad.(2020).Improving heat stress tolerance in late planted spring maize by using different exogenous elicitors.CHILEAN JOURNAL OF AGRICULTURAL RESEARCH,80(1),30-40.
MLA Iqbal Hassan,et al."Improving heat stress tolerance in late planted spring maize by using different exogenous elicitors".CHILEAN JOURNAL OF AGRICULTURAL RESEARCH 80.1(2020):30-40.
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