干旱区生态环境知识资源中心(Arid): ASSESSMENT OF PHYSIO-BIOCHEMICAL INDICATORS FOR DROUGHT TOLERANCE IN DIFFERENT CULTIVARS OF MAIZE (ZEA MAYS L.)

Arid

DOI	10.30848/PJB2019-4(21)
	ASSESSMENT OF PHYSIO-BIOCHEMICAL INDICATORS FOR DROUGHT TOLERANCE IN DIFFERENT CULTIVARS OF MAIZE (ZEA MAYS L.)
	Shafiq, Sidra 1; Akram, Nudrat Aisha 1; Ashraf, Muhammad 2
通讯作者	Akram, Nudrat Aisha
来源期刊	PAKISTAN JOURNAL OF BOTANY
ISSN	0556-3321
EISSN	2070-3368
出版年	2019
卷号	51 期号:4 页码:1241-1247
英文摘要	Maize is an important cereal crop all-over the world and has been recently ranked at first among all cereal crops. However, growth of maize plants is negatively affected in arid and semi-arid areas of the globe due to scarcity of water, but genetically variable cultivars/lines differ considerably to respond to water limited conditions. To evaluate the response of some commercial cultivars of maize to water deficit conditions, a pot experiment was carried out. Eight maize cultivars (Sultan, Akbar, Pearl, MMRI, Maki Pak, Sahiwal 2002, Sadaf and Neelum) were subjected to varying [100%, 75% and 60% of field capacity (FC)] levels of water deficit conditions. Drought stress significantly decreased shoot fresh and dry weights, root fresh and dry weights and chlorophyll pigments (a and b) in all maize cultivars. However, free proline, glycinebetaine (GB), total phenolics, hydrogen peroxide (H2O2), malondialdehyde (MDA) contents, activities of enzymatic antioxidants (CAT, POD and SOD) and ascorbic acid (AsA) contents increased significantly under water deficit conditions. Of all maize cultivars, cv. Sadaf was superior in terms of plant growth, while, cv. Sultan proved to be inferior to the other cultivars examined in this study. It was concluded that osmoprotectants such as proline and GB can be used as stress tolerance indicators under drought stress conditions.
英文关键词	Maize Drought Antioxidants Germination Growth
类型	Article
语种	英语
国家	Pakistan
收录类别	SCI-E
WOS记录号	WOS:000465364400010
WOS关键词	OXIDATIVE DEFENSE SYSTEM ; BRASSICA-NAPUS L. ; LIPID-PEROXIDATION ; WATER-DEFICIT ; CHLOROPHYLL FLUORESCENCE ; ASCORBIC-ACID ; NITRIC-OXIDE ; STRESS ; GROWTH ; RESPONSES
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217846
作者单位	1.Govt Coll Univ, Dept Bot, Faisalabad, Pakistan; 2.Univ Agr Faisalabad, Faisalabad, Pakistan
推荐引用方式 GB/T 7714	Shafiq, Sidra,Akram, Nudrat Aisha,Ashraf, Muhammad. ASSESSMENT OF PHYSIO-BIOCHEMICAL INDICATORS FOR DROUGHT TOLERANCE IN DIFFERENT CULTIVARS OF MAIZE (ZEA MAYS L.)[J],2019,51(4):1241-1247.
APA	Shafiq, Sidra,Akram, Nudrat Aisha,&Ashraf, Muhammad.(2019).ASSESSMENT OF PHYSIO-BIOCHEMICAL INDICATORS FOR DROUGHT TOLERANCE IN DIFFERENT CULTIVARS OF MAIZE (ZEA MAYS L.).PAKISTAN JOURNAL OF BOTANY,51(4),1241-1247.
MLA	Shafiq, Sidra,et al."ASSESSMENT OF PHYSIO-BIOCHEMICAL INDICATORS FOR DROUGHT TOLERANCE IN DIFFERENT CULTIVARS OF MAIZE (ZEA MAYS L.)".PAKISTAN JOURNAL OF BOTANY 51.4(2019):1241-1247.