Arid
DOI10.1007/s00344-011-9192-1
Effect of Putrescine and Paclobutrazol on Growth, Physiochemical Parameters, and Nutrient Acquisition of Salt-sensitive Citrus Rootstock Karna khatta (Citrus karna Raf.) under NaCl Stress
Sharma, Dew Kumari1; Dubey, A. K.1; Srivastav, Manish1; Singh, A. K.1; Sairam, R. K.2; Pandey, R. N.3; Dahuja, Anil4; Kaur, Charanjeet5
通讯作者Dubey, A. K.
来源期刊JOURNAL OF PLANT GROWTH REGULATION
ISSN0721-7595
出版年2011
卷号30期号:3页码:301-311
英文摘要

Salinity is a serious problem in arid and semiarid areas and citrus trees are classified as salt-sensitive. Because putrescine (Put) and paclobutrazol (PBZ) are known to act as plant protectants under environmental stresses, we examined the effect of Put and PBZ on the physiochemical parameters of the salt-susceptible citrus rootstock Karna khatta under NaCl stress. PBZ was applied at 0, 250, and 500 mg L(-1) as a soil drench 1 week prior to salinization. A computed amount of NaCl salt to develop soil salinity of 3 dS m(-1) (3 g NaCl kg(-1) soil) and foliar spray of Put at 0 or 50 mg L(-1) were applied. The electrical conductivity (EC) of the garden soil (0.35 dS m(-1)) was used as control. Application of PBZ and/or Put reduced the membrane injury index and increased relative water content, photosynthetic rate, and pigments content under saline conditions compared to what occurred in plants exposed to NaCl in the absence of PBZ or Put. Application of PBZ or Put alone or in combination also improved the activities of SOD and peroxidase and proline content under saline conditions. Application of PBZ and/or Put also increased K(+) and reduced Na(+) and Cl(-) concentrations in leaf tissues. It is proposed that PBZ and/or Put could improve the tolerance of salt-susceptible Karna khatta by regulating absorption and accumulation of ions and improving antioxidant enzyme activities.


英文关键词Citrus Karna khatta PBZ Physiochemical parameters Putrescine Nutrient acquisition Salinity
类型Article
语种英语
国家India
收录类别SCI-E
WOS记录号WOS:000294540200004
WOS关键词WHEAT TRITICUM-AESTIVUM ; WATER-STRESS ; TOLERANCE ; POLYAMINES ; SEEDLINGS ; PROLINE ; PLANTS ; TRIADIMEFON ; YIELD ; CHLOROPHYLL
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/2XILL650/169389
作者单位1.Indian Agr Res Inst, Div Fruits & Hort Technol, New Delhi 110012, India;
2.Indian Agr Res Inst, Div Plant Physiol, New Delhi 110012, India;
3.Indian Agr Res Inst, Div Soil Sci & Agr Chem, New Delhi 110012, India;
4.Indian Agr Res Inst, Div Biochem, New Delhi 110012, India;
5.Indian Agr Res Inst, Div Post Harvest Technol, New Delhi 110012, India
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GB/T 7714
Sharma, Dew Kumari,Dubey, A. K.,Srivastav, Manish,et al. Effect of Putrescine and Paclobutrazol on Growth, Physiochemical Parameters, and Nutrient Acquisition of Salt-sensitive Citrus Rootstock Karna khatta (Citrus karna Raf.) under NaCl Stress[J],2011,30(3):301-311.
APA Sharma, Dew Kumari.,Dubey, A. K..,Srivastav, Manish.,Singh, A. K..,Sairam, R. K..,...&Kaur, Charanjeet.(2011).Effect of Putrescine and Paclobutrazol on Growth, Physiochemical Parameters, and Nutrient Acquisition of Salt-sensitive Citrus Rootstock Karna khatta (Citrus karna Raf.) under NaCl Stress.JOURNAL OF PLANT GROWTH REGULATION,30(3),301-311.
MLA Sharma, Dew Kumari,et al."Effect of Putrescine and Paclobutrazol on Growth, Physiochemical Parameters, and Nutrient Acquisition of Salt-sensitive Citrus Rootstock Karna khatta (Citrus karna Raf.) under NaCl Stress".JOURNAL OF PLANT GROWTH REGULATION 30.3(2011):301-311.
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