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Water Use Efficiency of Four Dryland Wheat Cultivars under Different Levels of Nitrogen Fertilization

Miranzadeh, H.; Emam, Y.; Pilesjö, Petter LU and Seyyedi, H. (2011) In Journal of Agricultural Science and Technology 13(6). p.843-854
Abstract
It is suggested that cultivars of wheat (Triticum aestivum L.) with regulated growth and development would be able to produce higher yields under water-limited conditions, which is crucial in future food production. Water use efficiency (WUE) is worthy of exploration in this regard. In this study, the effects of nitrogen fertilizer levels (0, 40 and 80 kg Nha(-1)) and a plant growth retardant (Chlormequat Chloride = CCC) on WUE of four dryland wheat cultivars (Agosta, Nicknejad, Azar-2 and Fin-15) were examined in a field experiment during 2006-07 and 2007-08 growing seasons at College of Agriculture, Shiraz University, Iran. The results showed that there existed significant differences between cultivars for grain yield, biomass and WUE.... (More)
It is suggested that cultivars of wheat (Triticum aestivum L.) with regulated growth and development would be able to produce higher yields under water-limited conditions, which is crucial in future food production. Water use efficiency (WUE) is worthy of exploration in this regard. In this study, the effects of nitrogen fertilizer levels (0, 40 and 80 kg Nha(-1)) and a plant growth retardant (Chlormequat Chloride = CCC) on WUE of four dryland wheat cultivars (Agosta, Nicknejad, Azar-2 and Fin-15) were examined in a field experiment during 2006-07 and 2007-08 growing seasons at College of Agriculture, Shiraz University, Iran. The results showed that there existed significant differences between cultivars for grain yield, biomass and WUE. In the first season, the highest grain yield and biomass production (192.4 and 431.2 gm(-2), respectively) were obtained from Nicknejad cultivar, CCC application and using 80 kg Nha(-1), and in the second season, from Azar-2 cultivar (121.5 and 333.5 gm(-2), respectively). CCC and nitrogen had significant effects on photosynthesis rate and WUE in both seasons. Interaction of CCC and 80 kg Nha(-1) on WUE were significant in both seasons (1.24 and 2.72 gm(-2) mm(-1), respectively). It is suggested that interactive application of CCC and nitrogen fertilizer could have beneficial effects on wheat grain yield under similar agro-climatic conditions. (Less)
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Contribution to journal
publication status
published
subject
keywords
Chlormaquat chloride, Drought Stress, Grain Yield, Photosynthesis Rate, (An), Stomatal Conductance (gs), WUE
in
Journal of Agricultural Science and Technology
volume
13
issue
6
pages
843 - 854
publisher
Tarbiat Modares Univ
external identifiers
  • wos:000295408200004
  • scopus:80052702688
ISSN
1680-7073
language
English
LU publication?
yes
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da5688de-9ef3-4707-9b89-dd3e78bb22f2 (old id 2179428)
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http://jast.ir/?_action=articleInfo&article=450
date added to LUP
2011-10-25 10:34:17
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2017-09-17 05:52:50
@article{da5688de-9ef3-4707-9b89-dd3e78bb22f2,
  abstract     = {It is suggested that cultivars of wheat (Triticum aestivum L.) with regulated growth and development would be able to produce higher yields under water-limited conditions, which is crucial in future food production. Water use efficiency (WUE) is worthy of exploration in this regard. In this study, the effects of nitrogen fertilizer levels (0, 40 and 80 kg Nha(-1)) and a plant growth retardant (Chlormequat Chloride = CCC) on WUE of four dryland wheat cultivars (Agosta, Nicknejad, Azar-2 and Fin-15) were examined in a field experiment during 2006-07 and 2007-08 growing seasons at College of Agriculture, Shiraz University, Iran. The results showed that there existed significant differences between cultivars for grain yield, biomass and WUE. In the first season, the highest grain yield and biomass production (192.4 and 431.2 gm(-2), respectively) were obtained from Nicknejad cultivar, CCC application and using 80 kg Nha(-1), and in the second season, from Azar-2 cultivar (121.5 and 333.5 gm(-2), respectively). CCC and nitrogen had significant effects on photosynthesis rate and WUE in both seasons. Interaction of CCC and 80 kg Nha(-1) on WUE were significant in both seasons (1.24 and 2.72 gm(-2) mm(-1), respectively). It is suggested that interactive application of CCC and nitrogen fertilizer could have beneficial effects on wheat grain yield under similar agro-climatic conditions.},
  author       = {Miranzadeh, H. and Emam, Y. and Pilesjö, Petter and Seyyedi, H.},
  issn         = {1680-7073},
  keyword      = {Chlormaquat chloride,Drought Stress,Grain Yield,Photosynthesis Rate,(An),Stomatal Conductance (gs),WUE},
  language     = {eng},
  number       = {6},
  pages        = {843--854},
  publisher    = {Tarbiat Modares Univ},
  series       = {Journal of Agricultural Science and Technology},
  title        = {Water Use Efficiency of Four Dryland Wheat Cultivars under Different Levels of Nitrogen Fertilization},
  volume       = {13},
  year         = {2011},
}