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Paper Information

Journal:   AGRICULTURAL SCIENCES AND TECHNOLOGY   2006 , Volume 20 , Number 7; Page(s) 49 To 59.
 
Paper: 

DETERMINATION OF PHENOLOGY AND OPTIMUM EARLY GROWTH RATE OF CHICKPEA IN RAINFED CONDITIONS OF GONBAD AND GORGAN

 
 
Author(s):  SOLTANI A., FARAJI A.
 
* 
 
Abstract: 
In order to evaluate the effect of genetic improvement of different traits on vegetative characters, phenology stages and grain yield of chickpea (Cicer arietinum L.) in rain fed condition and to use in the future breeding programs, a simulation experiment was evaluated by Cyrus model. Decrease or increase of 4 effective parameters on chickpea (Hashem cultivar) was evaluated using 88 year weather data in rain fed conditions of Gonbad and Gorgan. Areduction of 20% in the length between emergence and start of flowering was the best suitable time to increase grain yield while decreasing vegetative growth period and maint caning grain filling period. In fact the optimum distribution of water existence between productive and reproductive stages can increase grain yield of chickpea significantly. Having early maturity for increasing grain yield in rainfed conditiens of Gonbod area was higher than Gorgan. Reducing 20% in the length between emergence and beginnig of flowering showed the highest grain yield. This 20% reduction increased grain yield up to 1769 kglha (49% more them hashem ciltivar) in Gonbad and 2265 kg/ha (25% more than hashem cultiuar) in Gorgan area.Also the possibility of having a higher grain yield than Hashem cultivar with reducing 20%from emergence to beginning of flowering period in Gonbad and Gorgan was 100 and 94.34%, respectively.
 
Keyword(s): CHICKPEA, CULTIVAR, SIMULATION, DROUGHT STRESS, YIELD, RAINFED CONDITIONS
 
References: 
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