Shahram Lak; Gholam Reza Abadouz; Zahra Nekoeianfar
Abstract
To assessment Alfalfa cultivars research project this research has been fulfilled in 2011 at Khouzestan Agricultural and Natural Resource Research Center in southwest of Ahwaz in Khouzestan province (Iran) by position 31º20′ N, 48º40′ E. At first section for evaluation wet forage ...
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To assessment Alfalfa cultivars research project this research has been fulfilled in 2011 at Khouzestan Agricultural and Natural Resource Research Center in southwest of Ahwaz in Khouzestan province (Iran) by position 31º20′ N, 48º40′ E. At first section for evaluation wet forage yield cultivars such as “Baghdadi”, “Mesasersa”, “Yazdi”, “Bami”, “Nikshahri”, “Synthetic” (Main factor) and two cutting time (Sub factor) according harvest time in four experiment by statistical plane of split plot based randomized complete block design in four replication was conducted. In summer cutting cultivar at 5% flowering stage, autumn cutting at 6-8 cm height of crown buds, winter cutting at 10-12 cm height of crown buds and spring cutting cultivars harvested at 15% flowering stage. Second section was conducted according statistical plane was mentioned expect sub factor include four level. Result showed Baghdadi, Mesasersa and Synthetic were superior to another cultivars and harvest time on forage yield and also interaction effect of factors on all traits expect stem diameter and number of stem in square meter were significant at 1% probability level. Because of climate factors in summer and spring cutting 25-30 day was best period for growing season. In autumn and winter cutting according low flowering it possible use growing degree days and period of received sunshine hours, their values in order 300-350 and 400-450 hours (Enough time), as well as Baghdadi, Mesasersa and Synthetic cultivars were superior in all cutting.
Reyhaneh Pishkam Rad; Ali Izadi Darbandi; Maryam Shahbazi; Mehdi Fazel Najaf-Abadi; Hamid Reza Nikkhah; Raha Abedini; Morteza Barati
Abstract
In order to study the reaction of barley genotypes to drought, an experiment was conducted in a factorialdesign based on CRD for two wild ecotypes and four crop genotypes of barley in greenhouse. In thisstudy, the barley genotypes and wild ecotypes as the first factor and irrigation treatment with three ...
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In order to study the reaction of barley genotypes to drought, an experiment was conducted in a factorialdesign based on CRD for two wild ecotypes and four crop genotypes of barley in greenhouse. In thisstudy, the barley genotypes and wild ecotypes as the first factor and irrigation treatment with three levelsinclude 70 percent of water holding capacity of soil, 30 and 10 percent as the second factor wereconsidered as treatments. Analysis of growth and other morphological characteristics such as tillers, plantheight and leaf number and leaf area per plant and some physiological characteristics including therelative water content, leaf chlorophyll content, osmotic potential, osmotic adjustment, stomatalconductance, canopy temperature in each three treatments were measured. Analysis of variance showedthat the effect of drought on all traits and differences between genotypes were significant. Results ofcorrelation revealed that there is a significant and direct relationship between relative water content withosmotic potential and percentage of dried material. Path analysis identified that osmotic potential had themost direct effect on died material. The 41-1 and Morocco genotypes showed greater sensitivity thanother genotypes to the applied stress.