The Influence Of Priming Two Cucumber Cultivar Seeds

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J. Duhok Univ. Vol.13, No.1, (Agri. And Vet. Sciences) Pp 25-35, 2010 foliar spray at 400 and 600mg increased stem length, number of new leaves/plant and stem diameter, leaf area and plant dry weight (Alkhateeb,1996 and Hegazi, et al., 2002). The aim of the present work is to find out the effect of water stress, Phosphorus, and culture media on some morphological, physiological characteristics of transplanting pistachio, under water stress conditions 52 MATERIALS AND METHODS The study was carried out in the nursery of Horti./ Agri. Duhok Univ. Kurdistan Region- Iraq. Uniform and healthy pistachio transplant of y 500 400 300 200 100 two years old during 2009 were selected. The experiments were started in 10 th April 2009, as transplants were grown in pots each of ( 7.5kg) weight, filled with three media cultures (river loamy soil, 1/1 river loamy soil to peatmoss and 2:1 river loamy soil to peatmoss), plants were irrigated while 25% or 50%, of soil available water depleted (figer.1, 2, 3) as adapted by Abo- Taleb, et al., (1998) and Caser (2008). Five p2o5 concentrations (0,100, 200, 300, 400mg.P.L - 1 .Pots -1 ) were applied to the pots. The following measurements were recorded on 10 th October 2009. y = 10.8089 - 1.07452 x + 0.0600537 x**2 S = 32.3335 R-Sq = 97.5 % R-Sq(adj) = 97.2 % 0 0 10 20 30 40 50 60 70 80 90 100 x Figure (1). Soil moisture depletion curve of AWC (y) versus current resistance in (OHM) (x) for pots of river loam soil Fig (1): Soil moisture depletion curve of AWC (y) versus current resistance in (OHM) (x) for pots of river loam soil. y 500 400 300 200 100 y = 12.8682 - 1.95731 x + 0.0713832 x**2 S = 70.0147 R-Sq = 91.1 % R-Sq(adj) = 90.1 % 0 0 10 20 30 40 50 60 70 80 90 100 Figure (2). Soil moisture depletion x curve x of AWC (y) versus current resistance in (OHM) (x) for pots of 1/1 river loamy to peatmoss mixture soil Fig (2): Soil moisture depletion curve of AWC (y) versus current resistance in (OHM) (x) for pots of 1/1 river loamy to peatmoss mixture soil
J. Duhok Univ. Vol.13, No.1, (Agri. And Vet. Sciences) Pp 25-35, 2010 0 10 20 30 40 x 50 60 70 80 90 100 Figure (3): Depletion percentage (X) of available water capacity AWC of 2/1 peatmoss/river loamy versus curent resistance OHM (y). Fig (3): Depletion on percentage (X) of available water capacity AWC of 2/1 peatmoss/river loamy versus current. The parameters were measured: 1- Stem length (cm). 2- Stem diameter 5(mm) above the soil. 3- Number of new leaves/ plant. 4- Leaf area (cm 2 ): (Saieed,1990 and Azad 2007). Leaf area (cm 2 )= area of (A4)paper cut×part weight (g) Weight of (A4) paper (g) 5- Fresh leaf weight(g). 6- Leaf dry weight (g). y 500 400 300 200 100 Statistical analysis: The obtained data were tabulated and statistically analyzed by computer using SAS system (1996). Experiments conducted in this study followed a Complete Randomized Block Design in factorial experiment, the experiment comprised of 30 treatments with three replicates each replicate was presented by three pots and each pot contains four transplants. The differences between various treatment means were tested with Duncun multiple range test at 5% level. (SAS Institute.Inc,1996). RESULTS AND DISCUSSIONS: 1-Stem length (cm): The obtained results of water regime (Table 1) revealed that pistachio transplant with two levels of water, non significant affected in stem length. While, pistachio transplants treated with media culture substantially increased stem length (80.27cm) at 2:1 river loamy soil to peatmoss significantly. However, results showed that P 0 y = -31.1519 + 5.14194 x S = 72.1468 R-Sq = 86.4 % R-Sq(adj) = 85.9 % concentration 300mg.p.L -1 .Pots -1 was the paramount, as it gave the highest stem length (80.72cm) whereas; untreated treatment was the worst treatment (63.61cm). The interaction between water regime and media culture displayed that 25% water plus 2:1river loamy soil to peatmoss appeared to be the most potent treatment gave the highest stem length (81.2cm). Results of water level and P concentration interaction manifested that 50% water with 300mg.p.pot -1 resulted in the highest increase in stem length (88.11cm). However, the lowest stem length was observed with 50% water in control. Results of media culture and P concentration interaction revealed that 2:1 river loamy soil to peatmoss with P at concentration 200mg.p.L -1 .Pot -1 resulted in the highest stem length (87.17cm). Results of water levels, media culture and P concentration interactions indicated that 50%water plus media culture and 300mg.p.L -1 .Pot -1 concentration was the most effective treatment as it displayed the highest stem length (97.33cm). while, the lowest coincide with 25%water plus 1:1river loamy soil to peatmoss at untreated treatment (39cm). 2-Stem diameter (mm): Table (2) revealed that pistachio transplants treated with two levels of water resulted in a significant increase in stem diameter(6.13) at 25% water as compared to the 50%. However, pistachio transplants treated with media culture substantially increased in stem diameter(6.16mm) at 2:1river loamy soil to peatmoss. While, P concentration significant increase in stem diameter(6.49mm), particularly 52
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The Influence Of Priming Two Cucumber Cultivar Seeds

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