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Articles by Burhan Arslan
Total Records ( 5 ) for Burhan Arslan
  Burhan Arslan
  This study was carried out to determine broad-sense heritability and variance components of seed yield and some components of safflower cultivars. The experiments were arranged in randomized blocks experiment designs with three replications in the 2000-2001 growing season in the East of Turkey. The twelve safflower cultivars were sown in the experimental area of Field Crops Department of Agricultural Faculty in Van ecological conditions. The broad-sense heritability values were determined for yield and yield components. According to the average results of the both experiment years, the maximum plant height (73.67 cm) and head diameter (32.12 mm) was obtained from cv. GW-9003, while the maximum heads/plant in (30.80 ) and seed yield (1737.50 kg ha-1) was obtained from cv. GW-9023. The primary branches/plant ranged from 5.75-7.30, seeds/head from 24.57 to 33.43 and 100-seed weight from 37.67 to 44.40 g in the safflower cultivars. The broad-sense heritability values of plant height, primary branchs/plant, heads/plant, head diameter, seeds/head, 100-seed weights and seed yield were calculated as 89, 76, 78, 81, 91, 91 and 92%, respectively.
  Burhan Arslan
  This study was carried out to determination of the differences and interactions between oil content and fatty acid of safflower cultivars. The experiments were arranged in randomized blocks experiment design with three replications in Van, Turkey. Three domestic (cvs of Yenice, Dinçer and Remzibey) and eight exotic cultivars (Centennial, GW9003, GW9005, GW9022, GW9023, Montola 2000, Montola 2001 and C9305) were grown in Van in 2000 and 2001. The results of variance analysis showed that the differences of oil content and fatty acid of cultivars were significant. The highest oil content was obtained from cvs. Montola 2001 and Montola 2000 (35.3 and 35.2%, respectively), while the lowest oil content was obtained from cv. Centennial (29.0%). In addition to, safflower cultivars were determined about 4.1 to 7.9%, palmitic acid, 1.1 to 4.6% stearic acid, 0.0 to 0.4% arachidic acid, 0.0 to 0.3% palmitoleic acid, 15.6 to 81.4% oleic acid, 7.2 to 77.3% linoleic acid and 0.1 to 1.2 % linolenic acid. The oil stability (18:1/18:2) of varieties ranged 0.20-0.30 in linoleic cultivars, 5.34-11.3 in oleic cultivars. On the other hand, positive and significant relationships were determined between oleic acid and palmitic acid (r = 0.317**), oil stability (r = 0.920**), while the greatest negative and significant relationship was found between oleic acid and linoleic acid (r = -0.999**).
  Burhan Arslan
  This study was aim to determine the relations among yield and some characters of safflower using correlations and path coefficient analysis. Fifteen safflower genotypes were grown at Van ecological conditions (eastern of Turkey) in 2000 and 2001 in randomized complete block design with three replications. Simple correlation analysis and path analysis were applied to the means of 15 genotypes in order to determine the relationships between agronomic characters and estimate the direct and indirect effects of agronomic characters on seed yield. Based on the results, positive and significant correlations were found between seed yield and all investigated traits except primary branches/plant (r = -0.466**) and 1000-seed weight (r = -0.220*). According to the path analysis, it can be also that seed yield was determined by head diameter, heads/plant and seeds/head since these characters had highly positive significant direct effects on seed yield.
  Burhan Arslan
  This research was conducted to determine the relations among tuber yield and some traits of potato using correlations and path coefficient analysis. The experimental design was a Randomized Complete Block Design with three replications in 1999-2000 growing season in Van (Gevas), Turkey. Simple correlation analysis and path analysis were applied to the means of fourteen potato genotypes in order to determine the relationships between agronomic characters and estimate the direct and indirect effects of some traits on tuber yield. Strong positive and significant correlations were found between tuber yield and plant height (r = 0.745), main stems/plant (r = 0.846), tubers/plant (r = 0.824), average tuber weight (r = 0.936), tuber weight/plant (r = 0.956) and big tuber percentage (r = 0.568). A negative and significant correlation was determined among tuber yield and medium tubers percentage (r = -0.573). According to the path analysis, it can be also that tuber yield was identified by tuber weight/plant, average tuber weight and tubers/plant since these characters had highly positive significant direct effects on tuber yield (56.5, 18.8 and 15.5%, respectively).
  Cuneyt Cirak , Jolita Radusiene and Burhan Arslan
  The present study was conducted to determine phenologic and morphogenetic variation of chlorogenic acid and flavonoids, as rutin, hyperoside, apigenin-7-O-glucoside, quercitrin, quercetin and viteksin content of Hypericum montbretii growing in Turkey. Wild growing plants were harvested at vegetative, floral budding, full flowering, fresh fruiting and mature fruiting stages and dissected into stem, leaf and reproductive tissues and assayed for bioactive compounds by HPLC method. Accumulation of rutin and quercetin was not detected in plant parts of H. montbretii during plant growth. Chlorogenic acid and hyperoside content in whole plant was decreased linearly with advancing of development stages and reached their highest level at vegetative stage. On the contrary, apigenin-7-O-glucoside, quercitrin and viteksin content in whole plant increased during the course of seasonal development and the highest level of those compounds was observed at the stage of full flowering. Leaves did not produce apigenin-7-O-glucoside, while viteksin was not detectable in stem and reproductive tissues. Depending on development stages, reproductive parts had the highest level of apigenin-7-O-glucoside and leaves produced major amount of chlorogenic acid, hyperoside and viteksin whereas accumulation of quercitrin was prevailed in stem tissue. Such kind of data could be useful for elucidation of the chemotaxonomical significance of these compounds and medicinal evaluation of this species.
 
 
 
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