جستجوی مقالات مرتبط با کلیدواژه « seed oil percentage » در نشریات گروه « باغبانی »

In order to investigate the possible influence of seasonal variation on the percentage of seed oil and total phenolic content in seeds and leaf of safflower, three populations (19 accessions) including 6 cultivars of cultivated species (Carthamus tinctorius), 4 genotypes of wild species (C. oxyacanthus) and 9 genotypes of F5 generation derived from inter-specific cross (C. tinctorius× C. oxyacanthus) in two sowing dates, were evaluated. The results showed the effect of planting dates was significant on the percentage of seed oil and total phenolic content of seeds (p

To find the best plant density and study the compatibility of soybean cultivars in water stress condition, a field experiment was performed in randomized complete block design with split-factorial arrangement with 4 replication during 2009. the main plots were to two irrigation regimes (T1=normal irrigation, T2=100mm evaporation from the surface of evaporation basin); sub plots were jointly three levels of plant densities (60, 80 &100 plant per m2) and two soybean cultivars (Williams & mutant clarck).The studied traits were seed yield, harvest index, seed oil percentage and oleic and palmitic acids Contents. The results showed significant differences among different level of irrigation, plant densities and cultivars. The highest values of measured traits were achieved in normal irrigation and the lowest in water stress condition. Increase of plant density from 60 to 100 plant per m2 decreased all the traits. The seed yield and harvest index of cv. Williams was more than cv. Mutant clarck, while seed oil percentage of cv. Mutant clarck was higher than that of Williams. However, palmitic and oleic acids contents were not significantly different in two cultivars. Maximum and the minimum seed yield were obtained in the highest and lowest plant densities respectively. Increased of plant density from 60 to 100 plants per m2, decreased seed oil percentage in both irrigation regimes and both cultivars. Increase of plant density also decreased palmitic and oleic acids contents in both irrigation regimes and both cultivars.

This study was conducted to evaluate of water stress and different nitrogen usage effects on yield and yield components of castor bean, as a factorial experiment based on Random Complete Block (RCB) Design. In this study irrigation and nitrogen factors were evaluated in four levels with three replications which irrigation levels were normal irrigation, water holding in stemming, flowering and seed filling stages and also nitrogen usage levels were 0, 60, 120 and 180 kg/ha, respectively. The studied characters were plant height, leaf number, main stem length, stem diameter, node number in main stem, seed yield, seed oil percentage and seed oil yield.The results indicated that different water stress treatments of had significant effect and nitrogen usage on all of studied traits (P=0.01).The interaction of water stress and nitrogen usage factors was significant in all of traits (P=0.01). According to the results, the highest seed yield and seed oil yield were in normal irrigation level (1.992 and 1.035 ton/ha, respectively) and the level of 180 kg/ha nitrogen usage (2.566 and 1.292 ton/ha, respectively). Also the least amount of seed yield and seed oil yield was in water holding level in the stemming stage and no usage of nitrogen. Totally between experimental treatments, the highest seed yield and seed oil yield were in 180 kg/ha nitrogen usage and normal irrigation levels.