Safoura Jafarnodeh; Ebrahim Zeinali; Afshin Soltani; Fatemeh Sheikh
Abstract
This experiment was carried out to study of the effects of seed size and seeding date on phenological, morphological and agronomic characteristics of faba bean under rainfed conditions in Gorgan. The experiment was conducted using ‘Barakat’ cultivar at the research field of Gorgan University ...
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This experiment was carried out to study of the effects of seed size and seeding date on phenological, morphological and agronomic characteristics of faba bean under rainfed conditions in Gorgan. The experiment was conducted using ‘Barakat’ cultivar at the research field of Gorgan University of Agricultural Sciences in 2013-2014 growing season. The experimental design was a split plot in a randomized complete block design with four replications. Planting dates (26 Nov., 19 Dec., 2013 and 11 Feb. and 10 Mar., 2014) and seed size (small, medium, large) were arranged in main- and sub-plots, respectively. According to the results, emergence rate of seeds planted in 26 Nov. and 10 Mar. was higher than the other two planting dates, and the emergence rate of small and medium seeds was more than large seeds. Also, time to maturity was 190 days on November planting date. Time to maturity was decreased with delay in planting date, and reduced to 86 days on March planting. The results showed a significant reduction of the number of branches per plant, number of pods per plant, number of seeds per pod and 100-seed weight which led to reduction in green pod and grain yield with delay in planting, respectively. Based on the results of this experiment, to achieve further yields of faba bean under rainfed conditions in Gorgan, early planting and use of larger seeds for planting is recommended.
Ebrahim Zeinali; Afshin Soltani; Mohammad Khadempir; Mahmood Tourani; Fatemeh Sheikh
Abstract
Gorgan is one of the most important regions for faba bean (Vicia faba L.) production in Iran. However, there is no enough quantitative information about the various aspects of production management of this crop plant. To investigate the effects of inter-row spacing, cultivar and seeding date on the yield ...
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Gorgan is one of the most important regions for faba bean (Vicia faba L.) production in Iran. However, there is no enough quantitative information about the various aspects of production management of this crop plant. To investigate the effects of inter-row spacing, cultivar and seeding date on the yield of green pod and grain, this experiment was carried out at research farm of Gorgan University of agricultural sciences in 2011-2012 growing season. The experimental design was a randomized complete block design as split-plot factorial with four replications. Inter-row spacing (30, 45 and 60 cm) and factorial of planting dates (15 Nov. and 23 Dec. 2011) and cultivars (Barakat and French) were arranged in main- and sub-plots, respectively. The results indicated non-significant effect of cultivar and the significant (P = 0.01) effects of seeding date, inter-row spacing and their interactions on the grain, green pod and biological yields, and pod number per plant, while the effects of cultivars were not significant, statistically. Based on the obtained results, any increase in inter-row spacing or delaying in planting of faba bean will reduce the grain, green pod and biological yields. The maximum yield of green pods and grain yield (21753 and 4530 kg ha-1, respectively) produced in normal planting date (15 Nov.) and 30 cm inter-row spacing. In contrast, the lowest grain and green pod yield (2527 and 13041 kg ha-1, respectively) obtained from delayed planting date (23 Dec.) and 60 cm inter-row spacing.