Mustafa TAN, Kader KIRCI KURSUN, Zeynep GUL DUMLU

Effects of row spacing and seeding rate on hay and seed yield of eastern anatolian forage Pea (pisum sativum ssp. arvense l.) ecotype

The Eastern Anatolian forage pea ecotype generally has a thin stem, small leaves and small seeds. The ecotypeis different from the improved breeds and thus cultural techniques for this ecotype are somehow different.Current study was conducted to investigate the effects of row spacing and seeding rate on yield and some othercharacteristics of the Eastern Anatolian forage pea (Pisum sativum ssp. arvense L.) ecotype. Experiments werecarried out in randomised complete blocks design with three replications under irrigated conditions ofErzurum during the years 2010 and 2011. Three different row spacing (20, 40 and 60 cm) and four differentseeding rates (60, 90, 120 and 150 kg ha -1) were used in experiments. Hay yield, hay crude protein, ADF andNDF ratios, seed yield, straw yield, biological yield and harvest index parameters were investigated in thisstudy. Results can be summarised as follows: Row spacing and seeding rate had significant effects on drymatter and seed yield of the forage pea. Based on the results of the present study and under Erzurumconditions, it was recommended that the Eastern Anatolian forage pea ecotype should be cultivated with 40 cmrow spacing and 120 kg ha -1 seeding rate for hay yield and with 40 cm row spacing and 90 kg ha -1 seeding ratefor seed yield.

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