Turkish Journal of Field Crops

Phone:

90 232 311 26 79

Email:

contact@field-crops.org

Address:

2. Beyler İş Hanı, No: 313 Kat: 3 Konak-İzmir

EFFECTS OF ROW SPACING AND SEEDING RATE ON HAY AND SEED YIELD OF EASTERN ANATOLIAN FORAGE PEA (Pisum sativum ssp. arvense L.) ECOTYPE

Mustafa TAN, Kader KURSUN KIRCI, Zeynep DUMLU GUL

Abstract

The Eastern Anatolian forage pea ecotype generally has a thin stem, small leaves and small seeds. The ecotype is 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 other characteristics of the Eastern Anatolian forage pea (Pisum sativum ssp. arvense L.) ecotype. Experiments were carried out in randomised complete blocks design with three replications under irrigated conditions of Erzurum during the years 2010 and 2011. Three different row spacing (20, 40 and 60 cm) and four different seeding rates (60, 90, 120 and 150 kg ha-1 ) were used in experiments. Hay yield, hay crude protein, ADF and NDF ratios, seed yield, straw yield, biological yield and harvest index parameters were investigated in this study. Results can be summarised as follows: Row spacing and seeding rate had significant effects on dry matter and seed yield of the forage pea. Based on the results of the present study and under Erzurum conditions, it was recommended that the Eastern Anatolian forage pea ecotype should be cultivated with 40 cm row spacing and 120 kg ha-1 seeding rate for hay yield and with 40 cm row spacing and 90 kg ha-1 seeding rate for seed yield.

Keyword: Forage pea, ecotypes, seed yield, plant traits ,

Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Erdal GONULAL, Suleyman SOYLU, Mehmet SAHIN

Abstract

A field experiment was conducted in the Wielkopolska region at the Gorzyń Research Station, Poland (52.34°N, 15.54°E) in Central Europe. The study was conducted over a 3-year period (2017, 2018, 2019) as a two-factorial design with four replications in the RCBD. The aim of the research was to determine the effect of the cultivar (‘Bolero’, ‘Tytan’) and the inoculation (Nitragina–seeds inoculation, Nitroflora I–seeds inoculation, Nitroflora II–soil inoculation, HiStick® Lupin–seeds inoculation) on plant development, seeds chemical composition and yielding of narrow-leaved lupin. The weather conditions and experimental factors significantly influenced on productivity of narrow-leaved lupin ‘Tytan’. Drought during the growing season reduced seeds and protein yields. After inoculation of HiStck the seeds yield was significantly greater by 12.4% (p < 0.01) and the protein yield after application of Nitroflora I or HiStick by 13.9% (p < 0.01) and 19.2% (p < 0.01), respectively. Correlation coefficients showed strong relations between number of pods and seeds per plant in both cultivars regardless of the inoculation variant, however the strongest relations in both cultivar were proved on HiStick treatment.
Keyword: Biological nitrogen fixation, chemical composition, legumes, protein efficiency, yielding