Turkish Journal of Field Crops

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90 232 311 26 79

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

STUDIES ON THE IMPROVEMENT OE SEED GERMINATION IN CAPER

ZIHIN YILDIRIM

Abstract

Caper seeds were soaked in various H2SO4. GA3 concentrations and GA3 applications during March-May periods in 1997 and l998.The suitable treatments to increase germination rates were found as IS minutes in H2SO4+24 hours in 100 ppm GA3 concentration and 30 minutes in H2SO4+24 hours in $0 ppm GA3 concentration.

Keyword: improvement of seed, increase germination rates ,

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