Akademik Veri Yönetim Sistemi
International Journal of Sustainable Agriculture, cilt.11, sa.1, ss.9-18, 2023 (Hakemli Dergi)
Abstract:
The present study was conducted to determine the effects of glutamic acid treatments at different doses on yield and growth parameters of some sunflower varieties under Anbar-Iraq conditions in 2021. Glutamic acid treatments were practiced as foliar sprays at four different concentrations (0, 100, 200 and 300 mg l ) to three different sunflower varieties (Sakha, Amar and Ishaqi-1). Field experiments were conducted in 1 randomized blocks split-plots experimental design with three replications. Sunflower varieties were placed into the main plots and glutamic acid concentrations were placed into the sub-plots. The highest average stem height was measured as 194.25 cm, leaf area as 10188.70 cm, number of leaves per plant as 23.93 leaf plant , 21 plant dry weight as 181.22 g, seed weight as 49.17 g plant , seed yield as 4.87 t ha and biological yield as 11 17.98 t ha . The 100 mg l glutamic acid treatments of the variety Aqmar yielded the highest head diameter 11 (17.525 cm). The 100 mg l glutamic acid treatments of the variety Ishaqi-1 were superior in number of seeds 1 per head (850 seed plant ). The 100 mg l glutamic acid treatments of the variety Sakha were superior in 1000-11 seed weight (66.50 g) and harvest index (33.58 t ha ). As a result, the highest seed yield (5.49 t ha ) was 11 obtained with 300 mg l glutamic acid treatments in Ishaqi-1 sunflower variety.