Determination of the Effect of Different Sowing Dates on Growth and Yield Parameters of Some Dry Bean (Phaseolus vulgaris L.) Varieties
I Halil Bayrak | S Ipekesen | B Tuba Bicer
The sowing date is one of the environmental factors that significantly affected the growth and development of dry beans. Recently, the rapid change of climate required arrangement in its sowing dates. This study aimed to evaluate the effect of different sowing dates (10/03/2018, 04/03/2018, and 04/05/2018) on the phonological, morphological, and yield performances of six dry bean varieties. The experiment was carried out at Dicle University, Faculty of Agriculture Department of Field Crops in the 2018 spring and summer seasons. The experiment established randomized complete blocks design in split plots with three replications. The sowing dates significantly affected the days to seed emergence, days to first flowering, days to 50% flowering, days to maturity, first pod height, number of branches per plant, pod width, plant weight, and pod weight per plant, number of pods per plant, number of seeds per plant, seed yield per plant, biological yield and seed yield. As the sowing date was delayed, there was a decrease in all traits. The highest biological and seed yield was in early to mid-March sowing (10/03/2018) date in Cihan and Aras-98 varieties (1610.90 kg ha-1, 1850.30 kg ha-1, respectively). The early sowing date provided better growth and development in cold tolerance varieties. Adabeyazi, Cihan and Ahlat varieties were the most tolerant to low temperatures, thus the crop growth and yield increased for these varieties in the early to mid-March sowing date.
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