Effect of Different Sowing Times and Sowing Densities on the Agronomical and Technological Traits in Gümüşhane Sugar Bean

Locally adapted Landraces are considered as valuable genetic resources, important income sources for local bean producers and consumers' preferences. A limited number of studies have been carried out on different sowing times and densities in landraces of common bean (Phaseolus vulgaris L.). To present alternative options for farmers, especially new ones, this study aimed to reveal the effect of different sowing times and densities on the agronomical and technological traits of a common bean known as Şeker fasulye (sugar bean) in Gümüşhane, Türkiye. The study was conducted in a field of farmer in Gümüşhane in three different sowing times (22 May, 6 June, 21 June 2020) and six sowing densities (30×5 cm, 30×10 cm, 30×15 cm, 45×5 cm, 45×10 cm, 45×15 cm) using split-plot design in randomized blocks. The highest grain yield was obtained in sowing densities of 30×10 cm (8.96 t ha-1) and 30×15 cm (8.87 t ha-1) on 22 May. As “a golden rule of plant production”, the early sowing time (22 May) is recommended to the farmers. Also, 30×15 cm sowing density is suggested to the producers due to the less seed requirements for the agronomical and technological traits in landrace of common bean (Gümüşhane Sugar Bean).