Orta Karadeniz Bölgesinde Nohut İçin Uygun Ekim Zamanının Belirlenmesi

Abstract

Fanners at the Math Transitional Zone, where chickpea production is a common practice, sow chickpeas in the first half of May to avoid Ascochyta Blight diseases. However, after planting the diy season starts. Early sowing of chickpeas became feasible in the last two decades by improving Ascochyta Blight tolerant cuftivars. The chickpea cultivars Damla 89, Tasova 89, Canitez 87, Eser 87 and FLIP 84-19 were tested in 6 planting tunes in order to determine optimum planting time and changes in agronomic traits. The experiments were conducted in Tasova (Amasya) in 1990 and 1993, and in Gokhoyuk State Fann (Amasya) in 1992. 1993 and 1994. The planting times were different in years due to soil moisture availability. However, all plantings were done in four months time between Februaiy and May. Combined analysis over years or locations by ANOVA were not possible because of different planting times in years or locations. Therefore, the data were combined by regression analysis. The combined analysis showed that yield decreases as the planting time delayed. Separate analysis of each experiment gave different trends between yield and planting times in years or locations. However, it may be suggested that chickpeas can be sown as early as possible after the mid March. Chickpea yield may be increased and agronomic traits would nol negatively affected if chickpeas planted two months earlier than conventional sowing time. Damla 89 was suitable for early sowing.