Document Type : Original Article
Authors
1 Faculty member
2 South Khorasan Agricultural and Natural Resources Research and Education Center
Abstract
Introduction: Establishing the optimal planting date and selecting the most suitable ecotype are essential initial steps in maximizing yield. This study was carried out with these objectives in mind, contributing to the advancement of saffron cultivation in Khash County.
Materials and Methods: A research study was carried out to assess the impact of planting date and ecotype on the yield of Saffron (Crocus sativus L.) at the Agricultural and Natural Resources Research Station in the Khash region. The study employed a split-plot design based on a randomized complete block design with three replications. The main plots consisted of four planting dates: August 11, August 27, September 11, and September 27, while the sub-plots included three ecotypes: Taybad, Birjand, and Ghaen. Measurements taken included the fresh and dry weight of the stigma style, the dry weight of the stamen, and the number of flowers.
Results: The results from a three-year combined analysis indicated a significant interaction between planting date and ecotype at the 1% level. The highest values recorded for fresh and dry weight of the stigma style, dry weight of the stamen, and flower count were 72.69 kg/ha, 5.82 kg/ha, 4 kg/ha, and 56.96 flowers, respectively, observed at the interaction of the September 11 planting date and the Birjand ecotype.
Discussion: Birjand ecotype exhibited superior fresh and dry weights of stigma and pistil, dry weight of stamens, and flower count compared to the Qaen and Taybad ecotypes. The differing climatic conditions of the regions from which the ecotypes were collected may contribute to the variations in yield and the traits studied in this experiment. Previous studies indicated. The date of planting in September is a critical factor that significantly impacts the yield of agricultural products, and enhancing both the quantity and quality of the harvest.
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