Influence of seeding density and seeding date on the characters of yield structure components and the yield of winter wheat cultivars on light soil
2007
Weber, R. | Biskupski, A.,Instytut Uprawy Nawozenia i Gleboznawstwa, Pulawy (Poland). Zaklad Herbologii i Technik Uprawy Roli, Wroclaw
The research aimed at the analysis of the influence of selected yield characters on the yield of winter wheat cultivars depending on the seeding date and density. Experiments were carried out over 2004-2006 at the Agricultural Experiment Station, the Institute of Soil Science and Plant Cultivation, Jelcz-Laskowice, on good rye complex soil. The following factors were analysed: factor I - dates of winter wheat seeding: September 14-16, October 1-3, October 15-17. Factor II - two seeding densities: l1 - 300 grains/square m, l2 - 450 grains/square m. Factor III - winter wheat cultivars: Finezja, Rywalka, Kobiera, Satyna, Bogatka and Zawisza. Early seeding and at optimal dates resulted in higher yields of winter wheat cultivars as compared with seedlings sown at the date delayed by two weeks. A decreased seeding density at the date two weeks earlier as compared with the optimal date can enhance yields in some winter wheat cultivars. Higher yields in Kobiera and Satyna depended on an increased number of heads per area unit and the weight and number of grains per head
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