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2013, vol. 37, iss. 1, pp. 128-137
Effect of sowing dates, varieties and sowing densities on the wheat grain yield in 2010/11 year
aUniversity of Novi Sad, Faculty of Agriculture
bInstitute of Field and Vegetable Crops, Novi Sad
Project:
Modern breeding of small grains for present and future needs (MESTD - 31066)

Keywords: wheat; sowing dates; sowing densities; varieties; grain yield
Abstract
Investigation of the impact of sowing time and density on the yield of two winter wheat varieties was carried out at the experimental field of Institute of Field and Vegetable Crops in 2010/11. year, as part of long-term field experiment under the name of 'Sowing dates'. In the average for both cultivars and all four densities the highest grain yield of wheat was obtained in the first sowing date and was significantly higher only in relation to the third date. Grain yield showed a tendency to decrease with delayed sowing. Based on the equation of linear regression, it could be concluded that the calculated regression averaged grain yield by sowing dates is 635 kg ha-1. Analyzing the effects of increasing sowing density on grain yield, yield was increased to 500 viable kernels/m2, and then decreased with further increase in sowing density. Looking at the differences in grain yield between different varieties and at the same sowing density, it was observed that at densities of 300, 500 and 700 kernels/m2 yield of variety Zvezdana was slightly higher than at NS-40S, and only when the density of 900 kernels/m2 cultivar NS-40S achieve higher yields.
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article language: Serbian
document type: Original Scientific Paper
published in SCIndeks: 02/12/2013

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