Grain yield of new Croatian winter wheat cultivars in correlation with sowing rate
2005
Guberac, V. | Maric, S. | Bede, M. | Kovacevic, J. | Drezner, G. | Lalic, A. | Josipovic, M. | Krizmanic, M. | Juric, T. | Kis, D.
The aim of this research was to examine influence of sowing rate on grain yield of four new winter wheat cultivars, taking in account their genetic characters. Statistical analysis of the obtained results showed that the sowing rate influence on the grain yield was not statistically significant. On the other hand, various sowing rates had highly significant influence on the ear number per a unit area. The largest number of ears was achieved by the sowing rate of 700 germinable seeds/m <sup>2</sup> (794.8 ears/m <sup>2</sup>).Difference in grain yield between examined cultivars was highly significant (P<0.01) while the difference in number of ears per a unit area was significant (P<0.05). The highest average yield and highest number of ears in the two-year period were achieved by the cultivar AG 5.12 (8.56 t/ha and 770 ears/m <sup>2</sup>).Since a satisfactory and statistically significant grain yield was achieved, even with a lower sowing rate, both during and in the average of the two year research, the author’s advice wheat producers to apply the above mentioned. In this way total production costs would be decreased to a lower rate.
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