Sjemenarstvo, Vol. 12 No. 4-5, 1995.
Izvorni znanstveni članak
MATURITY STAGES OF WINTER WHEAT AND WINTER BARLEY SEEDS IN RELATION OF THE SPROUTING ENERGY AND GERMINABILITY
Julijo Martinčić
; Poljoprivredni fakultet Osijek, Sveučilište Josip Juraj Strossmayer
Vlado Guberac
; Poljoprivredni fakultet Osijek, Sveučilište Josip Juraj Strossmayer
Sažetak
Investigations concerning influence of different maturity stages of winter wheat and winter barley (cultivars Žitarka and Mihael) upon the sprouting energy and seed germinability were conducted at the Faculty of Agriculture in Osijek in 1994. The seed specimens were taken on trial in four different maturity stages: the end of milk-, wax-, the beginning of the full maturity- and full maturity stage, and some laboratory investigations were set in four repetitions. Based on the obtained values and their statistical elaboration, some differences in the sprouting energy, which were statistically very significant at wheat (**) and statistically no significant at barley (ns) were revealed. The highest average value of the sprouting energy at both cultivars appeared at the full maturily stages and the lowest one was obtained at the end of the milk stage. Some similar results were also obtained at the total germinability for the both cultivars. The revealed differences in the total germinability at wheat, but also at barley are statistically very significant (**). The highest average germinability at both cultivars appeared at the full maturity- and the lowest one at the end of the milk stage. The weight of 1000 grains, at both cultivars, had increased proportionally from the end of the milk stage and had its highest values in the full maturity stage. On the basis of the obtained mean values it can be concluded that the differences which appeared concerning the sprouting energy and the germinability, at both cultivars, are not explicity high (4,5 %the highest one), which can be very important from the practical point of view. Under the conditions of very wet years (June is according to an average obtained in several years the rainiest month for the area of Slavonia and Baranja), the harvesting of the seed-barley crop could be conducted earlier, in order to avoid some negative climatic influences upon the quality of seed-goods, with a seed drying-up, without any consequences for the seed germinability. A so called „heat stroke“, caused by high temperatures, often occurs at wheat in its maturing stage. Therefore, an earlier harvesting would make it possible for the „heat stroke“ to be avoided, without any danger of a higher germinability loss.
Ključne riječi
Hrčak ID:
167850
URI
Datum izdavanja:
21.6.1995.
Posjeta: 998 *