Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 2
Written by Ion Nele IACOB, Cătălin Aurelian ROȘCULETE, Ramona Aida PĂUNESCU, Elena BONCIU
A collection composed of 220 wheat varieties of various origins was studied in terms of the water loss rate at 4 h and 24 h from the initial weighing of 6 flag leaves and through the relationship between the determinations on 15 ears of each variant of the analyzed assortment (ear length, number of spikelets/ear, ear density, number of grains/ear, weight of grains/ear, mass of 1000 grains, ear harvest index) on the one hand and yield, on the other. The lowest water loss at 4 hours was manifested by the Pajura variety (0.019) and at 24 h by the Izvor variety (0.343). The correlations between yield and each of the studied elements suggested that it is strongly correlated with the ear harvest index (r=0.208) and correlated with the thousand weight grains (r=0.150) in a positive sense. There wasn’t correlation between yield and the rate of water loss in 24 h, but the results obtained suggest possibilities to direct the behavior of wheat in drought conditions, if genes with a favorable effect are accumulated.
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