Published in Scientific Papers. Series A. Agronomy, Vol. LXII, Issue 1
Written by Liliana VASILESCU, Olga STAN, Eugen PETCU, Alexandrina SÎRBU, Alexandru BUDE, Victor PETCU
A uniform emergence of barley plants in the field depends on their seed vigour potential and this index define the seed quality. The aim of this paper is to assess the germinative capacity and elements of seed vigour of some Romanian winter barley lines, estimated by two methods used at NARDI Fundulea. Thirty-five winter barley lines were tested under controlled conditions for different physiological traits to determine seed vigour index. The obtained results showed that at the second level of temperature (6°C), the length of shoot and seedling is significantly correlated with germination faculty (0.44**) and also the length of root and shoot with length of seedling (0.44** and 0.95***). The seed index vigour varied from 13.4 to 29.2 when was evaluated at 25°C and from 7.2 to 26.1 at 6°C. An increase tendency of root, shoot and seedling length at 6°C was noticed in average. The different level of temperature could be used for screening the winter barley lines developed in barley breeding program in order to promote genotypes which assure a fast and uniform emergence.
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