MODIFICĂRI FENOTIPICE ŞI CITOLOGICE LA PLANTELE DE SPARCETĂ (Onobrychis viiifolia Scop) TRATATE CU RADIAŢII GAMMA

Abstract

PHENOTIPICAL AND CITOLOGICAL MODIFICATIONS AT SAINFOIN (Onobrychis viiifolia Scop) TREATED WITH GAMMA RAYS In order to make the experiences it was used the “Splendid” sainfoin cultivar, created at USAMV Cluj. To induce the mutations there were used gamma rays in doses of 25, 50, 75 and 100 Kr. The treated seeds were sown on a certain chosen field, the plant being watched in M1 and M2 generations, respectively the 2nd and the 3rd vegetation year. It was followed the effect of the mutagen agents at the level of some productivity elements as plants` height, weight, offspring’s number and flowering number on plants. It was noticed that in general, mutagen agents have a depression effect upon the productivity elements. Concerning the effect of gamma rays upon the frequency of chromosomal aberrations, it is noticed a direct correlation between mutagen dose and aberrations frequency