Analele Universităţii din Oradea -Fascicula Biologie CORRELATIONS BETWEEN PRODUCTIVITY ELEMENTS IN Lolium perenne L. SPECIES FOR NEW VARIETIES RESISTANT TO DROUGHT

Abstract. Perennial ryegrass is considered the most important perennial gramineous plant due to the many possibilities of use (grass and fodder) With the increasing emphasis put on increasing the area of green space, obtaining new biological forms -varieties of the main species of gramineous plants for turf, with increased resistance to drought and land during the summer, may represent an important objective of the research companies producing such seed In the present study, are given researches on correlations between productivity elements, obtained in an experiment that simulates conditions of severe drought soil, to different genotypes of the species Lolium perenne L., which is an ideal partner for simple and complex mixtures of turf. Establishment of correlations between key elements of productivity show to the breeder, in the selection work, choice of valuable genotypes consistent with the objectives of its program