ASPECTS OF GROWTH AND DEVELOPMENT OF SHOOTS IN THE SHRUBS OF ALOPECURUS PRATENSIS L. PUBLISHEDValentin Leneschi, Luminiţa Cojocariu, Marinel Horablaga, Dacian V. Lalescu
The problem of intensive production is of stringent actuality, being the main leverage in increasing herds and livestock production. In this sense it has an important role in widening its product range forage plants, in our case is about the species Alopecurus pratensis L. Perennial forage grasses from which Alopecurus pratensis L. is part of, is an important source of fodder, due to their special agrobiological attributes ie continuous forming of nodes basal shoots, leaf growth in the basal meristem not destroyed by pastures. Among these species, Alopecurus pratensis L. opens the opportunity to achieve outstanding productions by the ability to adapt to a wide range of environmental conditions but also by the character of production (Luminita Cojocariu, 2005). Morphology of grasses can be conceptualized as a hierarchical arrangement of subunits or structural modules (Briske 1991). Studies required for plant growth and development that are particularly important, so that shoots of this species and forage grasses in general are closely linked with production. Biological material was studied on shoots development comprises 10 biotypes (Remetea Mare, Topolovăţu Mare, Chizătău,, Lugoj, Traian Vuia, Faget, Sinersig, Buzias, Cheveresu Mare, Albina.) collected in 2007 in Banat. Studied biotypes were sown in pots of vegetation in autumn 2007, then in the spring of 2008 were transplanted in field of research at the University of Agriculture And Veterinary Medicine Timisoara Sciences. Observations on the biological (number of shoots, diameter shrubs or made during the vegetation period, after the third mowing in autumn 2008 falling on to autumn 2009. The maximum number of shoots was recorded in first year averaged 33.3 on the Buzias biotype and the minimum number of Traian Vuia biotype (23.5); in second year maximium was Remetea Mare (53.7) biotype and minimum was recorded at biotype of Traian Vuia (38.2). With regard to the shrubs diameter in first year, the minimum is registered to biotype of Traian Vuia (15.3cm) and the maximum of the Albina (20.3cm) biotype, in second year returned minimum of Faget biotype (22.8cm) and the maximum at the Remetea Mare (30.3cm) biotype.
Alopecurus pratensis L.; biotypes; number of shoots; diametrer shrubs