RESEARCH CONCERNING THE MAIN PRODUCTION CHARACTERS OF LOLIUM PERENNE IN THE CONDITIONS OF WESTERN ROMANIA PUBLISHED

Luminita COJOCARIU, Mihaela CORCHES, M. HORABLAGA, V.-D. LALESCU, Carmen DURĂU, Alina CĂLUŞERU, I. SĂNDOIU
Introduction of new varieties of forage grasses, more powerful in terms of quality and quantity, is a must, while the establishment of intensive grassland is the main measure capable of increasing the fodder production. Lolium perenne is one of the most important forage grass in temperate zones, used successfully in the Netherlands, in feeding dairy cows.( Gilliland T. J., 2002,  Smit H. J, et al., 2005.,  Sokolović, D., 2010.). Perennial ryegrass (Lolium perenne L.) is one of the most important perennial cool-season forage grasses. It is highly productive, with the highest nutritive value among forage grasses, adapted for frequent defoliation and grazing. Market demands focus interest of perennial ryegrass breeders to production of cultivars with high, stable yield and good dry matter quality, tolerant to drought, frost and other stressful environmental conditions, with different maturity (Sokolović D et al., 2010). Knowing the characteristics that have varieties of forage plants is of great importance for the cultivator, because only by knowing them the forage plants can be capitalized (Hartmann S., and Gerstle C., 2003., Smit H. J, et al., 2005). This paper presents the behavior of a foreign genotype of Lolium perenne, namely Calibra, in the climatic conditions of Timisoara, in order to enrich with new varieties of fodder plants. Were studied the following biometric indices: vegetative shoot height, number of shoots, shrub weight and foliar surface. The data analysis showed that the variety Calibra performed well, recording values ​​of 37.04 cm in the height of shoots, an average of 46 shoots / plant, and the average weight was 471.25 g and the foliar surface was 33.37 cm2. Interpretation of data obtained from the measurements mentioned above was processed by conventional methods of statistical analysis (correlation and regression analysis). There were performed correlational and linear regression analyses of the main characters in order to evaluate the potential production of Lolium perenne, variety Calibra. This variety has adapted to the climate of Timisoara, has a high genetic homeostasis, and is recommended for culture in the Banat
Lolium perenne, Calibra, production characters, linear dependences
Presentation: oral

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