Abstract
In the period 2005-2007 trials with five oats populations (Krivogastani,Trebenishta,Radolishta, Bugarija, Kuceviste) and three oats varieties Rajac, Slavuj and Lovcen), were carried out. The trials were set up in conditions of organic and conventional production. The main objective of this investigation was to determine the differences in some morphological characteristics of the tested genotypes, which directly or indirectly affect the yield, and also, to determine the differences that came up as a result of the different systems of production (conventional and organic production). The average height of the oats plant cultivated in organic production (114,4 cm) was higher absolutely by 2,2 cm or relatively by 2.0% than the height of the oats plantcultivated in conventional production. The system of production showed no effect on the length of the panicle. The yield of oats grain by panicle in organic production (3,30 g) was higher absolutely by 0,3 g or relatively by 9.1% than the yield of oats grain by panicle in conventional production (3,0 g). The system of production did not impact significantly on the percentage of the glumes. The lowest percentage of glumes in both systems of production gavevariety Rajac.
Highlights
Oats (Avena sativa L.) is a crop which is mainly grown for grain
The average height of the oats plant cultivated in organic production (114,4 cm) was higher absolutely by 2,2 cm or relatively by 2.0% than the height of the oats plantcultivated in conventional production
In the organic and conventional production the greatest height of oats plants was achieved in 2005, which means that the climate conditions have more impact on the plant height than method of production
Summary
Oats (Avena sativa L.) is a crop which is mainly grown for grain. The oats can be grown as green fodder, alone or in combination with annual leguminous such as peas and vetch. A diet with such fodder increases the lactation of the animals. Because of the high quality of oats grain, all other nutrients in the diet of cattle come down to the oat units (Vasilevski, 2004). Worldwide are in constant decline, mainly due to low and unstable yields, compared with wheat and barley.Reasons for low productivity of oats are growing poorly productive varieties and inadequate agrotechnics. According to Moule (1964), quote by Bogdanović et al (2000), the best indicator for the fertility of oats varieties is the number of oats grains into panicle and shorter stem
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