Published in Scientific Papers. Series A. Agonomy., Vol. LVI
Written by Tzvetan KIKINDONOV, Georgi KIKINDONOV, Kalin SLANEV, Stanimir ENCHEV
It has been studied the growth of biomass and the dry matter accumulation during the stages of brooming, flowering, milky-wax maturity and technical maturity of Sudangrass and Sorghum x Sudangrass hybrids. The tests were performed in the Agricultural Institute – Shumen, Bulgaria during 2010 and 2011. The parameters of development and the intensity of dry matter accumulation were determined by biometrical analysis. The vegetation rainfalls have the biggest effect on the productivity of the Sudangrass and its hybrids. The development of Sorghum and Sudangrass is strongly affected by the vegetation temperature sum.Theshortened vegetations due to the extreme agroclimatic deviations are compensated by intensive dry matter accumulation. The parameters of biomass and dry matter accumulation are manifested with different levels depending on the genotype, as with the Sorghum x Sudangrass hybrids the high productivity is combined with intensive dry matter accumulation.
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