EFFECTIVENESS OF SELECTION OF WHEAT TO MODERN REQUIREMENTS FOR SUSTAINABLE DEVELOPMENT OF AGRICULTURE III. ENERGY PRODUCTIVITY OF CROPS

Elisaveta Vasileva, Zlatina Ur

Abstract


Aim of the study was to conclude on adaptation of modern varieties to the requirements of sustainable agriculture and hence the effectiveness of their methods of selection with respect to these requirements. The comparison between genotypes in two directions - by the selection methods by which they were established and according to the time of their creation. Energy assessment shows that the gross energy yield of grain is higher ( in average 5% over standard ) for varieties produced by the methods of the Intervarietal hybridization and during the period 1995 to 1999. While absolute maximum values of the energy productivity of grain (at N18) and maximum average total gross energy productivity of crops (4% above standard) were detected in genotypes generated by the methods of mutagenesis by irradiation with gamma rays. Absolute maximum value of the energy productivity of crops were reported in cultivar Zdravko (at N18), which was established by the method of plant biotechnology by combining and somaclonal variation.

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New knowledge Journal of science is financed by the National Science Fund of the Republic of Bulgaria - contract № КП-06-НП1/5 of 17.12.2019 in the competition of Bulgarian scientific periodicals – 2019

New knowledge Journal of science is financed by the National Science Fund of the Republic of Bulgaria – contract № ДНП 05/52 от 22.12.2016 in the competition of Bulgarian scientific periodicals – 2016

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