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Papers by Radmila Bojovic

The Journal "Agriculture and Forestry", 2019

The importance of sugar beet is great because it gives root yield of about 50 t ha-1 and 30-40 t ... more The importance of sugar beet is great because it gives root yield of about 50 t ha-1 and 30-40 t of fresh leaves and heads of beet that is used for feeding cattle. In the Republic of Serbia are favorable agro-ecological and soil conditions for the production of sugar beet. In the structure of total arable land of the Republic of Serbia, sugar beet accounts for about 2% where 94% of it is in Vojvodina, which has the most favorable climate and soil conditions, tradition and proximity of capacities for root production and processing. In addition to its adaptability to climatic conditions, sugar beet reacting quickly to changes in meteorological factors which greatly affect root yield and sugar content. In the three-year trials it was examined morphological characteristics and the amount of a-amino N in five genotype of sugar beet. According to the survey results, the largest number of leaves at the genotypes at technological maturity had the genotype Otis (35.33) while the smallest had had genotype Severina (15:53). Genotype Otis, as a whole, had the highest leaf area (X =10193.13 and Xmax = 11483.79), and the lowest had genotype Severina (X = 4242.33; Xmin = 3982.44). The lowest average value of the amount of α-amino N indicators were found for Chiara and Laetitia (X = 2.23). The observed traits were largely depended on the genotypes and years. Genetic variation is necessary for successful breeding.

Agriculture and Forestry, Mar 30, 2019

Due to the dominant role in world nutrition, wheat was given the character of a strategic product... more Due to the dominant role in world nutrition, wheat was given the character of a strategic product. Its participation in human nutrition is gradually decreasing in developed countries where changes in the nutrition structure have prioritized animal proteins. However, in underdeveloped countries where the phenomenon of hunger is present in a severe form, the main tendency is to provide a sufficient amount of it for the needs of the population's diet. The paper examines the influence of genotype/variety and site on winter wheat yield components: length of ears, number of spikelets in the spike, number of grains in the spike and mass of grains per spike, during 2016/17. The tested factors exhibited a different impact and a strong intensity of influence on the parameters covered by the research. The cultivation site had a statistically significant influence on the length of the ear (spike), the number of spikelets in the spike and the number of grains in the spike. Within the wheat yield components, the factor of the genotype / variety had higher influence on the length of the spike. The genotype G2 had a longer spike (8.62 cm), the number of spikelets in the spike (18.30), the number of grains in the spike (42.58), and the grain weight per spike (1.57).

Book of Proceedings, GEA (Geo Eco-Eco Agro) International Conference, 28-31 May 2020, Podgorica, Montenegro, 2020

Soybean [ Glycine max (L.) Merr.] is the most important legume because it is an essential source ... more Soybean [ Glycine max (L.) Merr.] is the most important legume because it is an essential source of dietary protein and oil for animal feed and food production. Good soil with well- planned program of fertilization is the main factor of soybean production. Soybean yield will be reduced when essential nutrients are deficient. Sufficient soil fertility combined with a well-planned fertilization program is a main component for high soybean production. The aim of this investigation was to estimate the effects of fertilization and seed inoculation on height of soybean plant in humid year. Two factors were tested: 1. CAN fertilization and 2. seed inoculation. Four treatments of CAN fertilization were tested: control - 0 kg N ha -1 ; 50 kg N ha -1 ; 100 kg N ha -1 and 150 kg N ha -1 . Two factors of seed inoculation (SI) were tested: without SI and with SI. Results showed that fertilizers and seed inoculation significantly increased the values of soybean productivity. Cost effective is the...

DESCRIPTION In the three year trials tested yield and quality of five sugar beet genotypes. Accor... more DESCRIPTION In the three year trials tested yield and quality of five sugar beet genotypes. According to results, highest average weight of root ( X =1.13 kg), as well as highest value of root mass (X max=1.35 kg) was recorded by variety Otis. Variation in yield by varieties was statistically significant. Highest yielding varieties were Chiara and Otis. Highest yielding variety Chiara had 97% higher yield than variety Severina, 36.76 t ha-1. Highest digestion individual and in average, have had varieties Severina and Irina while the lowest was variety Otis. Highest digestion stability had variety Irina (Cv=2.52%). Quality, namely technological root value largely depends of genotype. Coarseness of the root was in inverse proportion to the content of sugar.

Variability of Miscanthus morphological traits were the subject of two-year study (2010 and 2011)... more Variability of Miscanthus morphological traits were the subject of two-year study (2010 and 2011). Plant height, stem number and number of developed leaves per plant was studied in dependence of the applied rhizomes planting density (2 and 3 per m 2), as well as of applied nitrogen amount used for supplemental plant nutrition. The results showed that planting density had an impact on the investigated morphological characteristics of Miscanthus, while the affect of nitrogen was dependent on the weather conditions and distribution of rainfall, and was stronger during the first year at a maximum rate of this nutrient. In the second year, rhizomes planting density showed a stronger effect on the number of developed leaves per plant. Variation in number of stems per rhizome was evident in the planting year or in the second year, as well as among treatments. The number of leaves was increased by increasing nitrogen amounts, so in both years it was the largest at the maximum applied nitrogen amount of 100 kg ha-1. Usage of 100 kg ha-1 of nitrogen in the first year, produced plants with significantlly higher outgrowths number per rhizome compared to other applied variants. In the second year rhizomes planting density had a strong affect on the outgrowths number.

The Journal "Agriculture and Forestry", 2019

The importance of sugar beet is great because it gives root yield of about 50 t ha-1 and 30-40 t ... more The importance of sugar beet is great because it gives root yield of about 50 t ha-1 and 30-40 t of fresh leaves and heads of beet that is used for feeding cattle. In the Republic of Serbia are favorable agro-ecological and soil conditions for the production of sugar beet. In the structure of total arable land of the Republic of Serbia, sugar beet accounts for about 2% where 94% of it is in Vojvodina, which has the most favorable climate and soil conditions, tradition and proximity of capacities for root production and processing. In addition to its adaptability to climatic conditions, sugar beet reacting quickly to changes in meteorological factors which greatly affect root yield and sugar content. In the three-year trials it was examined morphological characteristics and the amount of a-amino N in five genotype of sugar beet. According to the survey results, the largest number of leaves at the genotypes at technological maturity had the genotype Otis (35.33) while the smallest had had genotype Severina (15:53). Genotype Otis, as a whole, had the highest leaf area (X =10193.13 and Xmax = 11483.79), and the lowest had genotype Severina (X = 4242.33; Xmin = 3982.44). The lowest average value of the amount of α-amino N indicators were found for Chiara and Laetitia (X = 2.23). The observed traits were largely depended on the genotypes and years. Genetic variation is necessary for successful breeding.

Agriculture and Forestry, Mar 30, 2019

Due to the dominant role in world nutrition, wheat was given the character of a strategic product... more Due to the dominant role in world nutrition, wheat was given the character of a strategic product. Its participation in human nutrition is gradually decreasing in developed countries where changes in the nutrition structure have prioritized animal proteins. However, in underdeveloped countries where the phenomenon of hunger is present in a severe form, the main tendency is to provide a sufficient amount of it for the needs of the population's diet. The paper examines the influence of genotype/variety and site on winter wheat yield components: length of ears, number of spikelets in the spike, number of grains in the spike and mass of grains per spike, during 2016/17. The tested factors exhibited a different impact and a strong intensity of influence on the parameters covered by the research. The cultivation site had a statistically significant influence on the length of the ear (spike), the number of spikelets in the spike and the number of grains in the spike. Within the wheat yield components, the factor of the genotype / variety had higher influence on the length of the spike. The genotype G2 had a longer spike (8.62 cm), the number of spikelets in the spike (18.30), the number of grains in the spike (42.58), and the grain weight per spike (1.57).

Book of Proceedings, GEA (Geo Eco-Eco Agro) International Conference, 28-31 May 2020, Podgorica, Montenegro, 2020

Soybean [ Glycine max (L.) Merr.] is the most important legume because it is an essential source ... more Soybean [ Glycine max (L.) Merr.] is the most important legume because it is an essential source of dietary protein and oil for animal feed and food production. Good soil with well- planned program of fertilization is the main factor of soybean production. Soybean yield will be reduced when essential nutrients are deficient. Sufficient soil fertility combined with a well-planned fertilization program is a main component for high soybean production. The aim of this investigation was to estimate the effects of fertilization and seed inoculation on height of soybean plant in humid year. Two factors were tested: 1. CAN fertilization and 2. seed inoculation. Four treatments of CAN fertilization were tested: control - 0 kg N ha -1 ; 50 kg N ha -1 ; 100 kg N ha -1 and 150 kg N ha -1 . Two factors of seed inoculation (SI) were tested: without SI and with SI. Results showed that fertilizers and seed inoculation significantly increased the values of soybean productivity. Cost effective is the...

DESCRIPTION In the three year trials tested yield and quality of five sugar beet genotypes. Accor... more DESCRIPTION In the three year trials tested yield and quality of five sugar beet genotypes. According to results, highest average weight of root ( X =1.13 kg), as well as highest value of root mass (X max=1.35 kg) was recorded by variety Otis. Variation in yield by varieties was statistically significant. Highest yielding varieties were Chiara and Otis. Highest yielding variety Chiara had 97% higher yield than variety Severina, 36.76 t ha-1. Highest digestion individual and in average, have had varieties Severina and Irina while the lowest was variety Otis. Highest digestion stability had variety Irina (Cv=2.52%). Quality, namely technological root value largely depends of genotype. Coarseness of the root was in inverse proportion to the content of sugar.

Variability of Miscanthus morphological traits were the subject of two-year study (2010 and 2011)... more Variability of Miscanthus morphological traits were the subject of two-year study (2010 and 2011). Plant height, stem number and number of developed leaves per plant was studied in dependence of the applied rhizomes planting density (2 and 3 per m 2), as well as of applied nitrogen amount used for supplemental plant nutrition. The results showed that planting density had an impact on the investigated morphological characteristics of Miscanthus, while the affect of nitrogen was dependent on the weather conditions and distribution of rainfall, and was stronger during the first year at a maximum rate of this nutrient. In the second year, rhizomes planting density showed a stronger effect on the number of developed leaves per plant. Variation in number of stems per rhizome was evident in the planting year or in the second year, as well as among treatments. The number of leaves was increased by increasing nitrogen amounts, so in both years it was the largest at the maximum applied nitrogen amount of 100 kg ha-1. Usage of 100 kg ha-1 of nitrogen in the first year, produced plants with significantlly higher outgrowths number per rhizome compared to other applied variants. In the second year rhizomes planting density had a strong affect on the outgrowths number.