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19. Combining ability for grain yield of early maize lines
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20. Use of recurrent selection in middle late synthetic maize population. III. Results of the third cycle and effect of breeding in synthetic “1/2005”
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21. Investigation and estimation of the influence of the vegetation period and age of the wood over the physico-chemical properties of walnut oil
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22. Phytochemical analysis of Ranunculus arvensis L. and Ranunculus repens L. (ranunculaceae Juss)
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23. Pollen morfology characteristics and volatility of Ranunculus arvensis L. (Ranunculaceae Juss.)
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24. Nitrogen deficiency in cucumber plants and possibilities of recovery with foliar nutrition
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25. Hygienic evaluation of buildings for breeding of growing Mulards
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26. State and trends of pig-breeding development in Bulgaria
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27. Growth and development of female cattle of the Rhodope shorthorn cattle breed. Body constitution indices
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