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Приказ резултата 161-165 од 165
Effect of plant density on grain yield and moisture content in maize hybrids / Uticaj gustine useva na prinos i sadržaj vlage u zrnu hibrida kukuruza
(Savez poljoprivrednih inženjera i tehničara, Beograd, 2004)
A two-year trial (2002-2003) was conducted in order to study the effect of plant density (30,000, 40,000, 50,000 and 60,000 plants ha-1) and vegetation length (ZPSC 434, ZPSC 680 and ZPSC 735) of hybrids on grain yield and ...
Descriptions of two new species of eriophyid mites, (Acari : Prostigmata : Eriophyidae) common in Greece and Serbia
(Oxford Univ Press Inc, Cary, 2004)
Two new species of mites in the family Eriophyidae, Calepitrimerus crataegi sp. nov. collected from Crataegus spp. and Platyphytoptus juniperi sp. nov. collected from juniperus oxycedrus L. and juniperits communis L., are ...
Management of tomato bacterial spot in the field by foliar applications of bacteriophages and SAR inducers
(Amer Phytopathological Soc, St Paul, 2004)
Various combinations of the harpin protein, acibenzolar-S-methyl, and bacteriophages were compared for controlling tomato bacterial spot in field experiments. Harpin protein and acibenzolar-S-methyl were applied every 14 ...
The influence of different proportions of Holstein - Friesian genes on reproductive and productive traits of first calving Simmental cows / Uticaj udela gena crvenog holštajna na reproduktivne i proizvodne osobine prvotelki simentalske rase
(Institut PKB Agroekonomik, Padinska skela, 2004)
Certain reproductive and performance traits of first calving Simmental cows, as well as the demonstration of those traits depending on the participations of different proportions of Red Holstein-Friesian genes (HF), were ...
Prevention and eradication staphylococcal mastitis of cow / Sprečavanje pojave i suzbijanje stafilokoknog mastitisa krava
(Institut PKB Agroekonomik, Padinska skela, 2004)
Staphylococcal mastitis represents the most frequent form of cow mastitis in intensive milk production and a high economical problem as well. Prevention and eradication of this type of mastitis asks for consistent and ...