Acta fytotechnica et zootechnica, 5, 2002, 3

Marek BARTA, Ľudovít CAGÁŇ
Prevalencee of Natural Fungal Mortality of Black Bean Aphid, Aphis fabae SCOPOLI on Primary Host and Two Secondary Hosts.... 57
Peter ONDRIŠÍK, Ivan ČERNÝ
Changes in the Content of Inorganic Nitrogen in Soil During the Growing Season of Winter Wheat.... 64
Valéria ŠUDYOVÁ, Svetlana ŠLIKOVÁ, Zdenka GÁLOVÁ
Testing wheat (Triticum aestivum L.) and Triticale (Triticosecale Witt.) Callus to Salt Tolerance.... 67
Adriana ŠUPOVÁ, Elena KUBOVIČOVÁ, Vladimír LANDA, Juraj PIVKO
A Comparison of the Ultrastructure of Bovine Embryos Produced in vivo and in vitro.... 72
Norbert GÁBORČÍK, Elemír TIŠLIAR, Eugen PAVLÍK
Chlorophyll Concentrations (SPAD values) of Selected Forage Grasses and Legumes.... 77
Ivan STRÁŇAY, Jaroslav ANDREJI
Quantitative Assessment of Ichtyofauna of the Upper River Turiec Over the Protected Area of the Huchen Reserve.... 80


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