The influence of temperature on beginning of vegetation in apricot

Abstract

During winter periods 1998-99. and 1999-00. we were investigated water content in apricot branches and flowering time and its dependence on air temperature at the experimental school property Radmilovac. We have compared our results with temperature conditions of Radmilovac and time of flowering for determines interactions between increase of water in branches, time of flowering and air temperatures. Cultivar Cegledi orijaš had the earliest beginning of vegetation and this cultivar shows the most rapid reaction depend on air temperature changes. Some cultivars, like Zamorozoustojčivij and Roksana have good stability. In these cultivars change of water content in branches is the slowest.

U periodu zime 1998.-99. i 1999.-2000. ispitivali smo početak vegetacije izražen preko povećanja sadržaja vode u grančicama kod šest sorti kajsije na lokalitetu Radmilovac. Dobijene rezultate smo upoređivali sa temperaturnim uslovima Radmilovca i vremenom cvetanja sorti, kako bi ustanovili međusobnu povezanost između povećanja vode u grančicama, vremena cvetanja i temperature vazduha. Sorta kod koje je uočeno najranije kretanje vegetacije, odnosno sorta koja je najosetljivija na temperaturna kolebanja je Cegledi orijaš. Sorte koje ispoljavaju najveću nezavisnost u pogledu promene temperature vazduha su Zamorozoustojčivij i Roksana.