A new semi-determinate tomato hybrid for early production

Abstract

By using the knowledge of the genetic constitution and the characteristics of the available tomato lines for selection, there were created several dozens of hybrid combinations characterised by semi-determinate habit, with large fruits and early maturing. These hybrids were tested in preliminary and comparative trials with the hybrids Balkan F-1, Balca F-1, Zar F-1, and some others as standard varieties. These tomato hybrids were grown earlier but they are grown even today in the early production, for the market in green houses and in the open field. The hybrid Marco F-1 was the best of all. its yield was 25 t/ha in the plastic-house (the same as in the standard), up to 32 t/ha in the open field (5 % more than in the standard). This hybrid was a few days later than Balkan, with the fruits weighting 200 grains (fruits were approximately 60 % heavier than in the standard). It possess the genetic V, F and Tm resistance.