Evaluation and selection of new tomato (Lycopersicon esculentum Mill) lines with high yields and good fruits
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Abstract
Institute of Agricultural Sciences (INCA), aimed at selecting
and evaluating the new tomato lines and varieties of
indeterminate growth, obtained in the tomato breeding program
at INCA recently introduced in the country, as they can reach
high yields and good fruits in the new tomato technologies
employed for commercial production. This experiment was
developed within 1999-2000 and 2002-2003 winter seasons.
14 F1 hybrids were evaluated to obtain F2 generation and select
the best plants by picking one fruit from each, until F5
generation, and comparing six of them with the commercial
hybrid FA-180 and Floradel, Saint Pierre and Virginia cv. The
substrate was a mixture of Red Ferralitic soil and organic matter
(2:1). Morphological and phenological evaluations as well as
yield determinations were made. A randomized complete design
was used, putting 10 plants per variety at 70 cm between rows
and 25 cm between plants. The lines 25, 31, 26, 24 and Virginia
cv. were selected for high-scale tests and to be used as parents
in future breeding programs.
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