Articles
SELECTION OF TOMATO FOR FRESH MARKET UNDER IRRIGATION IN SOUTHERN RUSSIA
Article number
412_9
Pages
92 – 98
Language
Abstract
Selection work is focused on breeding transportable tomato varieties of various terms of ripeness, resistant to diseases and yielding fruits with good tasteful and nutritional quality.
In recent years, new market varieties with round shaped fruits yielding 80–120 t/ha have been bred: the early variety ‘Aran’, 104–110 days from germination to the beginning of ripening, plant of usual tyoe of 35–40 cm by height, fruits of 80–120 g by weight, soluble solids content of 5.0–5.2%, resistant to cracking, blossom end rot and leaf mosaic virus; the midseason variety ‘Astol’, plant of usual tyoe of 69–72 cm by height, with fruits weighing 140–180 g, jointless pedicle, simultaneous ripening, resistant to blossom end rot, leaf mosaic, tolerant to alternariosis, soluble solids content of 5.2–5.5%; the mid-season variety ‘Astrakhansky’, bushy plant of 60–65 cm by height with very tasteful fruits of 100–130 by weight, resistant to cracking, blossom end rot, leaf mosaic, broomrape and alternariosis, soluble solids content 5.2–5.6%. In the course of selection, it was noted that a higher intensity of greenback (U gene) increased sweetness and total tasteful appreciation of fruits as compared with allelic lines without greenback (u gene). Elimination of greenback through selection (transfer of u gene) results as a rule, in increased resistance to cracking and to necrosis of fruits.
In recent years, new market varieties with round shaped fruits yielding 80–120 t/ha have been bred: the early variety ‘Aran’, 104–110 days from germination to the beginning of ripening, plant of usual tyoe of 35–40 cm by height, fruits of 80–120 g by weight, soluble solids content of 5.0–5.2%, resistant to cracking, blossom end rot and leaf mosaic virus; the midseason variety ‘Astol’, plant of usual tyoe of 69–72 cm by height, with fruits weighing 140–180 g, jointless pedicle, simultaneous ripening, resistant to blossom end rot, leaf mosaic, tolerant to alternariosis, soluble solids content of 5.2–5.5%; the mid-season variety ‘Astrakhansky’, bushy plant of 60–65 cm by height with very tasteful fruits of 100–130 by weight, resistant to cracking, blossom end rot, leaf mosaic, broomrape and alternariosis, soluble solids content 5.2–5.6%. In the course of selection, it was noted that a higher intensity of greenback (U gene) increased sweetness and total tasteful appreciation of fruits as compared with allelic lines without greenback (u gene). Elimination of greenback through selection (transfer of u gene) results as a rule, in increased resistance to cracking and to necrosis of fruits.
Authors
Y.I. Avdeyev
Keywords
Lycopersicon esculentum, varieties, resistance, gene, soluble solids
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