Origin, breeding and qualities of the onion variety 'Jogeva 3'
1995
Jaagus, V. (Jogeva Plant Breeding Inst., Jogeva (Estonia))
Breeding of the onion variety 'Jogeva 3' began in 1940. Initial material descends evidently from the middle Russia Rostov region, from where the Russians brought it to the shore of the Lake Peipus. Onion 'Rostovi' as well as the Peipus onion is belonging to the group of bitter onions. They are rich in disaccharides and possess good storage quality. They should multiply periodically. After 2-3 vegetatively multiplied years at least one generatively multiplied generation has to follow, otherwise the variety begins to degenerate, Allium virus 1 Smith and Allium virus 2 Smith symptoms will appear. At the beginning of breeding work Peipus-onion was biologically and morphologically very heterogeneous. Individual selections began from 1945-1946, selected were plants with uniform onions, which were not infected with downy mildew. More perspective selections were cleared up by way of comparison in 1956. The best of them 'Jogeva 3' turned out to be high-yielding, with good storage quality, long dormancy and more resistant to downy mildew. 2000-10000 individual selections were estimated after harvest. 7-15 inbred lines to get new valuable generations were formed from the best individual selections. Continuously new samples were taken to the breeding process to prevent the potential yield losses accompanying inbreeding
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Estonian University of Life Sciences