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Titolo:
A protocol to avoid precocious flowering of sunflower plantlets in vitro
Autore:
Ivanov, P; Encheva, J; Ivanova, I;
Indirizzi:
Inst Wheat & Sunflower Dobroudja, Gen Toshevo 9520, Bulgaria Inst Wheat & Sunflower Dobroudja Gen Toshevo Bulgaria 9520 520, Bulgaria
Titolo Testata:
PLANT BREEDING
fascicolo: 6, volume: 117, anno: 1998,
pagine: 582 - 584
SICI:
0179-9541(199812)117:6<582:APTAPF>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
HELIANTHUS-ANNUUS L; IMMATURE EMBRYOS; REGENERATION;
Keywords:
Helianthus annuus; direct organogenesis; in vitro culture; precocious flowering; test tube plantlets;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Ivanov, P Inst Wheat & Sunflower Dobroudja, Gen Toshevo 9520, Bulgaria Inst Wheat & Sunflower Dobroudja Gen Toshevo Bulgaria 9520 ria
Citazione:
P. Ivanov et al., "A protocol to avoid precocious flowering of sunflower plantlets in vitro", PLANT BREED, 117(6), 1998, pp. 582-584

Abstract

Precocious flowering in in vitro plantlets of sunflower is one of the unfavourable phenomena when using tissue culture. In this study, additional evidence is presented on precocious flowering of sunflower regenerants. Three day/night cycles (16/8h, 12/12h and 8/16h) and some modifications of media were investigated. Under standard conditions (16/8 h day/night, 25 degrees C) 62% of the plantlets formed flowers, while 55% formed flowers when grownin 12/12h day/night at 20 degrees C and 31% when plantlets were grown under cultivation conditions of 8/16 h day/night at 20 degrees C. According to the results obtained, precocious flowering of sunflower plantlets in test tubes depends on culture conditions, nutrition medium and genotype. It was found that 20 degrees C and 8/16h day/night was the most favourable condition to reduce precocious flowering of sunflower plantlets in the test tube. Modified nutrition media can also help to reduce in vitro flowering.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 01:45:41