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Titolo:
STRONG SYNERGISTIC EFFECTS OF GIBBERELLINS WITH THE SYNTHETIC CYTOKININ N-(2-CHLORO-4-PYRIDYL)-N-PHENYLUREA ON PARTHENOSCARPIC FRUIT-SET AND SOME OTHER FRUIT CHARACTERISTICS OF APPLE
Autore:
BANGERTH F; SCHRODER M;
Indirizzi:
UNIV HOHENHEIM,INST OBST GEMUSE & WEINBAU 370 D-70574 STUTTGART GERMANY
Titolo Testata:
Plant growth regulation
fascicolo: 3, volume: 15, anno: 1994,
pagine: 293 - 302
SICI:
0167-6903(1994)15:3<293:SSEOGW>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
RETURN BLOOM; CPPU; GROWTH;
Keywords:
APPLE (MALUS DOMESTICA L BORKH); CYTOKININ; FRUIT QUALITY; GIBBERELLINS; PARTHENOCARPIC FRUIT SET;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
31
Recensione:
Indirizzi per estratti:
Citazione:
F. Bangerth e M. Schroder, "STRONG SYNERGISTIC EFFECTS OF GIBBERELLINS WITH THE SYNTHETIC CYTOKININ N-(2-CHLORO-4-PYRIDYL)-N-PHENYLUREA ON PARTHENOSCARPIC FRUIT-SET AND SOME OTHER FRUIT CHARACTERISTICS OF APPLE", Plant growth regulation, 15(3), 1994, pp. 293-302

Abstract

The induction of parthenocarpic fruit set was investigated using the apple cvs. Golden Delicious and Jonagold. The gibberellins GA(3), GA(4), GA(5) and GA(7) and the synthetic phenylurea-type cytokinin CPPU (N-(2-chloro-4-pyridyl)N-phenylurea), were applied alone and in combination to unpollinated flowers at the end of petal fall. Gibberellins induced only a marginal final set of parthenocarpic fruits. CPPU sprays were more effective, particularly in the first year. When applied in combination, CPPU and gibberellins had a positive synergistic effect on parthenocarpic fruit set and fruit size, but a negative effect on flower induction the next year. After CPPU + GA sprays, percent fruit set was similar, or greater, compared to natural pollinated trees. The parthenocarpic fruits induced by CPPU + GA had an increased length to diameter ratio. CPPU stimulated, and GA(4) and GA(7) reduced, the russeting of the parthenocarpic fruits. The internal quality of the fruits was hardly affected, but Ca-deficiency symptoms occurred more frequentlyin parthenocarpic fruits.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 20:14:43