Open AccessAction de la température sur la différenciation des inflorescences et des fleurs durant les phases de pré-débourrement et de post-débourrement des bourgeons latents de la vigne
Author(s) -
Roger Pouget
Publication year - 1981
Publication title -
oeno one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.516
H-Index - 13
ISSN - 2494-1271
DOI - 10.20870/oeno-one.1981.15.2.1791
Subject(s) - inflorescence , biology , shoot , horticulture , botany
Temperature exerts an important effect on the differentiation and development of flower organs during pre-bursting and post-bursting phases of latent buds. For MERLOT and CABERNET-SAUVIGNON varieties, the inflorescence mean number per shoot is higher at 25° C than at 12° C ; on the other hand, the flower mean number per inflorescence is lower. It follows that, in comparison with the temperature of 25° C, the flower mean number per shoot at 12° C is increased by 17,9 p. 100 for MERLOT and by 74,8 p. 100 for CABERNET-SAUVIGNON.