Period of endodormancy breaking in 'Kawazu-zakura' (Prunus lannesiana Wils.) cherry tree

• Published in: Journal of Science and High Technology in Agriculture (Japan) Vol. 19; no. 3; pp. 132 - 136
• Main Authors: Murakami, S.(Shizuoka-ken. Research Inst. of Agriculture and Forestry, Izu (Japan). Izu Agricultural Research Center), Kato, C, Inaba, Z, Nakamura, S
• Format: Journal Article
• Language: English; Japanese
• Published: Fukuoka Japanese Society of Agricultural, Biological and Environmental Engineers and Scientists 01.09.2007; Japan Science and Technology Agency
• Subjects: chilling requirement; climatic condition; cutting branch; DORMANCY BREAKING; LEVEE DE DORMANCE; PRUNUS; SALIDA DE LA LATENCIA
• ISSN: 1880-2028; 1880-3563
• DOI: 10.2525/shita.19.132

The period of breaking dormancy and chilling requirement were investigated in 'Kawazuzakura' cherry trees. Cut branches were serially sampled in Kawazu-cho Tanaka on Oct. 20, Nov. 5, Nov. 26, Dec. 5 and Dec. 24 in 2003 and 2004. The branches were carried into an environmental greenhouse that had been set to the lowest temperature (15 deg C). The results showed the flowering bud rate and germinating leaf bud rate rose as the greenhouse day slowed. It was suggested that the dormancy of the flower bud broke between the end of November and the beginning of December, and that of the leaf bud was after the beginning of December. The depth of dormancy differed between the flower bud and the leaf bud. A difference in breaking dormancy was seen as in 2003 and 2004. It was suggested that the temperature that influenced dormancy breaking was higher than that of other cherries. For these reasons, 'Kawazu-zakura' is a precocious cherry.