Sweet Cherry and Adaptation to Mild Winters
DOI:
https://doi.org/10.71318/apom.1999.53.3.181Abstract
The response to marginal winter chilling accumulation of six sweet cherry cultivars was evaluated as well as the use of hydrogen-cyanamide as a dormancy braking agent to regularize the bud opening and its impact on fruitfulness and quality. Bud sticks were collected at a cherry orchard located in Northwest Mexico, treated with cyanamide at 1, 2.5 and 3.5 % and forced to sprout. Based on the results, a dose of 2.5% of cyanamide was selected to treat groups of trees on two dates and with single and double treatments; cvs. Bing, Van and Stella showed a positive response to mild winters and dormancy breaking procedure being reflected on yield and good quality. ‘Hedelfingen’ and ‘Emperor Francis’ cultivars seems to be moderately affected by winter chilling reduction and ‘Sam’ cultivar had a very poor adaptability to such conditions and did not respond to cyanamide treatments.
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