Journal
NEW ZEALAND JOURNAL OF CROP AND HORTICULTURAL SCIENCE
Volume 35, Issue 1, Pages 33-38Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/01140670709510165
Keywords
winter chilling; floral evocation; floral commitment; flowering; Actinidia
Categories
Ask authors/readers for more resources
Mature kiwifruit (Actinidia deliciosa 'Hayward') vines grown under standard orchard management were exposed to 16-h photoperiods from the longest day in summer until after leaf fall in autumn. Photoperiod extension was achieved with tungsten halogen lamps that produced 2-8 mu mols m(-2) s(-1) photosynthetically active radiation. Long day treatments did not affect fruit dry matter or fruit weight at harvest during the growing season that the treatments were applied or during the following growing season. However, flowering was reduced by 22% during the spring following treatment application. As this reduction in flowering was not accompanied by a decrease in budbreak, the long day effect is not consistent with a delay in the onset of winter chilling. It is suggested therefore, that the observed reduction in flowering may be because of a diminution of floral evocation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available