Advanced SearchSearch Tips
Regrowth of Axillary Buds the Current Season and Early Growth and Development the Following Year in Fruiting Young Kiwifruit as Affected by Early Defoliation
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Regrowth of Axillary Buds the Current Season and Early Growth and Development the Following Year in Fruiting Young Kiwifruit as Affected by Early Defoliation
Kwack, Yong-Bum; Kang, Seong-Mo; Kim, Hong Lim; Kim, Mok-Jong; Kim, Seong-Cheol; Lee, Yong-Bok;
  PDF(new window)
BACKGROUND: This study was conducted to investigate the effect of the unexpected early loss of leaves on a newly-bred kiwifruit on the regrowth of axillary buds the current season and the early growth and development the following year.METHODS AND RESULTS: The vines were defoliated on Jul. 18, Aug. 16, and Sep. 17 in 2012 and on Jul. 16, Aug. 13, and Sep. 12 in 2013. The vines were defoliated 0 (control), 50, and 100% of the total number of leaves on a vine. The regrowth of axillary buds at 30 days after defoliation increased in proportion to defoliation degrees regardless of the defoliated time. Defoliation the previous season did not influence percent budbreak the next season. Percentage of floral shoots of the control vines was 27.4%, each bearing 2-3 flowers. In those vines defoliated 100% in August and September, however, percent floral shoots and number of flowers significantly reduced.CONCLUSION(S): Defoliation in July, August, and September didnot affect percent budbreak the following year regardless of degrees of defoliation. A 100% defoliation in August and September significantly reduced flowering the following year compared to the control; that in August resulted in no floral buds at all.
Budbreak;Defoliation;Floral shoot;Kiwifruit;
 Cited by
Brundell, D. J. (1975). Flower development of the Chinese gooseberry (Actinidia chinensis Planch.), II. Development of the flowering bud, New Zealand Journal of Botany, 13(3), 485-496. crossref(new window)

Cheng, L., & Fuchigami, L. H. (2002). Growth of young apple trees in relation to reserve nitrogen and carbohydrates. Tree Physiology, 22(18), 1297-1303. crossref(new window)

Hopping, M. E. (1990). Floral biology, pollination, and fruit set, in: Warrington, I. J., Weston, G. C. (Eds.), Kiwifruit: Science and management, Ray Richards Publ. and New Zealand Society of Horticulture Science, Auckland, New Zealand, pp. 71-96.

Kang, S. M., & Ko, K. C. (1976). A study on cold hardiness, flowering and fruit bearing in ‘Okubo’ peach trees (Prunus persica) as affected by defoliation, Horticulture Environment and Biotechnology, 17(1), 1-11.

Kwack, Y. B., Kim, H. L., Chae, W. B., Lee, J. H., Lee, E. H., Kim, J. G., & Lee, Y. B. (2013). Regrowthof buds and flower bud formation in kiwifruit as affected by early defoliation, Korean Journal of Environmental Agriculture, 32(3), 201-206. crossref(new window)

Kwack, Y. B., Kim, H. L., Chae, W. B., Kim, S. H., Lee, Y. B., & Kim, J. G. (2014). Carbohydrate reserves of non-fruiting young kiwifruit vines as affected by early artificial defoliation. Horticulture Environmentand Biotechnology, 55(6), 462-470. crossref(new window)

Linsley-Noakes, G. C., & Allan, P. (1987). Effects of winter temperatures on flower development in two clones of kiwifruit (Actinidia deliciosa (A. Chev.) CF Liang et AR Ferguson). Scientia Horticulturae, 33(3), 249-260. crossref(new window)

Lloyd, D. A., & Couvillon, G. A. (1974). Effects of date of defoliation on flower and leaf bud development in the peach (Prunus persica L. Datsch). Journal-American Society for Horticultural Science, 99, 514-517.

Loescher, W. H., McCamant, T., & Keller, J. D. (1990). Carbohydrate reserves, translocation, and storage in woody plant roots. HortScience, 25(3), 274-281.

McCamant, T. (1988). Utilization and transport of storage carbohydrates in sweet cherry. Master's Thesis, Washington State University, Pullman, Washington, USA.

McPherson, H. G., Snelgar, W. P., Manson, P. J., & Snowball, A. M. (1997). Bud respiration and dormancy of kiwifruit (Actinidia deliciosa). Annals of Botany, 80(4), 411-418. crossref(new window)

Oliveira, C. M., & Priestley, C. A. (1988). Carbohydrate reserves in deciduous fruit trees. Horticultural Reviews, 10, 403-430.

Polito, V. S., & Grant, J. A. (1984). Initiation and development of pistillate flowers in Actinidiachinensis. Scientia horticulturae, 22(4), 365-371. crossref(new window)

Snowball, A. M., & Walton, E. F. (1992). Flowering in kiwifruit. New Zealand kiwifruit special publication, 4, 25-28.

Titus, J. S., & Kang, S. M. (1982). Nitrogen metabolism, translocation, and recycling in apple trees. Horticultural Reviews, 4, 204-246.

Tromp, J. (1983). Nutrient reserves in roots of fruit trees, in particular carbohydrates and nitrogen, Plant and Soil, 71, 401–413. crossref(new window)

Worley, R. E. (1979a). Pecan yield, quality, nutlet set, and spring growth as a response to time of fall defoliation. Journal American Society for Horticultural Science, 104, 192-194.

Worley, R. E. (1979b). Fall defoliation date and seasonal carbohydrate concentration of pecan wood tissue. Journal American Society for Horticultural Science, 104, 195-199.