Articles
INFLUENCE OF PLUM ROOTSTOCKS ON THE DYNAMIC OF DRY MATTER IN THE ANNUAL SHOOTS OF CULTIVAR ‘VICTORIA’
Article number
976_48
Pages
355 – 360
Language
English
Abstract
This paper reports on rootstock influence on plum tree winter-hardiness.
Dry matter dynamic during winter in one-year-old shoots of plum trees was evaluated on Prunus domestica Victoria plum (2n=6x=48) in 2008-2009, 2009-2010 and 2010-2011 in Pūre HRC, Latvia.
Sixteen rootstocks (St.
Julien A, Brompton, Ackermann, Pixy, GF8/1, G5/22, GF655/2, Hamyra, St.
Julien INRA2, St.
Julien dOrleans, St.
Julien Noir, Brompton, Wangenheims Zwetche, St.
Julien Wädenswill, Myrobalana, Pr.
Cerasifera var. divaricate were planted in 2001 for comparison.
Samples were taken 5 times over the wintering period and dry matter content (mg g-1) was determined.
Dry matter content during 3 wintering periods showed significant increase during December and January.
No significant effect of rootstock was recorded.
The most fluctuating content of dry matter in one-year shoots was observed for trees grafted on Myrobalana (496-541 mg g-1). More stable contents were detected in trees grafted onto Prunus cerasifera (495-507 mg g-1) and Pixy (503-516 mg g-1). These results would suggest that the latter rootstocks are suitable for the more variable winter weather conditions.
Dry matter dynamic during winter in one-year-old shoots of plum trees was evaluated on Prunus domestica Victoria plum (2n=6x=48) in 2008-2009, 2009-2010 and 2010-2011 in Pūre HRC, Latvia.
Sixteen rootstocks (St.
Julien A, Brompton, Ackermann, Pixy, GF8/1, G5/22, GF655/2, Hamyra, St.
Julien INRA2, St.
Julien dOrleans, St.
Julien Noir, Brompton, Wangenheims Zwetche, St.
Julien Wädenswill, Myrobalana, Pr.
Cerasifera var. divaricate were planted in 2001 for comparison.
Samples were taken 5 times over the wintering period and dry matter content (mg g-1) was determined.
Dry matter content during 3 wintering periods showed significant increase during December and January.
No significant effect of rootstock was recorded.
The most fluctuating content of dry matter in one-year shoots was observed for trees grafted on Myrobalana (496-541 mg g-1). More stable contents were detected in trees grafted onto Prunus cerasifera (495-507 mg g-1) and Pixy (503-516 mg g-1). These results would suggest that the latter rootstocks are suitable for the more variable winter weather conditions.
Authors
D. Dekena, I. Alsina, J. Lepsis
Keywords
Prunus domestica, winter-hardiness, vegetative rootstock, generative rootstock, dry matter
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