In:
Journal of the American Society for Horticultural Science, American Society for Horticultural Science, Vol. 106, No. 6 ( 1981-11), p. 794-798
Kurzfassung:
Many shoot sampling variables were found to influence bud rest of apple ( Malus domestica Borkh.). Unlike terminal buds, uppermost lateral buds on decapitated stem pieces were stimulated by wounding and developed throughout the rest period under forcing conditions in a growth chamber and their rate of development was an accurate measure of depth of rest. Neither segment length nor location on the original intact shoot affected bud rest intensity, but single-node segments were avoided because they became desiccated. Rate of development of resting buds in darkness increased with increasing temperature between 20° and 30°C. Bud rest intensity decreased with decreasing shoot length. Shoot location in the tree crown (shaded interior vs. exterior) did not affect bud rest intensity, but there was a significant interaction between crop load and shoot height in the tree. Many interactions were significant between various shoot characteristics and bud rest intensity. Spurs were compared to shoots on the basis of the percent of a population showing terminal budbreak after 28 days of forcing. Terminal buds on spurs entered rest later and emerged earlier than did terminal buds on short, medium or long shoots.
Materialart:
Online-Ressource
ISSN:
0003-1062
,
2327-9788
DOI:
10.21273/JASHS.106.6.794
Sprache:
Unbekannt
Verlag:
American Society for Horticultural Science
Publikationsdatum:
1981
ZDB Id:
2040057-3
