Results 21 to 30 of about 4,404 (213)

Photoperiod and temperature responses of bud swelling and bud burst in four temperate forest tree species [PDF]

open access: yesTree Physiology, 2014
Spring phenology of temperate forest trees is optimized to maximize the length of the growing season while minimizing the risk of freezing damage. The release from winter dormancy is environmentally mediated by species-specific responses to temperature and photoperiod.
Basler, David, Körner, Christian
openaire   +3 more sources

Effect of accumulated duration of the light period on bud burst in Norway spruce (Picea abies) of varying ages

open access: yesSilva Fennica, 2001
One-year-old seedlings (two sowing times), two-year-old seedlings and 14- and 18-year-old cuttings of Norway spruce (Picea abies (L.) Karst.) were exposed to shortening photoperiod (initially 16 h), lengthening photoperiod (initially 6 h) and constant
Partanen, Jouni   +2 more
doaj   +1 more source

Comparison of methods for determining budburst date in grapevine

open access: yesOENO One, 2022
Methods for determining budburst date in grapevine are poorly documented. Budburst date defined from cumulative shoots burst (or arising) and cumulative buds burst (expressed as % of total) were compared using different cultivars, pruning systems and ...
anne pellegrino   +3 more
doaj   +1 more source

Avoidance by early flushing: a new perspective on Dutch elm disease research

open access: yesiForest - Biogeosciences and Forestry, 2009
European elms (Ulmus glabra Huds., Ulmus laevis Pall. and Ulmus minor Mill.) have been severely damaged and are still endangered by an alien hypervirulent pathogen, Ophiostoma ulmi s. l., agent of the Dutch elm disease (DED).
Ghelardini L, Santini A
doaj   +1 more source

BUD DORMANCY INTENSITY IN PEACH TREE CULTIVARS BY BIOLOGICAL AND TETRAZOLIUM TEST

open access: yesRevista Brasileira de Fruticultura, 2016
Temperate climate fruit trees often exhibit uneven budding and flowering, due to the low number of chilling hours that determine the occurrence of dormancy and its depth.
GISELDA ALVES   +2 more
doaj   +1 more source

Sugars are under light control during bud burst in Rosa sp. [PDF]

open access: yesPlant, Cell & Environment, 2010
ABSTRACTBud burst in certain species is conditioned by the luminous environment. With roses, the requirement for light is absolute, and darkness totally inhibits bud burst. Few studies have looked into understanding the action of light on the physiological bud burst processes.
Girault, T.   +6 more
openaire   +4 more sources

Chemical regulation of sex expression in certain olive cultivars

open access: yesActa Agrobotanica, 2013
The modifying effect of growth regulators on bud burst, flower bud formation and sex expression in olives varies greatly according to cultivar, concentration and time of application.
E. S. Hegazi, G. R. Stino
doaj   +1 more source

Tradeoffs between chilling and forcing in satisfying dormancy requirements for Pacific Northwest tree species

open access: yesFrontiers in Plant Science, 2015
Many temperate and boreal tree species have a chilling requirement, that is, they need to experience cold temperatures during fall and winter to burst bud normally in the spring. Results from trials with 11 Pacific Northwest tree species are consistent
Constance Ann Harrington
doaj   +1 more source

Statistical evaluation of bud development theories: application to bud burst of Betula pendula leaves [PDF]

open access: yesTree Physiology, 1999
Resampling methods were used to evaluate models based on alternative bud development theories applied to Betula pendula Roth data. Statistical testing based on the bootstrap method showed that the mean square errors (MSE) of the predicted bud-burst dates of two models, in which the start of ontogenetic development depended on dormancy development only,
openaire   +2 more sources

Geographical Variation in Bud-burst Timing of Zelkova serrata Provenances [PDF]

open access: yesKorean Journal of Agricultural and Forest Meteorology, 2013
This study was conducted to examine the geographic variation of bud phenology of Zelkova serrata provenances. Data were collected from Gangneung, Yilmsil, Hwaseong and Jinju plantations which were parts of the 6 provenance trials established by Korea Forest Research Institute in 2009. The 16 provenances were included in these trials.
In Sik Kim   +3 more
openaire   +1 more source

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