Shoot growth processes, assessed by bud development types, reflect Norway spruce vitality and sink prioritization

2006 ◽  
Vol 225 (1-3) ◽  
pp. 337-348 ◽  
Author(s):  
Tomás Polák ◽  
Barrett N. Rock ◽  
Petya Entcheva Campbell ◽  
Jitka Soukupová ◽  
Blanka Solcová ◽  
...  
Keyword(s):  
Norway Spruce ◽  
Shoot Growth ◽  
Growth Processes ◽  
Bud Development

Relations between cytokinin level, bud development and apical control in Norway spruce, Picea abies

1995 ◽  
Vol 95 (4) ◽  
pp. 563-568 ◽  
Author(s):  
Marie Bollmark ◽  
Hao-Jie Chen ◽  
Thomas Moritz ◽  
Lennart Eliasson
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Bud Development ◽  
Cytokinin Level ◽  
Apical Control

scholarly journals Inflorescence Bud Initiation, Development, and Bloom in Two Southern Highbush Blueberry Cultivars

2015 ◽  
Vol 140 (1) ◽  
pp. 38-44 ◽  
Author(s):  
Alisson P. Kovaleski ◽  
Jeffrey G. Williamson ◽  
James W. Olmstead ◽  
Rebecca L. Darnell
Keyword(s):  
Interspecific Hybrids ◽  
Shoot Growth ◽  
Late Summer ◽  
Vaccinium Corymbosum ◽  
Highbush Blueberry ◽  
Bud Development ◽  
Late Fall ◽  
Southern Highbush ◽  
Bud Initiation ◽  
The Relationship

Blueberry (Vaccinium spp.) production is increasing worldwide, particularly in subtropical growing regions, but information on timing and extent of inflorescence bud development during summer and fall and effects on bloom the next season are limited. The objectives of this study were to determine time of inflorescence bud initiation, describe internal inflorescence bud development, and determine the relationship between internal inflorescence bud development and bloom period the next spring in two southern highbush blueberry [SHB (Vaccinium corymbosum interspecific hybrids)] cultivars. ‘Emerald’ and ‘Jewel’ SHB buds were collected beginning in late summer until shoot growth cessation in late fall for dissection and identification of organ development. Inflorescence bud frequency and number, vegetative and inflorescence bud length and width throughout development, and bloom were also assessed. Inflorescence bud initiation occurred earlier in ‘Emerald’ compared with ‘Jewel’. Five stages of internal inflorescence bud development were defined throughout fall in both cultivars, ranging from a vegetative meristem to early expansion of the inflorescence bud in late fall. ‘Emerald’ inflorescence buds were larger and bloomed earlier, reflecting the earlier inflorescence bud initiation and development. Although inflorescence bud initiation occurred earlier in ‘Emerald’ compared with ‘Jewel’, the pattern of development was not different. Timing of inflorescence bud initiation influenced timing of bloom with earlier initiation resulting in earlier bloom.

scholarly journals Testing of microbial additives in the rooting of Norway spruce (Picea abies [L.] Karst.) stem cuttings

2011 ◽  
Vol 57 (No. 12) ◽  
pp. 555-564 ◽  
Author(s):  
I. Repáč ◽  
J. Vencurik ◽  
M. Balanda
Keyword(s):  
Norway Spruce ◽  
Shoot Growth ◽  
Growth Parameters ◽  
Alginate Bead ◽  
Block Design ◽  
The Other ◽  
Stem Cuttings ◽  
Naturally Occurring ◽  
Randomized Complete Block Design ◽  
Ecm Fungi

&nbsp;Laboratory-produced alginate-bead inoculum of ectomycorrhizal (ECM) fungi Cortinarius sp. and&nbsp;Gomphidius glutinosus, fungal commercial products ECtovit<sup>&reg; </sup>and Trichomil<sup>&reg;</sup>, bacterial commercial product BactoFil&nbsp;B<sup>&reg;</sup>, and commercial rooting stimulator Vetozen<sup>&reg;</sup> were applied to a peat-perlite (1:2, v:v) rooting substrate of Norway spruce stem cuttings collected from 4-year-old nursery-grown seedlings immediately before the insertion of cuttings into the substrate. The application of beads free of fungi and the substrate without an additive were the other treatments. The cuttings were rooted in vessels (60 cuttings per vessel, 180 per treatment) placed in a glasshouse and arranged in a randomized complete block design. The cuttings were estimated for one growing season (approximately for 26 weeks) after their insertion into the rooting substrate. Rooting % of the cuttings ranged from 45 (mycelium-free beads) to 75 (control) according to treatments, 64 on average. No significant differences among treatments were found in % of ECM morphotypes, total ECM colonization of roots (%), and growth parameters of shoots and roots of the cuttings. The applied microbial additives were not sufficiently efficient to form treatment-related ectomycorrhizas that were formed by naturally occurring ECM fungi. Inoculation by the ECM fungus Cortinarius sp. and application of Trichomil had a partial stimulative effect on the shoot growth of cuttings. Shoot and root growth parameters were not significantly correlated with total ECM colonization, except for a negative dependence of the root number in Trichomil treatment. A higher concentration of K but lower concentrations of Ca and Mg in Ectovit treatment than in the other treatments were detected.&nbsp; &nbsp;

Changes in metabolite profiles in Norway spruce shoot tips during short-day induced winter bud development and long-day induced bud flush

Metabolomics ◽  
2014 ◽  
Vol 10 (5) ◽  
pp. 842-858 ◽  
Author(s):  
Yeon Kyeong Lee ◽  
Danny Alexander ◽  
Jacob Wulff ◽  
Jorunn Elisabeth Olsen
Keyword(s):  
Norway Spruce ◽  
Shoot Tips ◽  
Bud Development ◽  
Short Day ◽  
Long Day ◽  
Metabolite Profiles

Long-shoot bud development, shoot growth, and foliage production in provenances of lodgepole pine

1987 ◽  
Vol 17 (11) ◽  
pp. 1421-1433 ◽  
Author(s):  
Conor O'Reilly ◽  
John N. Owens
Keyword(s):  
British Columbia ◽  
Mitotic Activity ◽  
Shoot Growth ◽  
Shoot Length ◽  
Apical Growth ◽  
Axillary Buds ◽  
Provenance Trial ◽  
Bud Development ◽  
Shoot Bud ◽  
Long Shoots

Long-shoot bud development, shoot growth, and foliage production were studied in seven provenances of Pinuscontorta Dougl. ssp. latifolia Engelm. from the major sites in British Columbia and one Yukon source growing in a provenance trial at Prince George, B.C. Branch terminal apical mitotic activity began in early March and continued until late September. Initiation of axillary buds began in May, about 2 weeks after the initiation of the subtending cataphyll. Differentiation of dwarf shoots began in early July to mid-August and continued until late October in some sources. Distal axillary buds had not always differentiated by late October in the southern sources. The duration of the period of apical growth and apical size during activity were related to final cataphyll numbers. Provenances with the widest, flattest, dormant apices produced the most cataphylls. The two northern provenances had more terminal sterile cataphylls but fewer sterile cataphylls lower in the long-shoot bud and shorter mean stem unit lengths than the others. Differences among provenances in shoot length were due mostly to variation in stem unit numbers. The large proportion of polycyclic long shoots in some provenances contributed to variation in dwarf shoot numbers.

scholarly journals Low Oxygen Delays Budbreak of Apple Trees in Greenhouse and Prolongs Storage Life

HortScience ◽  
1991 ◽  
Vol 26 (7) ◽  
pp. 890-891
Author(s):  
Eric Young ◽  
S.M. Blankenship
Keyword(s):  
Malus Domestica ◽  
Shoot Growth ◽  
Storage Life ◽  
Low Oxygen ◽  
Apple Trees ◽  
Bud Development ◽  
Oxygen Levels ◽  
Ambient Oxygen

Three percent oxygen significantly delayed and reduced budbreak of fully chilled apple (Malus domestica Borkh.) trees in a greenhouse. When ambient oxygen levels were restored, budbreak occurred normally. Apple trees stored under 3% ± 1% oxygen at 6C for 35 weeks had no detectable bud development in storage. Budbreak and subsequent shoot growth were normal after the trees had been removed from storage.

scholarly journals Growth of Norway spruce seedlings after transplanting into silty soil amended with biochar: a bioassay in a growth chamber

2013 ◽  
Vol 59 (No. 3) ◽  
pp. 125-129 ◽  
Author(s):  
J. Heiskanen ◽  
P. Tammeorg ◽  
R.K. Dumroese
Keyword(s):  
Norway Spruce ◽  
Seedling Growth ◽  
Forest Soils ◽  
Shoot Growth ◽  
Field Research ◽  
Soil Improvement ◽  
Growth Chamber ◽  
Tree Plantation ◽  
Silty Soil ◽  
Terminal Shoot

Biochar (BC), the carbon-rich by-product resulting from pyrolysis of biomass, is used for bioenergy and increasingly as a soil additive for carbon sequestration and soil improvement. However, information about the effects of BC on forest productivity and reforestation success, especially on boreal and temperate forest soils, is scant. We examined the effects of two BC types (Canadian and Finnish) added in proportions up to 60 vol.% into a common alluvial silty soil on the growth of transplanted Norway spruce (Picea abies [L.] Karst.) seedlings in a growth chamber. We found no marked differences in seedling growth among the binary growing media mixes used. Seedling growth attributes (seedling height, terminal shoot growth, root volume) differed consistently only between the BC types in the highest proportion used. The terminal shoot growth differed overall among the two BC types. These results suggest that BC may be applied into mineral soils without detrimental chemical effects on tree plantation success. Our results provide foundation for further field research on the longer-term impacts of adding BCs to boreal forest soils. &nbsp;

Predicting spring frost sensitivity by bud development and temperature sum in Norway spruce seedlings

Trees ◽  
2010 ◽  
Vol 24 (5) ◽  
pp. 809-817 ◽  
Author(s):  
Jaana Luoranen ◽  
Sirkka Sutinen ◽  
Risto Rikala
Keyword(s):  
Norway Spruce ◽  
Bud Development ◽  
Spring Frost ◽  
Temperature Sum
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