scholarly journals Extreme winter warm event causes exceptionally early bud break for many woody species

Ecosphere ◽  
2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Laura M. Ladwig ◽  
Jennifer L. Chandler ◽  
Peter W. Guiden ◽  
Jonathan J. Henn
Keyword(s):  
Woody Species ◽  
Bud Break ◽  
Warm Event

scholarly journals Pre-forcing Treatments Influence Bud Break and Shoot Elongation in Forced Woody Species

1992 ◽  
Vol 10 (2) ◽  
pp. 101-103
Author(s):  
Guochen Yang ◽  
Paul E. Read
Keyword(s):  
In Vitro Culture ◽  
Plant Species ◽  
Woody Plants ◽  
Woody Plant ◽  
Woody Species ◽  
Extended Period ◽  
Shoot Elongation ◽  
Bud Break ◽  
Cold Requirement

Abstract Experiments were conducted to evaluate the feasibility of pre-forcing treatments for the release of bud dormancy of dormant stems of lilac, privet and Vanhoutte spirea. The new softwood growth of these dormant stems was used either as explants for in vitro culture or as cuttings for rooting studies of woody plant species in the off-season. A pre-forcing 15% bleach solution (0.78% NaOCl) soak hastened bud break, enhanced percentage of bud break, and promoted shoot elongation. Pre-forcing wetting agent treatments produced similar results to those of the bleach soak with variation among wetting agents and plant species. Smaller treatment differences were observed in the forcing characteristics when stems were collected later in the winter, probably because the cold requirement of the buds had been completely or partially met. This technique will provide explants for in vitro culture and softwood cuttings for propagation of woody plants over an extended period.

scholarly journals 569 PB 012 A MODIFIED FORCING SOLUTION SYSTEM PROMOTES PROPAGATION OF WOODY SPECIES

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 513c-513
Author(s):  
Guochen Yang ◽  
Paul E. Read
Keyword(s):  
Root Length ◽  
Woody Species ◽  
Shoot Elongation ◽  
Bud Break ◽  
Root Number ◽  
Negative Effects ◽  
Solution System ◽  
Forcing Solution

A forcing solution containing 200 mg 8-hydroxyquinoline citrate per liter and 2% sucrose has enhanced availability of cutting materials by forcing dormant woody stems in the off-season. Anxins, such as IBA, included in the forcing solution promoted subsequent rooting by increasing root number per cutting and root length for privet. Inclusion of IBA in the forcing solution following the initial use of GA3 in the forcing solution counteracted the undesirable effects of GA3 on rooting and stimulated rooting after taking advantage of the favorable effects of GA3 on bud break and shoot elongation. However, the ability of IBA to counteract the negative effects of GA3 on rooting was dependent on the length of GA3 treatment. The modification of forcing solution system by sequentially including GA3 and then replacing GA3 with IBA expedited propagation of privet. Production of candidate cuttings or explants was stimulated by including GA3 in the forcing solution, and rooting of the cuttings was promoted by subsequent auxin or cytokinin inclusions in the forcing solution to replace GA3 This modified forcing solution system also proved to be a successful and efficient model for propagation of other difficult to propagate woody species.

scholarly journals PRE-FORCING TREATMENTS HELP BREAK BUD DORMANCY OF FORCED WOODY PLANT SPECIES

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 685d-685
Author(s):  
Guochen Yang ◽  
Paul E. Read
Keyword(s):  
Woody Plant ◽  
Woody Species ◽  
Optimum Concentration ◽  
Bud Dormancy ◽  
Bud Break ◽  
Negative Effects ◽  
Positive Effects ◽  
Forcing Solution ◽  
Almost All

A certain period of cold is needed to break bud dormancy for almost all woody species. A pre-forcing bleach soak has been demonstrated to at least partially replace this requirement (Yang and Read, 1989). Therefore, new softwood growth can be produced in the off-season. Such supple softwood growth is excellent material to be used either as explants for in vitro culture, or as cuttings for macropropagation of woody species. Further studies on pre-forcing bleach soaks were conducted to investigate optimum concentration and duration of soak, and to find the most suitable depth of bleach solution soak, in order to maximize the breaking of bud dormancy. Optimum bud break was obtained by soaking the basal 1/3 of dormant stems in 10% bleach solution for 10 minutes prior to forcing. Soaking dormant woody stems in alcohol solutions prior to placing stems in the forcing solution was also studied. The alcohol soak had negative effects on bud break of spirea, although it showed positive effects for lilac and privet.

Cytokinins in Rosa hybrida in relation to bud break

1997 ◽  
Vol 99 (3) ◽  
pp. 456-464 ◽  
Author(s):  
J. A. Dieleman ◽  
F. W. A. Verstappen ◽  
B. Nicander ◽  
D. Kuiper ◽  
E. Tillberg ◽  
...  
Keyword(s):  
Rosa Hybrida ◽  
Bud Break

Conservation Priorities for Woody Species Used by a Quilombo Community on the Coast of Northeastern Brazil

2019 ◽  
Vol 39 (1) ◽  
pp. 158
Author(s):  
Fernando Vieira Rocha ◽  
Rita Baltazar de Lima ◽  
Denise Dias da Cruz
Keyword(s):  
Woody Species ◽  
Northeastern Brazil ◽  
Conservation Priorities

Diversité floristique spontanée des plantations de café et de cacao dans la forêt classée de Monogaga, Côte d'Ivoire | Spontaneous floristic diversity of cocoa and coffee plantations in the classified forest of Monogaga, Côte d'Ivoire (reviewed paper)

2006 ◽  
Vol 157 (2) ◽  
pp. 31-36 ◽  
Author(s):  
Constant Yves Adou Yao ◽  
Edouard Kouakou N'Guessan
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Diversity Index ◽  
Agricultural Practices ◽  
Woody Species ◽  
Secondary Forests ◽  
Cote D’Ivoire ◽  
Coffee Plantations ◽  
Côte D'ivoire ◽  
High Tree Density

The inventory and the analysis of the woody species preserved in the different categories of cocoa and coffee plantations showed that they are relatively diversified (presence of endemic, rare and threatened species). They also preserved high tree density and high basal areas. The young plantations are especially diversified. Their number of species,density and basal areas and diversity index are similar to those of the neighbouring old growth and secondary forests. Older plantations display a sharp decline of diversity over time. Agricultural practices in the region represent a threat in the medium term to the preservation of biodiversity.

Effects of human disturbance on understory woody species composition and diversity in fengshui forests

2009 ◽  
Vol 17 (5) ◽  
pp. 458 ◽  
Author(s):  
Lü Hao-rong ◽  
Liu Song-song ◽  
Zhu Jian-yun ◽  
Ye Yong-chang ◽  
Chen Hong-yue ◽  
...  
Keyword(s):  
Species Composition ◽  
Human Disturbance ◽  
Woody Species
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