Galeano, Esteban Thomas, Barb R.
Published in
Frontiers in Plant Science
Tree improvement programs select genotypes for faster growth, at both early and late stages, to increase yields over unimproved material, and the improvement is frequently attributed to genetic control in growth parameters among genotypes. Underutilized genetic variability among genotypes also has the potential to ensure future gains are possible. ...
Rodríguez Solís, Arantxa Badilla, Yorleny Murillo Gamboa, Olman
Introduction. Tectona grandis is the species with the largest planted area in Costa Rica, due to the high prices in the international market. The production of plants for reforestation has been technified in the country and is currently being developed based on protected environment technologies, which increase productivity, reduce operating costs,...
Rodríguez Solís, Arantxa Badilla, Yorleny Murillo Gamboa, Olman
Growth regulators facilitate propagation and increase yield in plant production. Adding different amounts of regulators cause greater effectiveness in cell regeneration. Therefore, this study evaluated the effect of different doses of GA3 (gibberellic acid) and BAP (benzylaminopurine) on the productivity of clonal teak mini gardens in San Carlos, C...
Heuchel, Alisa
Orchard populations are artificial and intensively managed populations of elite, best-performing trees that are established for mass production of genetically improved seeds. Seed orchards connect cycles of selection, breeding, and testing of plus-trees with the deployment of the improved seeds at the operational plantations. Long reproductive cycl...
Revilla-Chávez, Jorge Manuel de Moraes, Marcela Aparecida Pinchi-Ramirez, Mack Henry Sebbenn, Alexandre Magno
Published in
Silvae Genetica
Guazuma crinita is a fast-growing tree with potential for use in agroforestry systems, due to its rapid wood production, which can contribute significantly to the livelihoods of small-scale farmers in the Peruvian Amazon. However, indiscriminate logging due to high demand is leading to the disappearance of natural forests. As such, the Internationa...
Bragg, Don C.
Published in
Frontiers in Forests and Global Change
A plus-tree progeny test of full- and half-sib “superior” loblolly pine (Pinus taeda) was installed in 1969 on the Crossett Experimental Forest (CEF) to consider the performance of 28 improved families with unimproved planting stock from the CEF (family W29). Performance was evaluated using data from young (3-year-old; early 1970s), maturing (25-ye...
Galeano, Esteban Thomas, Barb R
Published in
Tree physiology
Nine open-pollinated families of Picea glauca (Moench) Voss from the Region D1 Controlled Parentage Program (Alberta, Canada) were systematically chosen from fast, medium and slow-growth rankings based on breeding values for height from field progeny tests at age 30 years. Seeds from these families were sown and grown to age 3 years to analyze the ...
Murillo, O. de Resende, M.D.V. Badilla, Y. Gamboa, J.P.
Published in
Silvae Genetica
A teak progeny trial was established with four replicates at different sites along the northern Pacific region of Costa Rica. The trials followed a randomized block design, with 28 open pollinated families and 36 seedlings per family per site. Data from 7 years-old trees was analyzed both for each test location separately and for all locations comb...
Aguiar, B.I. Freitas, M.L.M. Tavares, Y.R. Tambarussi, E.V. Zanatto, B. Gandara, F.B. Paludeto, J.G.Z. Silva, D.Y.B.O. Silva, J.R. Moraes, M.L.T.
...
Published in
Silvae Genetica
The Atlantic Forest has very high levels of biodiversity and is considered one of the most important and threatened biomes in the world. Balfourodendron riedelianum is one of the forest’s characteristic tree species that is currently under considered endangered due to timber extraction and forest fragmentation. With the goal of generating informati...
Lundqvist, Sven-Olof Seifert, Stefan Grahn, Thomas Olsson, Lars García-Gil, Maria Rosario Karlsson, Bo Seifert, Thomas
Published in
European Journal of Forest Research
Annual growth, fibre and wood properties of Norway spruce are all under strong influence from genetics, age and weather. They change dynamically, particularly at young ages. Most genetic research and tree improvement programs are based on data from this most dynamic phase of the life of trees, affected by differences in weather among sites and year...
