Zobrazeno 1 - 10
of 22
pro vyhledávání: '"J. E. Webber"'
Autor:
J. E. Webber, Michael Stoehr
Publikováno v:
Scandinavian Journal of Forest Research. 33:1-5
Pollen contamination was evaluated using control-pollinated seedlings pollinated with polymixes of orchard pollen and pure wildstand and wind-pollinated orchard seedlings. At age 7, seedlings pollinated with contaminate pollen were the shortest acros
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::526832765cebec3c1ad9dddabba04be1
https://doi.org/10.1080/02827581.2017.1316420
https://doi.org/10.1080/02827581.2017.1316420
Publikováno v:
Canadian Journal of Forest Research. 34:981-984
To evaluate the potential effects of seed orchard pollen contamination from surrounding background sources, we made control pollinations with outside orchard pollen and inside orchard pollen on trees of a Douglas-fir (Pseudo tsuga menziesii (Mirb.) F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39d415e9bb41bbc93f5d54180cd44453
https://doi.org/10.1139/x03-246
https://doi.org/10.1139/x03-246
Protocol for rating seed orchard seedlots in British Columbia: quantifying genetic gain anddiversity
Publikováno v:
Forestry. 77:297-303
Summary Seed orchards are the principal delivery method for genetically selected materials to operational reforestation programmes in British Columbia, Canada. Orchard parents are assigned breeding values for the improved trait (e.g. stem volume grow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d61f0b92e571e7bb55a0bcc74cd90b18
https://doi.org/10.1093/forestry/77.4.297
https://doi.org/10.1093/forestry/77.4.297
Publikováno v:
New Forests. 18:289-300
The influence of injecting 38-year-old Larix occidentalis with gibberellin A4/7 (GA4/7) on seed and pollen cone production was studied in western Montana, U.S.A. Two natural stands thinned to several spacings in 1961 were chosen. The two widest spaci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b79e903a4ca770a8297707ed6efd3641
https://doi.org/10.1023/a:1006612506340
https://doi.org/10.1023/a:1006612506340
Publikováno v:
Canadian Journal of Forest Research. 28:418-426
Seed orchards for the production of conifer seed in British Columbia are usually located in areas favorable (warm and dry) for flowering and seed development, often considerably south of the source location of the parent trees. Differences in environ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::336f5abcf536105fac9b7dbda1100b4d
https://doi.org/10.1139/x98-012
https://doi.org/10.1139/x98-012
Publikováno v:
Canadian Journal of Forest Research. 28:187-195
We evaluated pollen contamination, supplemental mass pollination efficacies, and natural selfing in a Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) clonal-row seed orchard using a genetic marker on the paternally inherited chloroplast (cp) genom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09bf6477af9d2365f561b360777d9c47
https://doi.org/10.1139/x97-201
https://doi.org/10.1139/x97-201
Autor:
J E Webber, F C Sorensen
Publikováno v:
Canadian Journal of Forest Research. 27:63-68
Les auteurs ont employe une fonction logarithmique double (log Y = log a + b log X) afin de modeliser la relation entre la production semenciere et la quantite de pollen piege (PC) cstimee a l'aide de trappes d'echantillonnage au champ. Dans ce model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5d0316993d906a3c664d7d667293298
https://doi.org/10.1139/x96-146
https://doi.org/10.1139/x96-146
Publikováno v:
New Forests. 10:133-143
The effects of top pruning on subsequent seed and pollen cone production in lodgepole pine (Pinus contorta Dougl.) grafted clones in two seed orchards were evaluated. In the older orchard (14 years old), three pruning regimes were applied: an untreat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de8cf5e537b16c54cbbaffae371ba694
https://doi.org/10.1007/bf00033403
https://doi.org/10.1007/bf00033403
Autor:
J. E. Webber, M. Bonnet-Masimbert
Publikováno v:
Tree Physiology
Tree Physiology, Oxford University Press (OUP): Policy B-Oxford Open Option B, 1995, 15, pp.419-426
Tree Physiology, Oxford University Press (OUP): Policy B-Oxford Open Option B, 1995, 15, pp.419-426
We review developments in cone and seed production research during the past decade. We conclude that although cone induction techniques, including hormonal and cultural procedures, have been refined, they still do not fully overcome juvenility or non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42dea33121b1551fe687a8d9423ed4c4
https://doi.org/10.1093/treephys/15.7-8.419
https://doi.org/10.1093/treephys/15.7-8.419
Publikováno v:
Canadian Journal of Forest Research. 24:2113-2117
The effects of background pollen contamination were evaluated for first-year height growth pattern of seedlings originating from a Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco) coastal–interior transition zone seed orchard located on southern V
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c51bd500040d8f38b5cdb7a44b98d77
https://doi.org/10.1139/x94-271
https://doi.org/10.1139/x94-271