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A Population Study Of The Birches Betula Alleghaniensis B Pumila And Their Hybrid
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Book Synopsis A Population Study of the Birches, Betula Alleghaniensis, B. Pumila, and Their Hybrid by : Bruce Paul Dancik
Download or read book A Population Study of the Birches, Betula Alleghaniensis, B. Pumila, and Their Hybrid written by Bruce Paul Dancik and published by . This book was released on 1967 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S.D.A. Forest Service Research Paper NC. by :
Download or read book U.S.D.A. Forest Service Research Paper NC. written by and published by . This book was released on 1968 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings - Northeastern Forest Tree Improvement Conference by :
Download or read book Proceedings - Northeastern Forest Tree Improvement Conference written by and published by . This book was released on 1968 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Taxonomic Study of Western Canadian Species in the Genus Betula by : Janet Rogge Dugle
Download or read book A Taxonomic Study of Western Canadian Species in the Genus Betula written by Janet Rogge Dugle and published by . This book was released on 1964 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Five western North American birches, Betula fontinalis . B. glandulosa , B. pumila var. glandulifera , B. resinifera and B. papyrifera are studied taxonomically. Synonymy, descriptions, distribution and representative specimens examined are included. Four hybrid taxa, B. x winteri , B. x sargentii , B. x arbuscula, and B. x uliginosa , are described for the first time and three additional hybrids, B>. x utahensis , B. x eastwoodae and B. x sandbergii are also included. When birch species are in contact, they often hybridize. The populations so formed have been analyzed and the nature of several hybrid entities determined. The methods of analysis applied are as follows: chromatography of leaves and bark; hybrid index; polygonal graphs; chromosome numbers; pollen size, morphology and stainability; stomatal size; germination data; and pictorialized scatter diagrams. Betula x uliginosa (2n = 28-56) is the result of hybridization between B. resinifera and B. pumila var. glandulifera . In the population analyzed, introgression was in the direction of B. pumila var. glandulifera , the birch with the higher chromosome number. When B. pumila var. glandulifera is in contact with B. glandulosa , B. x sargentii (2n = 28-56) is produced. Introgression seems to be in both directions, although most of the gene flow is in the direction of the taxon with the higher chromosome number, B. pumila var. glandulifera . B. x eastwoodae (2n = 28) is the result of hybridization between B. glandulosa and B. fontinalis . Introgression was influenced very little by environmental selection, and B. x eastwoodae seemed to be as common as either of the parental species; and any gene flow was in either direction. B. x utahensis (2n = 28-84 with a concentration at 2n = 56) is the result of hybridization between B. papyrifera and B. fontinalis . In populations of these birches, introgression is mainly from B. fontinalis into B. papyrifera . Hybridization of B. x sargentii and B. papyrifera results in B. x arbuscula (2n = 28-84), a rare hybrid. Tentative conclusions are that introgression is in the direction of B. papyrifera , the taxon with the higher chromosome number. Hybridization of B, resinifera and B. papyrifera produces B. x winteri (2n = 28-84 with a concentration of individuals at 2n = 56). In the populations of these birches which were analyzed, introgression was in both directions. B. x sandbergii (2n = 56-84) results from hybridization of B. papyrifera and B. pumila var. glandulifera . As contrasted with the above, and probably as a result of strong environmental influence in the area in which this cross was analyzed, introgression was in the direction of J3. pumila var. glandulifera , the parental taxon with the lower chromosome number.
Book Synopsis Proceedings of the Ninth Lake States Forest Tree Improvement Conference, August 22-23, 1969 by :
Download or read book Proceedings of the Ninth Lake States Forest Tree Improvement Conference, August 22-23, 1969 written by and published by . This book was released on 1970 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1974 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Paper NC. written by and published by . This book was released on 1981 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetics of Yellow Birch by : Knud E. Clausen
Download or read book Genetics of Yellow Birch written by Knud E. Clausen and published by . This book was released on 1973 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Forest Service Research Paper NC. by : North Central Forest Experiment Station (Saint Paul, Minn.).
Download or read book U.S. Forest Service Research Paper NC. written by North Central Forest Experiment Station (Saint Paul, Minn.). and published by . This book was released on 1968 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forestry Research Progress: McIntire-Stennis Cooperative Forestry Research Program by : United States. Cooperative State Research Services
Download or read book Forestry Research Progress: McIntire-Stennis Cooperative Forestry Research Program written by United States. Cooperative State Research Services and published by . This book was released on with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forestry Research Progress in ... by : United States. Cooperative State Research Service
Download or read book Forestry Research Progress in ... written by United States. Cooperative State Research Service and published by . This book was released on 1967 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phylogeography, Introgression, and Population Structure of the Eastern North American Birches Betula Alleghaniensis, B. Papyrifera, and B. Lenta by : Ashley Thomson
Download or read book Phylogeography, Introgression, and Population Structure of the Eastern North American Birches Betula Alleghaniensis, B. Papyrifera, and B. Lenta written by Ashley Thomson and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Botany written by and published by . This book was released on 1989 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silvae Genetica written by and published by . This book was released on 1972 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Silvics of North America: Hardwoods by : Russell M. Burns
Download or read book Silvics of North America: Hardwoods written by Russell M. Burns and published by . This book was released on 1990 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Biosystematic Study of Betula Pendula, Betula Platyphylla Var. Japonica, and Their Hybrid by : Ross Andrew Melick
Download or read book A Biosystematic Study of Betula Pendula, Betula Platyphylla Var. Japonica, and Their Hybrid written by Ross Andrew Melick and published by . This book was released on 1976 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silvics of North America written by and published by . This book was released on 1990 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: