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Variations In The Growth And Defect Of Aspen Populus Tremuloides Michx Clones In Northern Ontario
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Book Synopsis Variations in the Growth and Defect of Aspen (Populus Tremuloides Michx.) Clones in Northern Ontario by : D. H. Weingartner
Download or read book Variations in the Growth and Defect of Aspen (Populus Tremuloides Michx.) Clones in Northern Ontario written by D. H. Weingartner and published by Ministry of Natural Resources. This book was released on 1985 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Assessment of Defect Variation Among Aspen Clones in Northern Ontario by : J. A. Kemperman
Download or read book Preliminary Assessment of Defect Variation Among Aspen Clones in Northern Ontario written by J. A. Kemperman and published by 1978.. This book was released on 1978 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Variation among healthy and deteriorating aspen clones by : George A. Schier
Download or read book Variation among healthy and deteriorating aspen clones written by George A. Schier and published by . This book was released on 1980 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sugar Maple and Yellow Birch Seedling Growth After Simulated Browsing by : Frederick T. Metzger
Download or read book Sugar Maple and Yellow Birch Seedling Growth After Simulated Browsing written by Frederick T. Metzger and published by . This book was released on 1977 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aspen Clones written by J. A. Kemperman and published by Ministry of Natural Resources. This book was released on 1977 with total page 20 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:
Download or read book Social Indicators written by and published by . This book was released on 1990 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report INT written by and published by . This book was released on 1988 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agriculture Handbook written by and published by . This book was released on 1990 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: Set includes revised editions of some issues.
Download or read book General Technical Report NC. written by and published by . This book was released on 1981 with total page 560 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:
Author :Alvin D. (Alvin Dale) Yanchuk Publisher :National Library of Canada ISBN 13 :9780315125209 Total Pages :0 pages Book Rating :4.1/5 (252 download)
Book Synopsis Clonal Variation of Wood Density and Fibre Length of Trembling Aspen (Populus Tremuloides Michx.) in North-central Alberta [microform] by : Alvin D. (Alvin Dale) Yanchuk
Download or read book Clonal Variation of Wood Density and Fibre Length of Trembling Aspen (Populus Tremuloides Michx.) in North-central Alberta [microform] written by Alvin D. (Alvin Dale) Yanchuk and published by National Library of Canada. This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Patterns of intra- and inter-clonal variation of wood density and fibre length of trembling aspen (Populus tremuloides Michx.) were examined in north-centra1 Alberta. The study was conducted as two separate experiments, the first dealing with within-clone variation of wood density and the second with among-clone variation and heritability of wood density and fibre length. Four trees from each of three clones were sampled to determine the patterns of wood density variation within stems and within clones. Sample disks were removed at five heights from each tree to examine variation among cardinal directions and across the southern radius at each height. Although only three clones were sampled, there were significant differences (P
Book Synopsis Concepts and Interpreted Examples in Advanced Fuel Modeling by : Robert E. Burgan
Download or read book Concepts and Interpreted Examples in Advanced Fuel Modeling written by Robert E. Burgan and published by . This book was released on 1987 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Adaptive Variation of Trembling Aspen in Northwestern Ontario by : Megan Thompson
Download or read book Adaptive Variation of Trembling Aspen in Northwestern Ontario written by Megan Thompson and published by . This book was released on 2014 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: "To demonstrate the pattern of adaptive variation of Populus tremuloides (Michx.) to northwestern Ontario climate conditions, a statistical analysis was completed of growth and phenology variables from 26 provenances. Growth variables included: height measured in 1999, 2000, 2003 and 2004; stem diameter measured in 1999, 2000 and 2002; leader length measured in 2000; and, leaf flushing measured in 2000. Adaptive variation was summarized by four principal component (PC) axes modeled by climate variables at seed origin that explained 41.5, 15.8, 10.0 and 6.3 percent of the growth and phenology variation among provenances. A clinal pattern of adaptive variation in leaf flushing predicted by temperature in the growing season was demonstrated by the first PC axis. The second PC axis was strongly influenced by growth data at one test site (Dog River) and showed a weak latitudinal trend related to winter temperature and precipitation at the start of the growing season. A longitudinal pattern of adaptive variation in growth and chlorophyll florescence variables predicted by July precipitation was demonstrated in PC axis 3. A latitudinal trend was shown for PC axis 4 where adaptive variation was expressed through a combination of winter temperatures and June mean temperature that predicted leader length and height potential together with October frost hardiness. The pattern of adaptive variation indicated significant genetic variation among trembling aspen provenances over a relatively small region."-- from abstract.
Book Synopsis Comparative Physiology and Development of Trembling Aspen (Populus Tremuloides Michx.) and Bigtooth Aspen (Populus Grandidentata Michx.) from Michigan Populations by : Obinani Ajuruchi Okafo
Download or read book Comparative Physiology and Development of Trembling Aspen (Populus Tremuloides Michx.) and Bigtooth Aspen (Populus Grandidentata Michx.) from Michigan Populations written by Obinani Ajuruchi Okafo and published by . This book was released on 1976 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Maintenance of Aspen (Populus Tremuloides Michx. and P. Grandidentata Michx.) in Old Fields in Central New York by : Elizabeth Anne Johnson
Download or read book Development and Maintenance of Aspen (Populus Tremuloides Michx. and P. Grandidentata Michx.) in Old Fields in Central New York written by Elizabeth Anne Johnson and published by . This book was released on 1979 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Relationship Between Trembling Aspen Phenology and Larval Development of the Large Aspen Tortrix by : Dylan Parry
Download or read book The Relationship Between Trembling Aspen Phenology and Larval Development of the Large Aspen Tortrix written by Dylan Parry and published by Canadian Forest Service, Northern Forestry Centre. This book was released on 1997 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The large aspen tortrix (Choristoneura conflictana) is an occasional defoliator of trembling aspen (Populus tremuloides) in western Canada. Research suggests that there might be a narrow phenological window for successful tortrix colonization of aspen buds in the spring. This paper adapts a stochastic model to describe the temporal relationship between C. conflictana and trembling aspen phenologies. The first characterization of the phenological stages occurring during bud-break and leaf expansion of trembling aspen is provided, as determined from observations at two sites in 1994. Degree-day models based on a common threshold temperature are developed for both insect and bud and shoot development of its host. The influence of changes in the sequence of temporal events on the success or failure of tortrix populations is also discussed.
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