Download or read book Genetic Variation in Transpiration and Water Use in Conifers pitch Pine and Three Species of Spruce Seedlings written by Richard C. Beck and published by . This book was released on 1986 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1986 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1985 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetics of Pitch Pine written by F. Thomas Ledig and published by . This book was released on 1974 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forestry Theses Accepted by Colleges and Universities in the United States written by and published by . This book was released on 1981 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetics Genomics and Breeding of Conifers written by Christophe Plomion and published by CRC Press. This book was released on 2011-08-10 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by internationally reputed researchers in the field, this book presents the implications of the genomic revolution for conifers-promoting a better understanding of the evolution of these organisms as well as new knowledge about the molecular basis of quantitative trait variation. Both of these discoveries play important roles in
Download or read book Forestry Theses Accepted by Colleges and Universities in the United States July 1981 June 1990 written by and published by . This book was released on 1994 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seedling Growth of Eight Northwestern Tree Species Over Three Water Tables written by Don Minore and published by . This book was released on 1970 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Variation and Seed Transfer Guidelines for Ponderosa Pine in the Ochoco and Malheur National Forests of Central Oregon written by Frank C. Sorensen and published by . This book was released on 1994 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conifers Response to Water Stress written by Ismail Koc and published by . This book was released on 2019 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conifer species are the most extensively distributed on earth, and they are one of the most significant renewable resources with high economic value. Conifer species, Pinus and Abies species have been gaining popularity due to their desirable green color for products such as Christmas trees and are extensively used in landscaping. Not only inhabiting forest in their natural habitat, but also in plantations and reforestation areas usually outside their natural range where they have been exposed to water stress due to water shortage and the effects of climate change. Water stress is an important environmental factor for tree growth and development in plants. Therefore, we investigated the effect of irrigation and fertilization on balsam (Abies balsamae) and concolor fir (Abies concolor) and white pine (Pinus strobus ) seedlings in terms of tree morphology and physiology using a factorial design with three species and irrigation levels and two fertilization rates. Increased irrigation not only increased morphological traits such as diameter and height growth but also increased the net photosynthesis and stomatal conductance. The combination of each treatments had 5 seedlings for fir species and 4 seedlings for the pine species totaling 168 individual trees. White pine and balsam fir showed some drought tolerant mechanisms where concolor fir exhibited drought avoidance mechanisms. Fir species had higher net photosynthesis, stomatal conductance, transpiration rate and a lower water use efficiency compared to white pine. White pine had lower potassium concentration compared to two fir species, and balsam fir had higher calcium concentration compared to white pine and concolor fir under stress conditions, implying that fir species are more susceptible to water stress. We observed that concolor fir had a greater capacity for conserving water compared to white pine, leading to better above ground growth and shoot to root ratio. Balsam and concolor fir also had a greater foliar nitrogen concentration compared to white pine seedlings due to using an avoidance mechanism and maintaining nutrient uptake under water deficit conditions. White pine trees use drought tolerance strategies to reduce transpiration and maximize water uptake with increased root systems. White pine trees had higher below-ground biomass, with increased fine and coarse roots, and a lower nutrient use efficiency compared to two fir species. Moreover, we also tested the provenance and altitudinal variation of Turkish fir seedlings under water stress conditions. Morphological traits, such as relative root collar diameter, relative height growth, and stem volume index differed with seed source altitude as transplants from higher seed sources altitudes had greater growth compared to seedlings from lower altitudes. Overall, provenance had little effect on physiological parameters such as net photosynthesis, stomatal conductance, transpiration rate, internal CO2/ambient CO2 ratio, water use efficiency (WUE= A/E) and intrinsic water use efficiency (WUEi = A/gs), chlorophyll fluorescence (Fv/Fm) and carbon isotope discrimination rate (Delta13C). Provenances varied in stem water potential and net photosynthesis. Seedlings from the Karabuk provenances had high stem water potential and net photosynthesis. Intrinsic water use increased with altitude of the seed sources as seedlings from higher altitudes showed higher values compared to lower altitudes. Karabuk provenances might be more sensitive to water availability than Adapazari provenances. Adapazari provenances should be selected for the plantation and afforestation areas and production of Christmas trees.
Download or read book Root Dipping of Conifer Seedlings Shows Little Benefit in the Northern Rocky Mountains written by John P. Sloan and published by . This book was released on 1994 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Moisture Stresses in Arizona Mixed Conifer Seedlings written by John Robert Jones and published by . This book was released on 1972 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Root Growth and Physiology on Drought Resistance in Douglas fir Lodgepole Pine and White Spruce Seedlings written by Smit Julie and published by . This book was released on 1993 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Variation and Seed Transfer Guidelines for Ponderosa Pine in the Ochoco and Malheur National Forests of Central Oregon Classic Reprint written by Frank C. Sorensen and published by Forgotten Books. This book was released on 2017-03-18 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Genetic Variation and Seed Transfer Guidelines for Ponderosa Pine in the Ochoco and Malheur National Forests of Central Oregon Guidelines for the Deschutes NF and adjoining area will be presented in a sub sequent report oh variation throughout the east side of the Cascades in Oregon. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Germination Survival and Early Growth of Conifer Seedlings in Two Habitat Types written by Don Minore and published by . This book was released on 1986 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Prolonged Drought on Water Relations of Ponderosa Pine Seedlings Growing in Basalt and Sedimentary Soils written by L. J. Heidmann and published by . This book was released on 1992 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1974 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
