Download or read book Provenance Variation in Early Growth and Development of Picea Mariana Mill B S P written by Erik G. Ståhl and published by Swedish University of Agricultura. This book was released on 1992-01-01 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic and Seasonal Variation in Hardiness and Growth Rhythm in Boreal and Temperate Conifers written by Mats Hannerz and published by . This book was released on 1998 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conifer Cold Hardiness written by F.J. Bigras and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conifer Cold Hardiness provides an up-to-date synthesis by leading scientists in the study of the major physiological and environmental factors regulating cold hardiness of conifer tree species. This state-of-the-art reference comprehensively explains current understanding of conifer cold hardiness ranging from the gene to the globe and from the highly applied to the very basic. Topics addressed encompass cold hardiness from the perspectives of ecology, ecophysiology, acclimation and deacclimation, seedling production and reforestation, the impacts of biotic and abiotic factors, and methods for studying and analyzing cold hardiness. The content is relevant to geneticists, ecologists, stress physiologists, environmental and global change scientists, pathologists, advanced nursery and silvicultural practitioners, and graduate students involved in plant biology, plant physiology, horticulture and forestry with an interest in cold hardiness.

Download or read book Growth Nutrient Dynamics and Outplanting Performance of Picea Mariana Mill B S P Seedlings in Response to Fertilization During the Hardening Period microform written by Joseph R. (Joseph Robert) Boivin and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Growth Nutrient Dynamics and Outplanting Performance of Picea Mariana Mill B S P Seedlings in Response to Fertilization During the Hardening Period written by Joseph R. Boivin and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traditional nursery culture of containerized black spruce ('Picea mariana' [Mill.] B.S.P.) seedlings involves a late-season hardening period when irrigation and fertilization are withheld to stress seedlings and promote frost-hardiness. Nutrient uptake is limited without supplemental fertilization, hence growth during hardening results in severe dilution of internal nutrients. The main objective of this study was to promote nutrient uptake and avert N dilution by fertilizing seedlings during the hardening period. Growth continues during this time (15-weeks), but gradually declines at the end of the rotation. Hence, nutrient supplementation progressively diminished with time to match seedling growth rate. Fertilization initially increased N uptake and elevated N concentration above initial pre-hardening status, but uptake declined after 6 weeks when fertilization ceased, causing growth dilution and N concentration decline. Based on these findings, fertilization dosages were increased and delivery schedules were prolonged in a follow-up experiment. Prolonged high-dose regimes promoted N uptake and prevented dilution, as reflected by a sustained increase of N concentration with time. When transplanted for 12-weeks on Boreal forest soil substrates to test outplanting performance, seedlings that received prolonged high-dose fertilization during hardening resulted in 115% more biomass and 350% more N than conventionally reared seedlings. The results demonstrate that fertilization during the hardening period improves early outplanting performance of seedlings, and may benefit future reforestation in northern forests.

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Download or read book Growth Nutrient Dynamics and Outplanting Performance of Picea Mariana Mill B S P Seedlings in Response to Fertilization During the Hardening Period written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

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