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Book Ponderosa and Lodgepole Pine Seedling Bud Burst Varies with Lift Date and Cultural Practices in Idaho Nursery  Classic Reprint

Download or read book Ponderosa and Lodgepole Pine Seedling Bud Burst Varies with Lift Date and Cultural Practices in Idaho Nursery Classic Reprint written by John P. Sloan and published by Forgotten Books. This book was released on 2018-03-17 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Ponderosa and Lodgepole Pine Seedling Bud Burst Varies With Lift Date and Cultural Practices in Idaho Nursery Springtime warming allows for trees to break dormancy and begin growth. Figure 4 also shows the cumulative high temperatures before the two spring lifts. This summary of temperatures does not tell us what the requirements are for bud burst. It does show us the temperatures that have made the lodgepole pine seedling tops ready to grow immediately upon exposure to favorable conditions, on March 18. By April 8 they were beginning to grow ih-the nursery bed. We did not lift any trees between November 26 and March 18 because of frozen soil. When the frost finally left the ground in mid-march, the lodgepole seedlings broke bud very quickly in the greenhouse. Within 15 days nearly 100 percent of the trees broke bud, while in late November it took 45 days to achieve the same amount of bud burst. Three weeks later the seedlings were so close to breaking bud in the nursery bed that 14 percent did break bud in the time period between lifting and when they were placed in the greenhouse. This indicates that the lodgepole seedlings were coming out of dormancy before the spring lifts. 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.

Book Recent Reports

Download or read book Recent Reports written by and published by . This book was released on 1985 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Research Note INT

Download or read book Research Note INT written by and published by . This book was released on 1991 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Flammability Reduction Comparisons of Four Forest Fire Retardants

Download or read book Flammability Reduction Comparisons of Four Forest Fire Retardants written by Aylmer D. Blakely and published by . This book was released on 1988 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Monthly Catalogue  United States Public Documents

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1991-11 with total page 1316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Agrindex

    Book Details:
  • Author :
  • Publisher :
  • Release : 1991
  • ISBN :
  • Pages : 768 pages

Download or read book Agrindex written by and published by . This book was released on 1991 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Bibliography of Agriculture

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1991-10 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Government Reports Announcements   Index

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1991 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Seed Production of Central Oregon Ponderosa and Lodgepole Pines

Download or read book Seed Production of Central Oregon Ponderosa and Lodgepole Pines written by Walter G. Dahms and published by . This book was released on 1975 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Growth of Lodgepole Pine Thinned to Various Densities on Two Sites with Differing Productivities in Central Oregon

Download or read book Growth of Lodgepole Pine Thinned to Various Densities on Two Sites with Differing Productivities in Central Oregon written by P. H. Cochran and published by . This book was released on 1999 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fertilization of 2 0 Ponderosa Pine Seedlings in the Nursery and Field

Download or read book Fertilization of 2 0 Ponderosa Pine Seedlings in the Nursery and Field written by John F. Gleason and published by . This book was released on 1988 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-year-old ponderosa pine (Pinus ponderosa Laws.) from two seed sources were grown at two nurseries. The Fremont seed source was raised at Bend and Stone Nursery; the Ochoco was grown at only the Bend Nursery. The seedlings were fertilized in late September-early October with nitrogen (N) or nitrogen plus potassium (NK). Foliar nutrient analysis at the time of lifting indicated both the N and NK treatments increased N concentration 7-10% in two of the three nursery/seed source combinations but had no effect on the Other. The added K had no effect on K concentrations. None of the nursery treatments had any significant effect on any of the morphological characteristics measured in all three nursery/seed source combinations. The N treated seedlings from both seed sources at the Bend nursery appeared to be less susceptible to frost damage. In seedlings from the same nursery, there were no differences in mean days to budbreak among any of the treatments. The seedlings were lifted from the nurseries and planted back to their respective seed source sites. One-half of the seedlings at both sites were fertilized with a slow-release fertilizer one month after planting. There were no nursery treatment or field fertilizer treatment differences in first-year survival, which ranged from 96- 100%, although there were slight survival differences between nurseries at the Fremont site. Foliar samples taken immediately before the slow-release fertilizer application indicated that the NK nursery treatment at the Fremont site was the only nursery treatment with increased N concentration. These seedlings grew 26% more than the control seedlings and 19% more than the N treated trees during their first growing season in the field. Compared to non-field fertilized trees, the field fertilized seedlings at the Fremont site had higher foliar N concentrations and contents and heavier fascicles by the end of the first growing season although the non-field fertilized trees grew 12% more. At the Ochoco field site, the nursery fertilizer and field fertilizer treatments had no effect on seedling N levels or first year survival and growth. At the beginning of the growing season at the Fremont site, seedlings from the Bend nursery had heavier fascicles and greater N concentrations and contents than the Stone Nursery's seedlings. However, the Stone Nursery trees grew 44% more during the first growing season. The seedlings responded differently depending upon the field site at which they were planted. A graphical representation of the changes in fascicle weight, nutrient concentration, and nutrient content during the first growing season assisted in the interpretation of the responses at the two sites and provided an indication of the potential for future growth. The fascicle weights and N concentrations and contents of the Fremont site (the harsher, less fertile location) trees decreased 23%, 14%, and 33% respectively. At the Ochoco, the fascicle weights decreased just 6% and N concentration increased 14% although Ochoco seedlings grew less than those on the Fremont during the first growing season. The higher nutrient levels and heavier fascicles exhibited by the Ochoco trees could be a good indicator of how those seedlings respond in the coming years. Second year results should be analyzed before any final conclusions are made about this study, especially concerning field fertilization and how the seedling responses vary by site.