True Fir Dwarf Mistletoe PDF Download
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Author:
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Category : Dwarf mistletoe
Languages : en
Pages : 2
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Author:
Publisher:
ISBN:
Category : Dwarf mistletoe
Languages : en
Pages : 2
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Author:
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ISBN:
Category : Dwarf mistletoes
Languages : en
Pages : 0
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Author: Robert F. Scharpf
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ISBN:
Category : Arceuthobium
Languages : en
Pages : 16
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Young red firs (Abies magnifica A. Murr.) and white firs (A. concolor [Gord. & Glend.] Lindl. ex Hildebr.) on the Stanislaus National Forest, California, were inoculated with seeds of dwarf mistletoe (Arceuthobium abietinum) for 5 successive years. Only 3 to 4 percent of about 7000 seeds placed on branches resulted in infections. Second-generation infections developed and populations of the parasite built up on some trees but not on others after 17 years. Variables that appeared to regulate population increases included an 8- to 9-year average between inoculation and fruiting of plants, low rate of fruit production among female plants, low proportion of plants producing abundant fruit (100 or more/year), and irregular production of fruit on plants over the years, Death of infected branches also helped keep populations of the parasite in check. In vigorous, well-managed stands of young firs, dwarf mistletoe populations may not build up rapidly enough to result in serious losses.
Author: Gregory M. Filip
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ISBN:
Category : Douglas fir
Languages : en
Pages : 8
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Author: R. F. Scharpf
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Category :
Languages : en
Pages : 4
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Author: Robert F. Scharpf
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Category :
Languages : en
Pages : 9
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Author:
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ISBN:
Category : Arceuthobium
Languages : en
Pages : 200
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Author: Donald M. Knutson
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ISBN:
Category : Host-parasite relationships
Languages : en
Pages : 19
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Author: James S. Hadfield
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ISBN:
Category : Douglas fir
Languages : en
Pages : 12
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Author: Donald M. Knutson
Publisher:
ISBN:
Category : Dwarf mistletoe
Languages : en
Pages : 24
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