EurekaMag.com logo
+ Translate

Witches' brooms-sources of new and interesting dwarf forms of Picea, Pinus and Tsuga species


, : Witches' brooms-sources of new and interesting dwarf forms of Picea, Pinus and Tsuga species. Acta Horticulturae (54): 25-32

The various causes of witches' brooms in conifers are discussed. The non-pathogenic type appears to result from a bud mutation or sport and the dwarf, dense growth habit can be perpetuated vegetatively. Data are tabulated on the segregation of normal and dwarf seedlings and variability among seedlings raised from witches' brooms of Picea abies, Pinus resinosa, Pinus strobus and Tsuga canadensis. Many ornamental dwarf, semi-dwarf, weeping and variegated forms have been obtained.

Click here to request the PDF Full Text of this accession


Accession: 000577873

PDF Full Text: Submit


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Vanajakumar N.S.; Selvakumar N.; Natarajan R., 1991: Antagonistic properties of actinomycetes isolated from molluscs of the porto novo region south india. Thompson, M -F , R Sarojini And R Nagabhushanam (Ed ) Bioactive Compounds From Marine Organisms: With Emphasis on The Indian Ocean; Indo-United States Symposium, Goa, India, February 23-27, 1989 Xvii+410p A A Balkema: Rotterdam, Netherlands Illus Maps 267-274

Hirano, T.; Kishimoto, T.; Kuritani, T.; Muraguchi, A.; Yamamura, Y.; Ralph, P.; Good, R. A., 1979: In vitro immune response of human peripheral lymphocytes 4. specific induction of human suppressor thymus derived cells by an anti serum to the thymus derived leukemia cell line hsb. An antiserum to a human T [thymus-derived] leukemia cell line, HSB, absorbed with the homologous B [bone marrow-derived] cell line, SB, reacted with 3 of 5 T cell lines, 0 of 5 B cell lines, and 0 of 3 other human hematopoietic cell lines. The abs...

Beranek, J. T., 1999: Why growth hormone therapy is efficient in heart failure?. European Heart Journal 20(3): 242-244

Timofeeff Ressovsky, N. W., 1932: Die hetero-gene Variationsgruppe Abnormes Abdomen bei Dro-sophila funebris. Diffuse, localized, and slight types of "abnormal abdomen" are described. The character may be due to a non-inherited modification (.1% of normal cultures), a "dauermodifikation" transmitted through the [female] and disappearin...

Giacobbe, A., 1977: Productive capacity of maritime pine (Pinus maritima) in Italy. Annali 6 87-105

Zhao, Zifu; Zheng, Y. F., 2008: Element mobility in mafic and felsic ultrahigh-pressure metamorphic rocks during continental collision. Geochimica et Cosmochimica Acta 72.12S: A1096

Bock M.; Nees S., 1988: In vitro studies on the rheological behavior of various blood cells in the presence of the inflammation mediator formylmethionylleucylphenylalanine fmlp central importance of the polymorphonuclear leukocytes pmn. Pfluegers Archiv European Journal of Physiology 411(SUPPL 1): R59

Walentowski, Helge; Winter, Susanne, 2007: Naturnahe im Wirtschaftswald - was ist das?. Assessments of the degree of 'naturalness' should deliver clear, unambiguous, application-oriented guidelines for nature conservation management decision-making. The concept of 'naturalness' is applied at different scales (e....

Uliana M.A.; Musacchio E.A., 1979: Late cretaceous nonmarine calcareous micro fossils from zampal mendoza province argentina. An outline of the southern Mendoza's Late Cretaceous stratigraphy is given, with special reference to Zampal section. The Piso del Ranquil beds, Groeber 1929 (= Rayoso beds of South Mendoza sensu H. Doucloux 1946) are correlated with the Neuq...

McCormick, S., 1984: Allelism tests with 2L mutants. The allelism of 3 opaque endosperm, 2 floury endosperm, 2 virescent seedling, 2 pale-green spotted, 5 defective grain and 4 white seedling, ethyl methanesulphonate-induced maize mutants on chromosome 2L is presented from tests within phenotypicall...