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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Factors affecting seed germination of some important desert plants

Muhktar, Hashim Abdel-Muttalib, 1933- January 1961 (has links)
No description available.
12

The microenvironment of a desert hackberry plant (Celtis pallida)

Sammis, Theodore W. January 1974 (has links) (PDF)
Thesis (Ph. D. - Hydrology and Water Resources)--University of Arizona. / Includes bibliographical references.
13

Root systems of certain desert plants ...

Markle, Millard S., January 1900 (has links)
Thesis (Ph. D.)--University of Chicago. / "Private Edition, Distributed by The University of Chicago Libraries." "Reprinted from the Botanical gazette, Vol. LXIV, No. 3 (September 1917)." Includes bibliographical references.
14

Root systems of certain desert plants ...

Markle, Millard S., January 1900 (has links)
Thesis (Ph. D.)--University of Chicago. / "Private Edition, Distributed by The University of Chicago Libraries." "Reprinted from the Botanical gazette, Vol. LXIV, No. 3 (September 1917)." Includes bibliographical references.
15

Root systems of certain desert plants ... /

Markle, Millard S., January 1900 (has links)
Thesis (Ph. D.)--University of Chicago. / "Private Edition, Distributed by The University of Chicago Libraries." "Reprinted from the Botanical gazette, Vol. LXIV, No. 3 (September 1917)". Includes bibliographical references. Also available on the Internet. Also issued online.
16

POPULATION BIOLOGY OF DESERT ANNUAL PLANTS.

INOUYE, RICHARD SABURO. January 1982 (has links)
Germination of seeds of desert annual plants is reduced where there are high densities of annual seedlings. This is interpreted as a response by seeds to avoid a severe biotic environment in which growth rate and fecundity are likely to be reduced by larger established competitors. This density-dependent germination response is due primarily to reduced germination of small-seeded annuals where densities of large-seeded annuals are high. Because of this germination response, and because of competition at the plant stage, large-seeded annuals could, in the absence of significant levels of predation by seed-eating rodents, dominate the annual plant community to a much greater extent than is commonly observed. By reducing densities of large-seeded annuals, rodents allow densities of small-seeded annuals to increase and thus exert a positive indirect effect on granivorous ants. Seed-eating rodents and a parasitic fungus both prey on Erodium cicutarium, a dominant annual plant. These two unrelated predators significantly influence each other's densities by their use of a common prey species. Dispersal of desert annual seeds that successfully germinate is apparently not as widespread as is suggested by observations that some desert annual seeds are redistributed throughout the year by wind and water. Removal of plants during seed set significantly reduced densities of seedlings on sample plots the next year.
17

Vegetation of the Murray Springs area, Cochise County, Arizona

Woodward, Susan Lee January 1969 (has links)
No description available.
18

PROXIMATE ANALYSIS OF SONORAN DESERT FOOD PLANTS.

Ariffin, Radziah Bt. January 1984 (has links)
No description available.
19

STUDIES ON THE GERMINATION OF PENSTEMON PARRYI GRAY SEED (GIBBERELLIC ACID, TEMPERATURE, STRATIFICATION).

Reaber, Ann Catherine. January 1985 (has links)
No description available.
20

Anatomy and developmental morphology of Allionia L. (Nyctaginaceae)

Phillips, Barbara Ann Goodrich, 1945- January 1976 (has links)
No description available.

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