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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.
1

GERMINATION AND ESTABLISHMENT OF THREE TROPICAL LEGUMES (WATER STRESS).

NASCIMENTO, MARIA DO PERPETUO SOCORRO CORTEZ BONA DO. January 1987 (has links)
Studies were conducted to test germination and to determine morphological and physiological characteristics of Canavalia obtusifolia DC., Cratylia floribunda Benth. and Dioclea lasiophylla Mart., which allow them to cope with water stress. Germination studies were done using PEG, moist paper and three different soils, in a germinator. Establishment and early growth studies were conducted in a greenhouse, using two different soils. In PEG, maximum percentage germination were near 100% for C. obtusifolia and D. lasiophylla and 75% for C. floribunda. Respectively, the water potentials for maximum germination were from 0 to -1 bar, from 0 to -5 bars, and at -5 bars. In moist paper, however, C. floribunda had near 100% germination. In the three soils, the three species had near or equal to 100% germination and their radicle grew more than in PEG. The rate of germination tended to be faster in soil than in PEG. However, it was affected by both soil and seed characteristics. So, germination was slower in Canelo, a pH 4, clay soil, as well as for the large-seeded C. obtusifolia, may be due to the reduction in the soil water conductivity at the seed-soil interface. It is suggested that leakage of solutes and spoilage of seeds as well as rapid water uptake at high water potentials, resulted in low germination of C. floribunda in PEG. Plants of C. floribunda and D. lasiophylla did not decrease their stomatal conductance or transpiration under high water stress, and their leaf water and osmotic potentials were sharply reduced. Plants of C. obtusifolia partially decreased their stomatal conductance and transpiration under stress. All three species were able to withstand elevated dehydration and to recover after being exposed to leaf water potentials lower than -60 bars. C. obtusifolia maintained net CO₂ assimilation at a high dehydration level (-46.1 bars). After rewetting, this species rapidly recovered its leaf water potential and turgor; its photosynthetic capacity, however, was not totally recovered after being rewetted for six days.
2

The effects of acidity and alkalinity on legumes Part I - The effect on growth and nodule formation of soybeans. Part II - The effect on growth, nodule formation and calcium content of alfalfa, alsike clover, and red clover /

Bryan, O. C. January 1922 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1922. / Typescript. With this is bound: Effect of different reactions on the growth and nodule formation of soybeans / by O.C. Bryan. Reprinted from Soil science, vol. XIII, no. 4 (Apr. 1922), p. 271-302. Includes bibliographical references.
3

Vergleichende Untersuchungen über die innere Struktur der Blätter und anderer Assimilationsorgane bei einigen australischen Podalyrieen-Gattungen (Isotropis, Gompholobium, Burtonia, Jacksonia, Sphaerolobium, Viminaria, Daviesia, Aotus und Phyllota) /

Bürkle, Richard, January 1901 (has links)
Thesis (Ph. D.)--Friedrich-Alexanders-Universität Erlangen, 1901. / Includes bibliographical references.
4

Beiträge zur vergleichenden Anatomie der Genisteengattungen Genista, Adenocarpus und Calycotome

Schulze, Walther, January 1901 (has links)
Thesis (Ph. D.)--Friedrich-Alexanders-Universität Erlangen, 1901. / Cover title.
5

Beiträge zur vergleichenden Anatomie der Gattungen Lupinus und Argyrolobium

Schulze, Hugo, January 1901 (has links)
Thesis (Ph. D.)--Friedrich-Alexanders-Universität Erlangen, 1901. / Includes bibliographical references.
6

Seedling vigour in winter grain legumes /

Kamboozia, Jafar. January 1994 (has links) (PDF)
Thesis (Ph. D.)--University of Adelaide, Dept. of Plant Science, 1995? / Includes bibliographical references (leaves 186-202).
7

Comparative morphology of some Leguminosae ... /

Martin, John N. January 1914 (has links)
Thesis (Ph. D.)--University of Chicago, 1913. / "Reprinted from the Botanical gazette, vol. LVIII, no. 2." "Literature cited": p. 164-165. Also available on the Internet.
8

Seedling vigour in winter grain legumes / by Jafar Kamboozia.

Kamboozia, Jafar January 1994 (has links)
Bibliography: leaves 186-202. / xvii, 202 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Plant Science, 1994
9

Seedling vigour in winter grain legumes

Kamboozia, Jafar. January 1994 (has links) (PDF)
Bibliography: leaves 186-202.
10

Shade tolerance of tropical forage legumes for use in agroforestry systems /

Addison, Heath James. January 2003 (has links)
Thesis (Ph.D.) - James Cook University, 2003. / Typescript (photocopy). Bibliography: leaves 301-323.

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