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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.

Search results

Showing 1 to 10 of 15 (0.026 seconds)

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1

Cytogenic study of chromosome behavior and inheritance of petal spot in the hexaploid Gossypium hirsutum L. x Gossypium sturtianum Willis

da Silva, Fanuel Pereira, 1941- January 1971 (has links)
No description available.
Cotton -- Varieties.
2

The ABC Of King Cotton

Watenpaugh, H. N. 01 1900 (has links)
This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.
Cotton -- Varieties.
3

Soluable proteins in germinating cottonseed,Gossypium barbadense, as related to chilling tolerance

Chen, Joseph Du-Yuan, 1946- January 1975 (has links)
No description available.
Cotton -- Varieties.
4

CHROMOSOMAL INHERITANCE IN A BACKCROSS PROGRAM BETWEEN A HEXAPLOID COTTON LINE AND TETRAPLOID COTTON (CYTOGENETICS).

SHERMAN, RICHARD ALAN. January 1986 (has links)
A breeding program was begun to transfer the caducous bract trait from the wild cotton diploid species Gossypium armourianum Kearney (D genome, 2n = 26) to the cultivated tetraploid species G. hirsutum (AD genomes, 2n = 4x = 52). The sterile triploids were then doubled with colchicine to obtain fertile hexaploid plants. These plants and their open pollinated progeny varied in their chromosome number from 73 to 82 chromosomes, the majority being the expected 78 chromosomes. Chromosome associations included bivalents, trivalents, quadrivalents, and hexavalents. The caducous bract trait varied from being similar to each parent species to intermediate expression. Backcrossed to G. hirsutum, progeny with 61 to 67 chromosomes were obtained with associations including frequent trivalents, quadrivalents, and one hexavalent. The caducous bract trait was not expressed in most plants and only variable in others. Progeny from open pollination or backcrossing these plants gave chromosome numbers closer to the tetraploid parent, with ranges of 56 to 64 chromosomes in open pollinated progeny and 52 to 58 for backcrossed plants. Again, the caducous bract trait was variable, possibly due to the influence of the A and D genomes of the New World cottons. Tetraploids recovered from the progeny had bivalent pairing and chiasma frequencies similar to G. hirsutum. Further backcrossing is hoped to increase the expression of the caducous bract trait.
Cotton -- Genetics.
Cotton -- Varieties.
5

COMPARATIVE PHYSIOLOGICAL STUDIES AMONG THREE NEAR-ISOGENIC LINES OF GOSSYPIUM HIRSUTUM L.

Ibrahim, Mohamed Elhabib, 1945- January 1977 (has links)
No description available.
Cotton -- Physiology.
Cotton -- Varieties.
6

FIXATION OF CARBON-14 IN COTTON CANOPIES AS INFLUENCED BY LEAF TYPE

Kerby, Thomas Arthur, 1944- January 1976 (has links)
No description available.
Cotton growing.
Cotton -- Varieties.
7

Effect of temperature and gibberellic acid on the germination of seed of Acala and Pima cotton varieties

Millhollon, Rex, 1931- January 1958 (has links)
No description available.
Cotton -- Varieties.
Gibberellins.
Germination.
8

Environmentally induced alterations of cotton (Gossypium spp.) varietal tolerance to Verticillium albo-atrum Reinke & Berth

Takacs, Donald James, 1941- January 1969 (has links)
No description available.
Cotton -- Diseases and pests.
Cotton -- Varieties.
9

COMPARATIVE GINNING PERFORMANCE OF SELECTED NAKED AND FUZZY SEEDED ISOGENIC LINES OF GOSSYPIUM HIRSUTUM L. AND ITS RELATION WITH AGRONOMIC AND FIBER PROPERTIES

Tahir, Osman Ahmed, 1945- January 1977 (has links)
No description available.
Cotton gins and ginning.
Cotton -- Varieties.
10

Growth parameter variations among four tetraploid cotton cultivars (Gossypium barbadense L. and Gossypium hirsutum L.)

Nieves-Camacho, Raul, 1947- January 1978 (has links)
No description available.
Cotton -- Varieties.
Cotton growing -- Arizona.

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