Browsing by Subject "Major plant breeding"
Now showing items 21-40 of 47
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(Texas A&M University. Libraries, 1999)Six greenhouse and two field experiments were conducted to quantify phenotypic variation in melon (Cucumis melo L.) root structure and response to Monosporasciis cannonballus (TX 90-25) inoculation. The first experiment ...
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Genetical, physiological and biochemical relations of several leaf mutants in Gossypium hirsutum L (Texas A&M University. Libraries, 1971)Analysis of data collected and analyzed from research leading to this dissertation proved that six leaf-development mutants (crinkled-dwarf, rugose, strap leaf, Heritable Abnormality-3, Heritable Abnormality-1 and veins-fused) ...
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(Texas A&M University. Libraries, 1990)Three-component mixtures of wheat genotypes were evaluated for yield performance and effectiveness of control of wheat leaf rust, caused by Puccinia recondita Rob ex Desm. The studies were conducted in the 1985-86 and ...
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(Texas A&M University. Libraries, 1990)A study of F1 hybrids between hard red winter and hard red spring wheats (Triticum aestivum L.) was conducted to estimate heterosis for grain yield, grain yield components, harvest index, height, and test weight; to note ...
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(Texas A&M University. Libraries, 1985)An evaluation of heterosis in F1 hybrids of soft red winter wheat (SRWW) and hard red winter wheat (HRWW) was conducted to estimate heterosis in grain yield, yield components, total dry weight, height, test weight, protein ...
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(Texas A&M University. Libraries, 1970)An evaluation of heterosis in Avenae spp. Was conducted to estimate heterosis in grain yield, yield components, total air dry weight, straw weight, height, heading date, growth habit, percent groat protein and bushel weight. ...
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(Texas A&M University. Libraries, 1992)Relatively low yields of guinea sorghums have been a major obstacle for sustained progress in yield improvement of the race in West Africa. In an attempt to determine why West African sorghums display low yield potential, ...
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(Texas A&M University. Libraries, 1993)Information about rice heterotic patterns and genetic diversity as revealed by restriction fragment length polymorphisms (RFLPs) could assist rice breeders in selection of parents. The objectives of this study were to: (1) ...
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(Texas A&M University. Libraries, 1969)Six strains of A. sterilis introduced form Israel as breeding sources of crown rust of oats were crossed with a very susceptible variety Frazier. The number of genes conditioning resistance in the 6 strains was determined ...
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(Texas A&M University. Libraries, 1987)Resistant cultivars offer the most economical means of controlling bacterial blight of cotton. New isolates of the pathogen have evolved in Africa which are virulent on previously resistant cultivars. The nature and mode ...
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(Texas A&M University. Libraries, 1993)Somatic embryogenesis in cotton (Gossypium hirsutum) had been achieved as early as 1983, but only in certain cotton genotypes, especially 'Coker 312' and its sister lines. Somatic embryogenesis is important because it is ...
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(Texas A&M University. Libraries, 1965)
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(Texas A&M University. Libraries, 1985)Field and greenhouse studies were conducted at College Station, Texas to investigate the interrelationships between biological N2 fixation and seed yield in cowpea [Vigna unguiculata (L.) Walp.]. Seed yield of inoculated ...
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(Texas A&M University. Libraries, 1980)Several wild diploid Arachis species possess traits that would be useful in the improvement of the tetraploid cultivated peanut (Arachis hypogaea L.). Crossing incompatibility limits the use of some of these germplasm ...
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(Texas A&M University. Libraries, 1965)Average seed set in lateral florets of male sterile plants with T. timopheevi, Ae. caudata and Ae. ovata cytoplasms, cross pollinated by 45 wheat strains, ranged from 11.1 to 61.2, 4.3 to 57.5 and 1.6 to 35.9%, respectively. ...
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(Texas A&M University. Libraries, 1986)Using the Markov chain theory, the cotton growth characteristics at a given period were partitioned into states; these crop states were related to yield at harvest period. The Markov chain model enables one to predict the ...
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(Texas A&M University. Libraries, 1981)Seven sorghum inbred lines and 42 F1 hybrids from a set of diallel crosses among the lines were evaluated for reaction to head smut Sphacelotheca reiliana (Kuhn) Clint. Known vertical genes stacked into a single genotype ...
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(Texas A&M University. Libraries, 1994)Trials were conducted in Texas, and in Kenya between 1990 and 1993 to evaluate performance and stability of single, three-way, and double crosses of grain sorghum, estimate genetic effects, and evaluate grain yield prediction ...
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(Texas A&M University. Libraries, 1982)
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(Texas A&M University. Libraries, 1985)The effects of mepiquat chloride (1,1 dimethyl piperidinium chloride), applied at three different stages of crop development, were evaluated on cotton cultivars of differing growth habit and determinacy (TAMCOT CAMD-E and ...