Showing papers on "Plant breeding published in 1976"
TL;DR: It is shown that increased inputs of carbon assimilates and nitrogen are necessary when increasing protein concentration in cereal grains while maintaining high yields.
Abstract: The bioenergetic implications of changing cereal grain protein concentrations and amino acid compositions by plant breeding are examined. It is shown that increased inputs of carbon assimilates and nitrogen are necessary when increasing protein concentration in cereal grains while maintaining high yields. Also, energetic requirements for obtaining endosperm proteins with a high lysine content in genotypes of maize and barley are slightly higher than in normal lysine stocks. The implications for plant breeding are discussed.
138 citations
Journal Article•
TL;DR: A comparison study of the breeding of eucalypts in South Africa and the USA over a 50-year period showed marked differences in the success and failure rates of different methods of breeding.
Abstract: ELDRIDGE, K. G.: Genetically improved eucalypt seed for Australian pulpwood forests. Appita 25: 105-109 (1971). HEIMBITRGER, C.: Breeding for disease resistance in forest trees. Forestry Chronicle 38: 356-362 (1962). LEPISTO, M.: Accelerated birch breeding in plastic greenhouses. Forestry Chronicle 49: 1-2 (1973). NEL, P. M.: The breeding of eucalypts in South Africa. South Afr. For. Jour. 54: 17-21 (1965).
78 citations
Book•
01 Jan 1976
TL;DR: The genetics and breeding of southern pines is studied in detail in the context of pine establishment and ornamentation in the southern United States.
Abstract: The genetics and breeding of southern pines , The genetics and breeding of southern pines , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی
76 citations
TL;DR: Polyploidy is one of the better known evolutionary processes and is a method capable of producing radically different genotypes, it is extremely well-suited for development as a tool for use in plant breeding.
Abstract: The hybridization of two species is a well established procedure that results in the formation of new species and furthers the evolution of plants. The understanding of this procedure, which has given scientists an insight into the origin of many naturally existing plant species, was enhanced 39 years ago when a method was established whereby polyploid plants could be produced with relative ease by using the drug colchicine (Blakeslee and Avery, 1937). Since polyploidy is one of the better known evolutionary processes and is a method capable of producing radically different genotypes, it is extremely well-suited for development as a tool for use in plant breeding.
33 citations
Journal Article•
30 citations
01 Jan 1976
TL;DR: Varieties of Sorghum bicolor were grown in the greenhouse in Texas and infested with Schizaphis graminum (Rond.) 7 days after plant emergence; seedlings that retained 50% living leaf tissue when plants of known susceptible varieties were dead were considered to be resistant.
Abstract: Varieties of Sorghum bicolor were grown in the greenhouse in Texas and infested with Schizaphis graminum (Rond.) 7 days after plant emergence; seedlings that retained 50% living leaf tissue when plants of known susceptible varieties were dead were considered to be resistant. In the field, resistance of mature sorghum was determined by attaching small plastic cages, each containing 5 aphids, to the leaves of plants in the booting stage or older, and those retaining at least 50% living leaf area in the cages (when 90% of the caged leaf area of susceptible plants had been killed) were considered to be resistant. These methods of evaluating resistance were successfully used in breeding for aphid resistance from several agronomically improved sorghum stocks.ADDITIONAL ABSTRACT:Two methods are described which have been used for evaluating resistance to Schizaphis graminum in a breeding programme with several agronomically improved lines