Fibre crops
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Browsing Fibre crops by Subject "Cotton"
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Item Agricultural Research in the Sudan Gezira(1956) Maxwell, D.R.C.; Sudan Gezira Board, Wad MedaniIn recent years the high quality of the long staple cotton grown in the Sudan Gezira has gained world-wide recognition. As the following survey shows, much of the credit for the success of the Gezira Scheme is due to extensive experiment and research devoted to controlling pests and improving the breeds of plants.Item The Conservation of the Nitrogen of Cotton Seed(November 1939) ap Griffith, G; Chandler, P.; A.I.C.T.A., A.I.C., ChemistIn seasons when the price is favorable a considerable proportion of the cotton seed produced in Uganda is exported as such. In districts remote from railhead export is rarely profitable, and again in years of low prices none except the most favourably situated ginneries can dispose of their seed at an economic price.Item Cotton Research at Barberton(July, 1938) Gaddum, E. W.; Department of Agriculture, Kenya ColonyThe writer spent six months of 1937 studying cotton problems at the Empire Cotton Growing Corporation's Station at Barberton, in the Transvaal, South Africa. As many of the problems which are being investigated there are identical with, or similar to, those affecting the cotton grower in East Africa, it was thought that a brief account of the work at Barberton would be of interest.Item Fertilizer Experiments on Small Cotton Farms in Kenya 1968-1971(1973) Tveitnes, S.; Nyaas-Aakerbakken, O.; National Agricultural LaboratoriesDuring the period 1969-1971, a total of 384 fertilizer experiments were successfully completed in Western, Nyanza, Eastern, Central and Coast Provinces. The purpose was to define the requirement of cotton for fertilizers containing the primary nutrients nitrogen, phosphorous and potassium. In Eastern and Western provinces, sulphur was used instead of potassium during the last two years of the experimental preriod.Item Plant Hairiness in Allen Cotton (Gossypium Hirsutum)(1973) Innes, N.L.; Busuulwa, L.N.; Namulonge Research StationCotton varieties developed from the variety Allen (Gossypium hirsutum) have been successful in several African countries (Innes and Jones, 1972). The present commercial varieties of Uganda, BPA and SATU (Arnold, Costelloe and Church, 1968), both stem from Albar 51 which was selected from Nigerian Allen. To preserve genetic variability, seed stocks of various Allen accessions are maintained at Namulonge. These accessions have been screened for characters of economic importance.Item Progress Report on the Transgenic Bt-cotton Research at KARl Mwea(Kenya Agricultural Research Institute, 2007) Waturu C.N.; Kenya Agricultural Research InstituteThe collapse of cotton production from an all time high of 70,000 bales in 1985/86 to 20,000 bales by 2001 prompted the Government to institute measures to revitalize the industry. Poor agronomic practices, particularly pest control, contributed to the collapse of cotton production. Pest control and related activities take up about 32% of the production costs of cotton. The African bollworm is the most important pest of cotton in Kenya and alone can cause up to 100% yield loss, if unchecked. Other important pests include the cotton stainer (Oysdercus spp.), cotton aphid (Aphis gossypii), and cotton red spider mite (Tetranychus tera/ius). The introduction of transgenic Bt-cotton expressing Bt-toxins in cotton plants would greatly reduce the need for the application of broad-spectrum insecticides greatly cutting on the cost of pesticides hence increasing returns to the cotton producer. This would also minimize the negative effect of the insecticides on the natural enemies of cotton pests promoting their activity on cotton pests.Item Spray Interval Studies on Cotton in Eastern Uganda in 1961-1965(1967) Davies, J.C.; Serere Research Station, Department of Agriculture, UgandaTrials on interval of spray and number of sprays carried out over four seasons at Serere Research Station in Eastern Uganda are described. These trials compared the efficiency of control of the main bollworm and bug pests of cotton obtained with DDT at the rate of 1 lb. per acre per application. Spray intervals of 10, 15 and 20 days were used with a fourspray regime, and 14 and 21 days with fourand six-spray regimes. It was found that over a range of climatic conditions the 14/15-day interval gave the best response in terms of increased yields of seed cotton when used with a four-spray regime. The former Uganda standard recommendation of four sprays at 10-day intervals was amended accordingly. With a four-spray regime all intervals gave a reduction in the percentage of stained seedItem Standard Variety Trials 1964-65 Season (Cotton Research Corporation)(1964-65) Coffee Research Corporation; Coffee Research CorporationCorporation staff are invited to send in their comments on the results of the standard, variety trials summarized below and to suggest alternative interpretations of the data. The attention of staff is particularly drawn to 'the proposal made by Professor Bunting at the Summer Meeting: that stations should pool all available information on factors determining yields and this should be checked by a programme of physiological observations.Item The Vegetative and Nitrogen Efficiency of the Cotton Plant in Uganda(1937) Hosking, H. R.; Department of Agriculture, Uganda ProtectorateDuring the 1935'36 season a comprehensive trial on cotton was conducted at the Serere Experiment Station in Uganda. The treatments consisted of six varieties combined with four sowing dates and three spacings. The whole trial consisted of 288 sub,plots.
