Articles by Keyword: Breeding Programmes

Search results for Breeding Programmes

We found 156 results for you
  1. Genetic parameters for large white pigs reared under intensive management systems in Kenya

    Genetic parameters for large white pigs reared under intensive management systems in Kenya

    Item type: Journal Article • Journal: East African Agricultural and Forestry Journal
    A lack of performance parameters is one of the factors limiting the implementation of sustainable breeding strategies for the pig industry in Kenya. The objective of this study was to estimate genetic and phenotypic parameters for growth performance of Large...
  2. Pine Provenance Research in South Africa: Promises and Problems

    Item type: Journal Article • Journal: South African Forestry Journal
    Provenance research really started with the work of H.L. Duhamel Du Monceau on Pinus sylvestris in the eighteenth century. In South Africa the first properly designed provenance trials were established between 1934 and 1936 with the testing of five races...
  3. Selecting for palatability in <em>festuca arundinacea</em> schreb

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Plants of numerous Festuca arundinacea cultivars and strains were evaluated for palatability, using two methods; a relative softness of leaf technique and a grazing technique. The softness of leaf technique, as measured by hand, provided a useful method to distinguish...
  4. Yield assessment of advanced wheat breeding lines the Winter Rainfall Region of South Africa. I. Homogeneity of the region

    Yield assessment of advanced wheat breeding lines the Winter Rainfall Region of South Africa. I. Homogeneity of the region

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The major wheat-producing areas in the Winter Rainfall Region are geographically divided into the Rûens and Swartland. The question whether the Rûens and Swartland should be regarded as non-similar areas, each meriting its own wheat-breeding programme, is considered. Correlations between...
  5. Yield assessment of advanced wheat breeding lines in the Winter Rainfall Region of South Africa. II. Choosing representative trial sites

    Yield assessment of advanced wheat breeding lines in the Winter Rainfall Region of South Africa. II. Choosing representative trial sites

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    An evaluation of the present system of testing of advanced wheat lines was made in terms of expected genetic gain from selection. Indications are that this system can function quite effectively if properly managed. The feasibility of substituting high potential...
  6. Invloed van genotipe en humiditeit op kunsmatige bestuiwing by sojabone

    Invloed van genotipe en humiditeit op kunsmatige bestuiwing by sojabone

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Die invloed van ouerkombinasie, tyd van bestuiwing en relatiewe humiditeit op kunsmatige bestuiwing by sojabone is ondersoek. Die persentasie sukses hou verband met die ouerkombinasie. Die beste tyd vir die maak van kunsmatige bestuiwings is klaarblyklik na 07h00. Die vroulike...
  7. Release of cotton breeding lines (<em>Gossypium hirsutum</em> L.) adapted to South African conditions

    Release of cotton breeding lines (<em>Gossypium hirsutum</em> L.) adapted to South African conditions

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The cotton breeding programme of the Tobacco and Cotton Research Institute has made available a number of advanced breeding lines and cultivars of cotton for a second cycle of intercrossing and selection. Selati, Gariep and NIK3 have been released for...
  8. Utility of ear plots versus hill and row plots in wheat breeding programmes

    Utility of ear plots versus hill and row plots in wheat breeding programmes

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Yield testing in early generations of wheat breeding programmes is limited by large numbers of lines and small amounts of seed. This paper compares yield testing using conventional row plots, hill plots and small single-ear plots. The effects of smaller...
  9. Haploids in barley breeding

    Haploids in barley breeding

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Haploids are organisms which possess the gametic chromosome number in their somatic tissues. They may arise spontaneously or be induced in a number of ways. Since 1970 haploids have been used as a method of producing pure lines in barley...
  10. The dough handling properties of two South African wheats with the 1B/1R chromosome translocation

    The dough handling properties of two South African wheats with the 1B/1R chromosome translocation

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Samples of two hard red spring wheats having the 1B/1R translocation were processed with commercial milling and baking equipment. Dough handling properties were noted following low and high speed mixing of the flours. W83/10 flour was totally unsuited for commercial...