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| Phillips, Scott; Wolfe, Martin. |
| Heritable variation is at the heart of the process of evolution. However, variation is restricted in breeding for uniform crop populations using the pedigree line approach. Pedigree lines are successful in agriculture because synthetic inputs are used to raise fertility and control weeds, pests and diseases. An alternative method promoted for exploring the value of variation and evolutionary fitness in crops is to create composite cross populations. Composite cross populations are formed by assembling seed stocks with diverse evolutionary origins, recombination of these stocks by hybridization, the bulking of F1 progeny, and subsequent natural election for mass sorting of the progeny in successive natural cropping environments. Composite cross... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection Breeding; Genetics and propagation Crop husbandry. |
| Ano: 2005 |
URL: http://orgprints.org/6749/1/PhillipsandWolfe[2]_Lit_review.pdf |
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| Pegg, Venessa; Dyke, Kirstie; Philipps, Lois; Phillips, Scott; Pearce, Bruce. |
| A preliminary weight profile was produce for the organic silvo-poultry system on Sheepdrove organic farm. Seven batches (each of 20 hens and 20 cocks) were weighed over a two month period (January/February 2003). No current organic silvo-poultry weight profile was available but the weights achieved were found to exceed those of the nearest suggested profile (ISA 657) but were beneath the weights required for Sheepdroves markets. There was great and inconsistent variation between the batches and between sheds. This suggested that environment and management of particular houses could be having a large impact on final chicken weights. |
| Tipo: Report |
Palavras-chave: Poultry; Feeding and growth. |
| Ano: 2003 |
URL: http://orgprints.org/10320/1/bird_weights_aug2003.pdf |
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