Heritability of frost tolerance in white clover (Trifolium repens).

@article{Caradus1990HeritabilityOF,
  title={Heritability of frost tolerance in white clover (Trifolium repens).},
  author={J. Caradus and A. C. Mackay and J. V. D. Bosch and S. Wewala and D. Greer},
  journal={The Journal of Agricultural Science},
  year={1990},
  volume={114},
  pages={151-155}
}
(...) Heritability estimates for frost tolerance or susceptibility were high, ranging from 0.75 to 0.93, depending on method of calculation. Removal of leaf-size effects from scores of frost damage reduced heritability estimates to 0.54-0.73. It was concluded that, because heritability for frost tolerance was high, selection for this character and incorporation of frost tolerance into agronomically suitable but frost-sensitive cultivars by breeding would be successful 
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Effect of Photoperiod, Night Temperature, and Frost Incidence on Development of Frost Hardiness in Pinus radiata
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Pinus radiata has a greater potential to develop frost hardiness than was previously thought from field observations and was attributed to differences in their environments, particularly the incidence of frosts. Expand