A sampling technique for assessing digestibility of Italian ryegrass populations

Bugge, G., 1978. Genetic variability in chemical composition of Italian ryegrass ecotypes. Z. PflZücht. 81: 235–240.

Burton, G. W., R. H. Hart & R. S. Lowry, 1967. Improving forage quality in Bermudagrass by breeding. Crop Sci. 7: 329–332.

Carlson, I. T., K. H. Asay, W. F. Wedin & R. L. Vetter, 1969. Genetic variability in in vitro dry matter digestibility of fall-saved reed canary grass, Phalaris arundinacea L. Crop Sci. 9: 162–164.

Cooper, J. P., J. M. A. Tilley, W. F. Raymond & R. A. Terry, 1962. Selection for digestibility in herbage grasses. Nature, Lond. 195: 1276–1277.

Deinum, B., A. J. H. van Es & P. J. van Soest, 1968. Climate, nitrogen and grass. II. The influence of light intensity, temperature and nitrogen on in vivo digestibility of grass and the prediction of these effects from some chemical procedures. Netherlands J. agric. Sci. 16: 217–223.

Dent, J. W. & D. T. A. Aldrich, 1968. Systematic testing of quality in grass varieties. 2. The effect of cutting dates, season and environment. J. Br. Grassld Soc. 23: 13–19.

Hiridglou, M., P. Dermine, H. A. Hamilton & J. E. Troelsen, 1966. Chemical composition and in vitro digestibility of forage as affected by season in northern Ontario. Can. J. Plant Sci. 46: 101–106.

Jones, D. I. H., 1975. Some recent developments in techniques for assessing the digestibility and intake characteristics of grasses. Rep. Welsh Pl. Breed. Stn for 1974, pp. 128–133.

Jones, D. I. H. & M. V. Hayward, 1975. The effect of pepsin pretreatment of herbage on the prediction of dry matter digestibility from solubility in fungal cellulase solutions. J. Sci. Fd Agric. 26: 711–718.

Raymond, W. F., 1969. The nutritive value of forage crops. Advances in Agronomy 21: 1–108.

Rogers, H. H. & A. J. Thompson, 1970. Aspects of the agronomy and genetics of quality components in a diallel set of progenies of Lolium perenne L. J. agric. Sci., Camb. 75: 145–158.

Terry, R. A. & J. M. A. Tilley, 1964. The digestibility of the leaves and stems of perennial ryegrass, cocksfoot, timothy, tall fescue, lucerne and sainfoin as measured by an in vitro procedure. J. Br. Grassld Soc. 19: 363–372.

Tyler, B. F., 1979. Collections of forage grass in Europe. In: Proc. Conf. Broadening Genet. Base Crops Wageningen 1978, pp. 83–89. Pudoc, Wageningen.

Walters, R. J. K., 1976. The field assessment of digestibility of grass for conservation. ADAS Q. Rev. 23: 323–328.

Walters, R. J. K., G. ap Griffiths, R. Hughts & D. L. H. Jones. 1967. Some factors causing differences in digestibility of grasses measured by an in vitro method. J. Br. Grassld Soc. 22: 112–116.