References
- Anderson , L.B. 1971 . A study of some seedling characters and the effects of competition on seedlings in diploid and tetraploid red clover. . N.Z. Journal of Agricultural Research , 14 : 563 – 71 .
- Anderson , L.B. 1973 . Relative performance of the lateflowering tetraploid red clover “Grasslands 4706”, five diploid red clovers, and white clover. . N.Z. Journal of Experimental Agriculture , 1 : 233 – 7 .
- Butler , G.W. , Barclay , P.C. and Glenday , A.C. 1962 . Genetic and environment differences in the mineral composition of ryegrass herbage . Plant and Soil , 16 : 214 – 28 .
- Davies , W. Ellis , Thomas , T.A. and Young , Norman . 1968 . The assessment of herbage legume varieties. III. Annual variation in chemical composition of eight varieties . Journal of Agricultural Science, Cambridge , 71 : 233 – 41 .
- Drake , M. , Vengris , J. and Colby , W.G. 1951 . Cation exchange capacity of plant roots . Soil Science , 72 : 139 – 47 .
- Evans , P.S. 1970 . Root growth of Lolium perenne L. I. Effect of plant age, seed weight, and nutrient concentration on root weight, length, and number of apices . N.Z. Journal of Botany , 8 : 344 – 56 .
- Gray , B. , Drake , M. and Colby , W.G. Potassium competition in grass-legume associations as a function of root cation exchange capacity . Soil Science Society of America Proceedings . Vol. 17 , pp. 235 – 9 .
- Grignon , Claude and Lamant , Andre . 1973 . Distributionde quatre cations dans les cellules libres d’Acer pseudoplatanus L. Comptes Rendus Hebdomadaires des Seances de l’Acadernie des Sciences 276 Serie D , : 1685 – 8 .
- Hagberg , Arne and Akerberg , Erik . 1962 . “Mutations and Polyploidy in Plant Breeding ” , 150 – 150 . London : Heinemann .
- Haug , Arne and Smidsrød , Olav. 1970 . Selectivity of some anionic polymers for divalent metal ions . Acta Chemica Scandinavica , 24 : 843 – 54 .
- Hewitt , E.J. 1952 . Sand and water culture methods used in the study of plant nutrition . Commonwealth Agricultural Bureaux Technical Communication , 22 : 241 – 241 .
- Kivimac , Arnold . 1951 . Den di- och tetraploida rodkloverns kemiska sammansattning . Sveriges Utsadesforenings Tikskrift , 61 : 13 – 24 .
- Knight , A.H. , Crooke , W.M. and Inkson , R.H.E. 1961 . Cation-exchange capacities of higher and lower plants and their related uronic acid contents . Nature , 192 : 142 – 3 .
- Mattson , Sante . 1948 . Laws of ionic exchange. III. Donnan equilibria in plant nutrition . Kungl. Lantbrukhogskolans Annaler , 15 : 308 – 16 .
- Rasmuson , Bertil , Gahne , Bo and Fredriksson , Lars . 1959 . Studies on the discrimination of Sr90 from diploid and tetraploid red clover and Ca45 in feeding experiments with mice . Kungl. Lantbrukhogskolans Annaler , 25 : 241 – 51 .
- Smith , R.L. and Wallace , A. 1956 . Cation exchange capacity of roots and its relation to calcium and potassium content of plants . Soil Science , 81 : 97 – 109 .