References
- Burr , G. O. 1961 . “ Growth and composition of sugar cane as influenced by nitrogen ” . In Plant Anal., & Fert. Problems , 327 – 337 . Washington, D.C. : Amer. Inst. Biol. Sci. .
- Byrne , T. and Furuta , T. 1967 . Rootstocks and chemical composition of roses . Hort. Sci. , 2 : 18
- Eaton , G. W. and Meehan , C. N. 1971 . Effects of leaf position and sampling date on leaf nutrient composition of eleven highbush blueberry cultivars . J. Amer. Soc. Hort. Sci. , 96 : 378 – 380 .
- Haas , A. R. C. 1948 . Effect of rootstock on the composition of citrus trees and fruit . Plant. Physiol. , 23 : 309 – 330 .
- Hansen , P. 1965 . Aebleblades naeringsstofindhold. II. Afhaengighed af grundstamme, sort, år, baering og nedb⊘r . Tidskr. Planteavl. , 69 : 305 – 313 .
- Illge , R. 1968 . Betrachtungen über die Stickstoffblattanalyse , Wiss. Berlin : Tag. Ber. Dt. Akad. Landwirtsch. . Nr. 99
- Johansson , J. 1978 . Effects of nutrient levels on growth, flowering and leaf nutrient content of greenhouse roses . Acta Agric. Scand. , 28 : 363 – 386 .
- Larsen , I. 1975 . Gr⊘nne afgr⊘der — om vaekstfaktorerne nitrogen og lys . Nordisk jordbrugsforskning , 57 ( 2 ) : 288 – 289 .
- Lenander , S. E. 1967 . Sortförsök med växthusrosor . Nordisk Jordbruksforskning , 49 ( 3 ) : 288 – 289 .
- Ljones , B. 1962 . Utvikling og naeringsopptak hos jordbaerplanter i eit karfors⊘k med 5 jordsmonntyper to sortar og to mengder nitrogen . Meld. Norges Landbr.-hogskole , 41 : 10
- Ljones , B. 1975 . Forslag til optimalverdier for blad-analyser av frukt- og baervekster . Nordisk jordbruksforskning , 57 ( 1 ) : 112
- Ljones , B. and Sakshaug , K. 1967 . Nitrogen effects on composition and yield components of raspberry cultivars . Meld. Norges Landbr.hogskole , 46 : 12
- Neff , M. C. , Drosdoff , M. and Sharpe , R. 1948 . Effect of different seedling rootstocks on growth, production, and nutrient absorption on tung clones . Proc. Amer. Soc. Hort. Sci. , 52 : 97 – 112 .
- Schmidt , R. E. and Blaser , R. E. 1969 . Effect of temperature, light and nitrogen on growth and metabolism of ‘Tifgreen’ bermudagrass (Cynodon spp) . Crop. Sci. , 9 : 5 – 9 .
- Shear , C. B. and Smith , C. B. 1969 . Differential accumulation of mineral elements in the leaves of seedling progenies of seven apple cultivars . J. Amer. Soc. Hort. Sci. , 94 : 471 – 473 .
- Woodbridge , C. G. 1973 . Effect of rootstocks and interstocks on nutrient levels in ‘Bartlett’ pear leaves on tree growth, and on fruit . J. Amer. Soc. Hort. Sci. , 98 : 200 – 202 .