AB Biotec The X-press Method for Disintegration of Cells. Biotec Inc., Parklawn Dr., Rockville, Maryland, USA.
Abetz P 1980 Seaweed extracts: have they a place in Australian agriculture or horticulture? J. Aust. Inst. Agric. Sci. 46, 23–29.
Atsumi S, Kuraishi S and Hayashi T 1976 An improvement of auxin extraction procedure and its application to cultured plant cells. Planta 129, 245–247.
Biddington N L and Thomas T H 1973 A modified amaranthus bioassay for rapid determination of cytokinins in plant extracts. Planta 111, 183–186.
Blunden G 1977 Cytokinin activity of seaweed extractsIn Marine Natural Products and Chemistry. Eds. D J Faulkner and W H Fenical. pp 337–343. Plenum Pub. Corp., New York.
Brinkman Manual Brinkman Instrument Division, 50 Galaxy Blvd. Rexdale, Ont., Canada.
Ciha A J, Brenner M L and Brun W A 1977 Rapid separation and quantification of abscisic acid from plant tissue using high pressure liquid chromatography. Plant Physiol. 59, 821–826.
Featonby-Smith B C and van Staden J 1983a The effects of seaweed concentrate and fertilizer on growth ofBeta vulgaris. Z. Pflanzenphysiol. Bd. 112, 115–162.
Featonby-Smith B C and van Staden J 1983b The effect of seaweed concentrate on the growth of tomato plants in nematode-infested soil. Scientia Hort. 20, 137–146.
Finnie J F and van Staden J 1985 Effect of seaweed concentrate and applied hormone onin vitro tomato roots. J. Plant Physiol. 120, 215–22.
Featonby-Smith B C and van Staden J 1987 Effects of seaweed concentrate on grain yield in barley. S. Afr. J. Bot 53, 125–128.
Fiskell J G A 1965 Copper.In Methods of Soil Analysis. Vol. II, Agronomy 9. Ed. C A Black. pp 1078–1089. Amer. Soc. of Agron., Madison Wis., USA.
Gaulin Manual Gaulin Laboratory Homogenizer. Manton-Gaulin Manufacturing Co. Inc., 44 Gaulin Street, Everett, Mass., USA.
Greweling T and Peech M 1965 Chemical Soil Test. New York State College of Agriculture. Bulletin 960.
Hemberg T 1974 Partitioning of cytokinins between ethyl acetate and acid water phases. Physiol. Plant. 32, 191–192.
Kotze W A G and Joubert J 1980 Influence of foliar spraying with seaweed products on the growth and mineral nutrition of rye and cabbage. Elsenberg J. 4, 17–20.
Mann J D and Jaworski E G 1970 Minimizing loss of indoleacetic acid during purification of plant extracts. Planta 92, 285–291.
Marschner H 1982 Effects of mineral nutrition on phytohormone balance in plants.In Plant Nutrition. Ed. A Scaife. pp 354–359. 1982 Proc. Int. Plant Nutrition Colloquium, Vol. I. Commonwealth Agriculture Bureau.
Mengel K and Kirkby E A 1982 Principles of Plant Nutrition. 3rd ed. International Potash Institute, Switzerland.
Murakami Y 1970 New rice seedling test for gibberellins: Microdrop method. JARQ 5, 5–9.
Nelson W R and van Staden J 1985 1-aminocyclopropane-1-carboxylic acid in seaweed concentrate. Bot. Mar. 28, 415–417.
Nelson W R and van Staden J 1984a The effects of seaweed concentrate on growth of nutrient-stressed greenhouse cucumbers. Hort. Sci. 19, 81–82.
Nelson W R and van Staden J 1984b The effects of seaweed concentrate on wheat culm. J. Plant Physiol. 115, 433–437.
Neumann P M and Nooden L D 1983 Interaction, of mineral and cytokinin supply in control of leaf senescence and seed growth in soybean explants. J. Plant Nutr. 6, 735–742.
Nitsch J P and Nitsch C 1956 Studies on the growth of coleoptile and first internode sections: A new, sensitive, straight-growth test for auxin. Plant Physiol. 31, 94–111.
Rademacher W and Graebe J E 1984 Isolation and analysis by gas liquid chromatography of auxins, gibberellins, cytokinins and abscisic acid from a single sample of plant material. Ber. Deutsch. Bot. Ges. Bd. 97, 75–85.
South Africa Patent (78/3281) 1978 Wet algae processing system.
Temple W D and Bomke A A 1988 Effects of kelpMacrocystis integrifolia on soil chemical properties and crop responses. Plant and Soil 105, 213–222.
van Staden J 1976 Extraction and recovery of cytokinin glucosides by means of a cation exchange resin. Physiol. Plant. 38, 240–242.
Walton D, Dashek W and Galson E 1979 A radioimmunoassay for abscisic acid. Planta 146, 139–145.