caa a22 4500 47711251X CHVBK 20180405111613.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF00011446 doi (NATIONALLICENCE)springer-10.1007/BF00011446 Translocation and effectiveness of foliar-fertilized boron in broccoli plants of varying boron status [Elektronische Daten] [B. Shelp, P. Vivekanandan, R. Vanderpool, A. Kitheka] The translocation and effectiveness of foliar-fertiilized boron (B) was investigated in broccoli plants supplied via the root system with luxury, sufficient or deficient levels of B. 10B-enriched boric acid was applied three times to lower leaves, beginning one week prior to inflorescence emergence, and the shoot and floret yields, as well as the 10B and 11B contents or concentrations of xylem sap, phloem exudate and various plant parts, were determined three weeks after inflorescence emergence. The amount of 10B translocated in phloem from fed leaves to the remainder of the shoot did not exceed 0.5%, of that supplied, but it was inversely related to plant-B status. The partitioning of translocated 10B to florets (16-30%) and the degree of enhancement in floret yield (28-75%) was also inversely related to plant-B status. It is concluded that foliar-B fertilization may be more effective for preventing B deficiency than soil-derived B in leaves. Kluwer Academic Publishers, 1996 boron nationallicence boron mobility nationallicence broccoli nationallicence foliar-applied nationallicence nutrition nationallicence 10B/11B : mass isotopes of boron nationallicence DM : dry matter nationallicence FF : foliar fertilization nationallicence RF : root fertilization nationallicence Shelp B. Department of Horticultural Science, University of Guelph, N1G2W1, Guelph, Ontario, Canada aut Vivekanandan P. Department of Horticultural Science, University of Guelph, N1G2W1, Guelph, Ontario, Canada aut Vanderpool R. Human Nutritional Research Center, Agricultural Research Service, U.S. Department of Agriculture, 58202-7166, Grand Forks, ND, USA aut Kitheka A. Department of Horticultural Science, University of Guelph, N1G2W1, Guelph, Ontario, Canada aut Plant and Soil Kluwer Academic Publishers; http://www.wkap.nl 183/2(1996-09-01), 309-313 0032-079X 183:2<309 1996 183 11104 https://doi.org/10.1007/BF00011446 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00011446 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shelp B. Department of Horticultural Science, University of Guelph, N1G2W1, Guelph, Ontario, Canada aut NATIONALLICENCE 700 1- Vivekanandan P. Department of Horticultural Science, University of Guelph, N1G2W1, Guelph, Ontario, Canada aut NATIONALLICENCE 700 1- Vanderpool R. Human Nutritional Research Center, Agricultural Research Service, U.S. Department of Agriculture, 58202-7166, Grand Forks, ND, USA aut NATIONALLICENCE 700 1- Kitheka A. Department of Horticultural Science, University of Guelph, N1G2W1, Guelph, Ontario, Canada aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; http://www.wkap.nl 183/2(1996-09-01), 309-313 0032-079X 183:2<309 1996 183 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer