Abstract
The aim of the study was to examine the response of pear (Pyrus communis L.) trees to soil and foliar applications of boron (B). The experiment was carried out during 2000–2001 in a commercial orchard in Central Poland on mature `Conference' pear trees grafted on Pyrus communis var. caucasica seedlings planted at a spacing of 4 × 2.5 m on a sandy loam soil with a low hot water-extractable B status. Annually, foliar sprays with B were applied. (i) before full bloom (at green and white bud stage, and when 1–5% of flowers was at full bloom), (ii) after flowering (at petal fall, and 7 and 14 days after the end of flowering), or (iii) postharvest in fall (approximately 6 weeks before leaf fall). Spray treatments involved application of B at a rate of 0.2 kg ha−1 in spring or 0.8 kg ha−1 in fall. Additionally, other trees were supplied with soil-applied B at the bud break stage at a rate of 2 kg ha−1. Trees untreated with B served as the control. The results revealed that foliar applications of B before full bloom or after harvest increased fruit set and fruit yield. Tree vigor, mean fruit weight, firmness, soluble solids concentration and titratable acidity of fruits at harvest were not affected by B treatments. Foliar B sprays before full bloom or after harvest increased B concentrations in flowers, and both leaves and fruitlets at 40 days after flowering. Only the foliar treatments after flowering and soil fertilization with B increased the content of this microelement in fruit and leaves at 80 and 120 days after full bloom. Foliar B application before full bloom or after harvest increased calcium (Ca) in fruitlets at 40 days after full bloom, in fruit, and in leaves at 80 and 120 days after full bloom. Nitrogen (N), phosphorus (P), potassium (K), and magnesium (Mg) in plant tissues were not affected by B fertilization. After storage, and also after the ripening period, fruits from the trees sprayed with B before full bloom or after harvest had higher firmness and titratable acidity than those from the control trees. After the ripening period, fruits from the trees sprayed with B before full bloom or after harvest had lower membrane permeability and were less sensitive to internal browning than the control fruits. These findings indicate that prebloom and postharvest B sprays are successful in increasing pear tree yielding and in improving fruit storability under the conditions of low B availability in the soil.
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References
Agarwala S C, Sharma P N, Chatterjec C and Sharma C P 1981 Development and enzymatic changes during pollen development in boron deficient maize plants. J. Plant Nutr. 3, 329–336.
Allison L E 1965 Organic carbon. In Methods of Soil Analysis. Eds. D D Black, J L Evans, I E White, I E Engminger and F E Clark. pp. 1367–1378. American Society of Agronomy, Madison, WI.
Bangerth F 1975 The effect of ethylene on the physiology of ripening of apple fruits at hypobaric conditions. In Facteurs et Regulation de la Maturation des Fruits (Factors Regulating Fruit Maturity). Ed. Colleques Internationaux du Centre National de la Recherche Scientifigue. pp. 183–188. CNRS, Paris.
Bangerth F 1979 Calcium-related physiological disorders of plants. Annu. Rev. Phytopathol. 17, 97–122.
Batjer L P and Thompson A H 1949 Effect of boric acid sprays during bloom upon the set of pear fruits. Proc. Am. Soc. Hort. Sci. 53, 141–142.
Berger K C and Truog E 1944 Boron tests and determination for soil and plants. Soil Sci. 57, 25–36.
Blaszczyk J and Ben J M 1997 Effect of different CO2 and O2 concentrations in the storage of ‘Conference’ pears on the rate of decreases in firmness during ripening. Acta Hort. 485, 71–77.
Brown P H and Shelp B J 1997 Boron mobility in plants. Plant Soil 193, 85–101.
Brown P H, Bellaloui N, Wimmer M A, Bassil E S., Ruiz J, Hu H, Pfeffer H, Dannel F and Römheld V 2002 Boron in plant biology. Plant Biol. 4, 205–223.
Chao T T 1972 Selective dissolution of manganese oxides from soils and sediments with acidified NH2OH·HCl. Soil Sci. Soc. Am. Proc. 36, 764–768.
Clarkson D T and Sanderson J 1971 Relationship between the anatomy of cereal roots and the absorption of nutrients and water. Report of ARC Letcombe Laboratory, 16–25.
Ferran X, Tous J, Romero A, Lloveras J and Pericon J R 1997 Boron does not increase hazelnut fruit set and production. HortScience 32, 1053–1055.
Gerasopoulos D and Richardson D G 1996 Effects of exogenous propylene and fruit calcium on ripening of non-chilled and chilled Anjou pears. Postharvest Biol. Technol. 8, 111–120.
Goldberg S 1997 Reactions of boron with soils. Plant Soil 193, 35–48.
Goldsmith M H M 1977 The polar transport of auxin. Annu. Rev. Plant Physiol. 28, 439–478.
Gupta U C 1979 Boron nutrition of crops. Adv. Agron. 31. 273–307.
Gupta U C 1983 Boron deficiency and toxicity symptoms for several crops as related to tissue boron levels. J. Plant Nutr. 6, 387–395.
Hanson E J 2000 Foliar boron sprays do not affect highbush blueberry production. Small Fruit Rev. 1, 35–41.
Hanson E J and Breen P J 1985 Effects of fall boron sprays and environmental factors on fruit set and boron accumulation in ‘Italian’ prune flowers. J. Am. Soc. Hort. Sci. 110, 389–392.
Haller M H and Batjer L P 1946 Storage quality of apples in relation to soil application of boron. J. Agric. Res. 73, 243–253.
Jin J, Martens D C and Zelazny L W 1987 Distribution and plant availability of soil boron fractions. Soil Sci. Soc. Am. J. 51, 1228–1231.
Johson F, Allmendinger D F, Miller V L and Polley D 1955 Fall application of boron sprays as a control for blossom blast and twig dieback of pears. Phytopathogy 2, 110–114.
Kader A.A. 1997. Fruit maturity, ripening, and quality relationships. Acta Hort. 485, 203–208.
Kamali A and Childers N F 1970 Growth and fruiting of peach in sand culture as affected by boron and a fritted form of trace elements. J. Am. Soc. Hort. Sci. 95, 652–656.
Kienholz J R 1942 Boron deficiency in pear trees. Phytopathogy. 32, 1082–1086.
Lee J S, Mulkey T J and Evans R 1984 Inhibition of polar Ca movement and gravitropism in roots treated with auxin-transport inhibitors. Planta 160, 536–543.
Lewak S 1998 Regulacja procesow fizjologicznych przez czynniki endogenne (Regulation of physiological processes by endogenous factors). In Podstawy Fizjologii Roslin (Plant Physiology). Eds. J Kopcewicz and S Lewak. pp. 108–135. PWN, Warsaw, Poland.
Marschner H 1974 Calcium nutrition of higher plants. Nether.J. Agric. Soc. 22, 275–282.
Marschner H 1995 Mineral Nutrition of Higher Plants. Academic Press, London. 897 p.
Oberly G H 1973 Effect of 2,3,5-triiodobenzoic acid on bitter pit and calcium accumulation in ‘Northern Spy’ apples. J. Am. Soc. Hort. Sci. 98, 269–271.
Olszak E, Bielenin A 1999 Program Ochrony Roslin (Program of Plant Protection). Agrosan, Sandomierz, Poland. 115 p.
Ostrowska A, Gawlinski S and Szczubialka Z 1991 Metody Analizy i Oceny Wlasciwosci Gleb i Roslin (Analysis of Soils and Plants). Instytut Ochrony Srodowiska, Warsaw, Poland, 334 p.
Peryea F J 1994 Boron nutrition in deciduous tree fruit. In Tree Fruit Nutrition. Eds. A B Peterson and R G Stevens. pp. 95–99. Good Fruit Grower, Yakima, Washington.
Poovaiah B W, Glenn G M and Reddy A S N 1988 Calcium and fruit softening; physiology and biochemistry. Hort. Rev. 10, 107–152.
Raese J T 1989 Physiological disorders and maladies of pear fruit. Hort. Rev. 11, 357–411.
Rerkasem B and Jamjod S 1997. Genotypic variation in plant response to low boron and implications for plant breeding. Plant Soil 193, 169–180.
Sadowski A 1996 Okreslenie potrzeb nawozenia roslin sadowniczych (Fertilizer needs of fruit crops). Sad Karlowy 1, 71–96.
Sanchez E, Righetti T and Sugar D 1998 Partitioning and recycling of fall applied boron in Comice pears. Acta. Hort. 475, 347–354.
Satoh K and Fujiwara Y 1962 Boron deficiency and its counter measures of Kikusui pear. Agric. Hort. 37, 1343–1344.
Shear C B 1975 Calcium-related disorders of fruit and vegetables. HortScience 4, 361–365.
Shorrocks V M 1997 The occurrence and correction of boron deficiency. Plant Soil 193, 121–148.
Sillanpaa M 1982 Micronutrient and the nutrient status of soil – a global study. FAO Soils Bulletin No. 48, FAO, Rome, Italy.
Stanley RG and Lichtenberg EA 1963 The effect of various boron compounds in vitro on germination of pollen. Physiol. Plant. 16, 337–346.
Stow J 1993 Effect of calcium ions on apple fruit softening during storage and ripening. Postharvest Biol. Technol. 3, 1–9.
Szczepanski K and Rejman S 1987 Metodyka Badan Sadowniczych (Statistical Analysis in Pomology). PWRiL, Warsaw, Poland, 213 pp.
Tomala K 1997 Orchard factors affecting fruit storage quality and prediction of harvest date of apples. Acta Hort. 485, 373–383.
Wilcox J C and Woodbridge C G 1942 Some effects of excess boron on the storage quality of apples. Sci. Agric. 23, 332–341.
Wojcik P, Cieslinski G and Mika A 1999 Apple yield and fruit quality as influenced by boron applications. J. Plant Nutr. 9, 1365–1378.
Woodbridge C G, Carney A and McClarty H R 1952 A boron defi-ciency in pears growing in soil having an adequate boron content. Sci. Agric. 32, 440–442.
Xuan H, Streif J, Pfeffer H, Dannel F, Rõmheld V and Bangerth F 2001 Effect of pre-harvest boron application on the incidence of CA-storage related disorders in ‘Conference’ pears. J. Hort. Sci. Biotech. 76, 133–137.
Zerbini E P and Sozzi A 1980. The influence of postharvest calcium treatments on the internal browning of Passe Crassane pears. In Mineral Nutrition of Fruit Trees. Eds. D Atkinson, J E Jackson, R O Sharples and W M Waller. pp. 53–54. Butterworths, London, Boston.
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Wojcik, P., Wojcik, M. Effects of boron fertilization on `Conference' pear tree vigor, nutrition, and fruit yield and storability. Plant and Soil 256, 413–421 (2003). https://doi.org/10.1023/A:1026126724095
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DOI: https://doi.org/10.1023/A:1026126724095