The on farm trial was carried out to study the effect of nutrients sprays on growth, yield and fruit quality of apple cv. Royal Delicious under cold desert condition of Himachal Pradesh. Treatments comprised spray of boric acid (0.1%), urea (0.5%), boric acid (0.1%) + urea (0.5%), multiplex (250 ml/100 litre of water) and no use of nutrients (water spray). The highest growth in terms of shoot length was observed with spray of urea at 0.5% and the highest fruit set and yield were recorded with boric acid (0.1%) + urea (0.5%) followed by boric acid at 0.1%. The lowest growth, fruit set and yield were observed with control. The combination of boric acid (0.1%) + urea (0.5%) resulted in the highest fruit length, breadth and weight. The highest total soluble solids were recorded with boric acid 0.1% and the reducing and total sugars were the highest with control. The acidity was found maximum while total soluble solids, reducing and total sugars were recorded lowest with spray of urea 0.5%. The treatment comprising of boric acid (0.1%) + urea (0.5%) proved to be best in terms of fruit set, yield and quality parameters of apple followed by boric acid at 0.1% concentration.
Apple, Boric Acid, Multiplex, Quality, Urea, Yield
Ali, Amjad, Perveen, Sajida, Shah, Syed Noor Muhammad, Zhang Zengqiang, Wahid, Fazli, Shah Mohib, Bibi, Shahida and Majid, Abdul (2014). Effect of foliar application of micronutrients on fruit quality of Peach. American Journal of Plant Sci., (5) : 1258-1264.
Amiri, M.E., Fallahi, E. and Golchin, A. (2008). Influence of foliar and ground fertilization on yield, fruit quality, and soil, leaf, and fruit mineral nutrients in apple. J. Plant Nut., 31(3): 515-525.
AOAC (1995). Official Methods of Analysis .15th Ed. Association of Official Agricultural Chemist, Washington, D.C., USA.
Asgharzade, Ahmad., Valizade ,Gholam Ali and Babaeian, Mahdi (2012) . Investigating the effect of boron spray on yield nutrient content, texture and brix index of apple (Sheikh Amir Variety) in Shirvan region. African Journal of Microbiology Research , 6(11): 2682-2685.
BI, G.; C.F. Scagel; L. Cheng; S. Dong and H. Fuchigami (2003). Spring growth of Almond nursery trees depends upon nitrogen from both plant reserves and spring fertilizer application. J. Hort. Sci. & Biotech. 78(6): 853 - 858.
Bright, J. (2005). Apple and Pear nutrition. NSW Department of Primary Industries. Primefact 85. pp. 1-12.
Dong, S., Cheng ,L., Seagel C.F. and Fuchigami, L.H. (2005). Timing of urea application affects leaf and root N uptake in young Fuji/M9 apple trees. J. Hortic . Sci. and Biotech. 80: 116-120.
Dubois M, Gilles, K.A., Homilton J.K., Robers P.A.andSmith, F. (1956). Colorimetric methods for determination of sugar and related substances. Annal. Chem., 28 (3): 350-458. Ernani, P.R. and Dias, J. (1999). Soil nitrogen application in the spring did not increase apple yield . Ciencia Rural, 59(4): 645- 649.
Hansen, P. (1980). Yield components and fruit development in Golden Delicious apple as affected by timings of nitrogen supply. Scientia Hortic., 12: 243-257.
Khayyat, M.; E. Tafazoli; S. Eshghi and S. Rajaee (2007). Effect of nitrogen, boron, potassium and zinc sprays on yield and fruit quality of date palm. Am-Euras. J. Agric. and Environ. Sci., 2(3): 289 - 296.
Klein, I., Levin ,I, , Bar-Yosef, B., Assaf , R. and Berkovitz, A. (2006). Drip nitrogen fertigation of Starking Delicious apple trees. Plant and Soil 119(2) : 305- 314.
Kumar, J., Rehalia, A.S., Rana , S.S. and Chandel, J.S. (2003). Effect of pre and post bloom sprays of urea and boric acid on growth, fruit set, yield and fruit quality of apple cv. Starking Delicious. Progressive Horticulture, 35(1): 14-19.
Mengel, K., Kirkby ,E.A. , Kosegarten , H. and Appel, T. (2001). Principles Plant Nutrition. Kluwer Academic publisher Dordrecht.
Nava, G., Dechen, A.R. and Nachtiga, G.R. (2008). Nitrogen and potassium fertilization affect apple fruit quality in Southern Brazil. Commun.Soil Sci. Plant Anal., 39(1-2): 96-107.
Peryea, F.J., Nielsen, D. and Neilsen, G. (2003). Boron maintenance sprays for apple: Early season applications and tank- mixing with calcium chloride. Hort Science 38: 542- 546.
Roy, R., N.A., Finck, Blair, G.J. and Tandon , H.L.S. (2006). Plant nutrition for food security. A guide for integrated nutrient management. Food and Agriculture Organiza-tion of the United Nations, Rome.
Usenik, V. and Stamper, F. (2007). Effect of late season boron spray on boron accumulation and fruit set of Sumit and Hedelfinger sweet cherry (Prunus avium L.). Acta Agricultura Slovenca, 89 (1) : 51-58.
Weinbaum, S.A. (1988). Foliar nutrition of fruit trees. In: Plant growth and leaf applied chemicals. CRC Press, Inc. Boca Raton, Florida, USA: pp. 81-100.
Werner, H. (1978). Einfluss uterschiedlicher Bodenpflege and N. versorgung auf Frichtgualitatsmer-K male bei Schattenmorelle auf F 12/1, Erwerbstobstbau, 20 : 150-153.
Westwood, M.N. (1993). Plant efficiency: Growth and yield measurements. Temperate Zone Pomology. W.H. Free-man and Company (San Francisco) pp. 275-282.
Wojcik, P., Cieslinski, G., and Mika, A. (1999). Apple yield and fruit quality as influenced by boron applications. J. Plant Nutrition, 22: 1365-1377.
Wojcik, P. and Wojcik , M. (2003). Effect of boron fertiliza-tion on Conference pear tree vigor, nutrition and fruit yield and storability. Plant and Soil . 256 : 413.
This work is licensed under Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) © Author (s)