International Journal of Forestry and Crop Improvement

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

Eefect of Urea and Zinc Treatments on Biochemical Components of Guava Fruits cv. BHAVNAGAR RED


Affiliations
1 Department of Horticulture, College of Agriculture, Junagadh Agricultural University, Junagadh (Gujarat), India
2 Department of Processing and Food Engineering, College of Agricultural Engineering and Technology, Junagadh Agricultural University, Junagadh, (Gujarat), India
     

   Subscribe/Renew Journal


A field experiment was conducted during 2012-2013 to study the effect of foliar application of Zn and Urea on guava fruits to see the biochemical changes in guava fruits and found that the TSS, was significantly increased (11.85o Brix) with treatment U2 (1.5% urea). Acidity was significantly affected by Zn and urea treatments. It was noted that foliar spray of urea decreased the acidity. The minimum acidity of 0.48 per cent was observed where 1.5 per cent urea was sprayed. The ascorbic acid was significantly increased (220.79 mg/100ml) and the pectin content was also significantly affected by various levels of urea. Significantly the highest pectin content (0.67%) was observed with treatment U2 (1.5% urea). The reducing sugar was significantly increased with urea @ 1.5% and same treatments recorded significantly the maximum non-reducing sugar (4.66%). The total sugar was significantly increased (7.03%) with treatment U2 (1.5% urea). Over all result showed that foliar spray of urea and zinc sulfate can altered the biochemical parameters such as TSS, acidity, reducing sugar, pectin content, ascorbic acid , non-reducing sugar and total sugar in guava fruits.

Keywords

Urea, Zinc Tretements, Biochemical Components, Guava Fruits.
Subscription Login to verify subscription
User
Notifications
Font Size


  • Abadia J, Vazquez, S., Rellan-Alvarez, R., El-Jendoubi, H., Abadia, A., Alvarez-Fernandez, A. and Lopez-Millan, A.F. (2011). Towards a knowledge-based correction of iron chlorosis. Plant Physiol. & Biochem., 49 : 471-482.

  • Alvarez-Fernandez, A., Abadia, J. and Abadia, A. (2006). Iron deficiency, fruit yield and fruit quality. in: L.L. Barton, J. Abadia (Eds.) Iron Nutrition in Plants and Rhizospheric Microorganisms. Springer, Dordrecht, Netherlands, pp. 85-101.

  • Amanullah, S.P. (2010). Timing and rate of nitrogen application influence grain quality and yield in maize planted at high and low densities. J. Sci. Food Agric., 90 (1): 21-29.

  • AOAC (1970). Methods of analysis. Association of Official Analytical Chemists (11th Ed.). Washington, DC, USA.

  • Balakrishnan, K. (2000). Foliar spray of zinc, iron, boron and magnesium on vegetative growth, yield and quality of guava. Annals Plant Physio., 14 (2): 151-53.

  • Dasberg, S., Erner, Y. and Bielorai, H. (1984). Nitrogen balance in a citrus orchard. J. Environ. Qual., 13 : 353-356.

  • Dixi, C.X. and Gamdagin, R. (1978). Effect of foliar application of zinc and iron chlorsis and yield of kinnow. Pro. Hort. Sci., 10 (1):13-19

  • Davies, F.S and Albrigo, L.G. (1994). Citrus CAB International Wallingford UK, p. 254.

  • Dobroluybsikii, O.K., Strakhov, V.G. and Tanurkov, G.R. (1982). Effect of micro fertilizers on yield and quality of grape In Ukrainian south. Vitis 20: 183(Abst.).

  • Koo, R.C.J. (1988). Fertilization and irrigation effects of fruit quality. In: Ferguson, J.J., Wardowski, W.F. (Eds.), Factors Affecting Fruit Quality-Citrus Short Course. Proceedings, 97. University of Florida, Coop. Extension Ser., Gainesville, FL, pp. 35-42.

  • Lolaei, A., Rezaei, M. A., Khorrami and Raad, M. and Kaviani, B. (2012). Effect of paclobutrazol and sulfate zinc on vegetative growth, yield and fruit quality of strawberry (Fragaria × ananassa Duch. cv. CAMAROSA). J. Annl. Biological Res. India,3 (10):4657-4662.

  • Mitra, S.K. and Sanyal, B. (2004). Guava: ICAR publication, Pusa, New Delhi, 13-18 pp.

  • Panse, V.G. and Sukhatme, P.V. (1985). Statistical methods for agricultural workers, ICAR Publication. NEW DELHI, INDIA.

  • Sadasivam, S. and Manickam, A. (1992). Biochemical methods for agricultural sciences. Wiley Eastern Ltd., New Delhi, 246p.

  • Singh, B. (2002). Effects of macro and micro nutrient spray on fruit yield and quality of grapes (Visit vinifera L.) cv. PERLETTE. Acta Hort., 594: 197-202.

  • Singh, N.P. and Rajput C.B.S. (1977). Chemical composition of guava fruits as influenced by nitrogen application. Prog. Hort., 9 (2): 67-70.

  • Syvertsen, J.P. and Smith, M.L. (1996). Nitrogen uptake efficiency and leaching losses from lysimetric-grown citrus trees fertilized at three nitrogen rates. J. Amer. Soc. Hort. Sci., 121 : 57-62.


Abstract Views: 537

PDF Views: 0




  • Eefect of Urea and Zinc Treatments on Biochemical Components of Guava Fruits cv. BHAVNAGAR RED

Abstract Views: 537  |  PDF Views: 0

Authors

J. M. Parmar
Department of Horticulture, College of Agriculture, Junagadh Agricultural University, Junagadh (Gujarat), India
K. M. Karetha
Department of Processing and Food Engineering, College of Agricultural Engineering and Technology, Junagadh Agricultural University, Junagadh, (Gujarat), India
P. J. Rathod
Department of Processing and Food Engineering, College of Agricultural Engineering and Technology, Junagadh Agricultural University, Junagadh, (Gujarat), India

Abstract


A field experiment was conducted during 2012-2013 to study the effect of foliar application of Zn and Urea on guava fruits to see the biochemical changes in guava fruits and found that the TSS, was significantly increased (11.85o Brix) with treatment U2 (1.5% urea). Acidity was significantly affected by Zn and urea treatments. It was noted that foliar spray of urea decreased the acidity. The minimum acidity of 0.48 per cent was observed where 1.5 per cent urea was sprayed. The ascorbic acid was significantly increased (220.79 mg/100ml) and the pectin content was also significantly affected by various levels of urea. Significantly the highest pectin content (0.67%) was observed with treatment U2 (1.5% urea). The reducing sugar was significantly increased with urea @ 1.5% and same treatments recorded significantly the maximum non-reducing sugar (4.66%). The total sugar was significantly increased (7.03%) with treatment U2 (1.5% urea). Over all result showed that foliar spray of urea and zinc sulfate can altered the biochemical parameters such as TSS, acidity, reducing sugar, pectin content, ascorbic acid , non-reducing sugar and total sugar in guava fruits.

Keywords


Urea, Zinc Tretements, Biochemical Components, Guava Fruits.

References