The Asian Journal of Horticulture

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

Role of Nutrients on Biochemical Changes in Various Growth Stages of Watermelon


Affiliations
1 Department of Vegetable Crops, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore (T.N.), India
2 Department of Fruit Crop, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore (T.N.), India
3 Department of Remote Sensing and GIS, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore (T.N.), India
     

   Subscribe/Renew Journal


An experiment was conducted to find the effect of different levels of nutrients through water soluble fertilizers along with Azophosmet and humic acid on biochemical attributes of watermelon. Application of 125 per cent of water soluble fertilizers viz.,250:125:125 kg/ha of NPK in addition to Azophosmet and humic acid showed the best performance in almost all the parameters studied in both seasons I and II, as it recorded the highest total chlorophyll content (1.588, 2.574, 2.426 and 2.162 mg g-1 in season I and 1.652, 2.638, 2.556 and 2.379 mg g-1 in season II, T8 recorded the highest soluble protein content (6.02, 11.66, 11.19 and 8.42 mg g-1 in season I and 6.18, 12.24, 11.58 and 9.14 mg g-1 in season II, nitrate reductase activity at all days observed during both seasons viz., season I and season II ( 9.29, 16.89, 14.0,9.11 μg NO2g-1 h-1 and 9.74, 17.24, 14.35 and 9.46 μg NO2g-1h-1 at 30th, 45th, 60th and 75th DAS. IAA oxidase was the highest at 30th DAS and declined at 45th, 60th and 75th DAS in both the seasons.

Keywords

Watermelon, Water Soluble Fertilizer, Azophosmet, Humic Acid, Chlorophyll Content, Soluble Protein Content, Nitrate Reductase Activity, IAA Oxidase Activity.
Subscription Login to verify subscription
User
Notifications
Font Size


  • Balasubramanian (2008). Comparative analysis of growth, physiology, nutritional and production changes of tomato (Lycopersicon esculentum Mill.) under drip fertigation and conventional systems. Ph.D. (Hort.) Thesis, Tamil Nadu Agricultural University, Coimbatore, T.N. (INDIA)

  • Barlaan, E.A. and Ichi, M. (1997). Relationship of nitrate and nitrite reductase activities to yield and agronomic traits in rice. In: Proc. 8th SABRAO Int. Congr. September, 24-28, Seoul, Korea. pp. 181-182.

  • Gnanachitra, M. (2000). Studies on the development of acid tolerant Azospirillum for tea. Ph.D. Thesis, Tamil Nadu Agricultural University, Coimbatore, T.N. (INDIA).

  • Goreta S., Perica, S., Dumicic, G., Bucan, L. and Zanic, K. (2005). Growth and yiel of watermelon on polyethylene mulch with different spacings and nitrogen rates. American J. Hort. Sci., 40 (2) :366-369

  • Gowri, S. (2005). Physiological studies on aerobic rice (Oryza sativa L.). M.Sc. Thesis, Tamil Nadu Agricultural University, Coimbatore, T.N. (INDIA).

  • Hebber, S.S., Ramachandrappa, B.K., Nanjappa, H.V. and Prabhakar, M. (2004). Studies on NPK determined by nuclear and traditional techniques. Nutr. Cycl. Agroecosyst., 68 : 1-11.

  • Meenakshi, N. and Vadivel, E. (2003). Effect of fertigation on growth and dry matter production of hybrid bitter gourd (Momordica charantia L.). Orissa J. Hort., 31(2): 33-34

  • Mishra, S.P., Sinha, S.K. and Rao, N.G.P. (1980). Genetic analysis of nitrate reductase in relation to yield in heterosis sorghum. Z. Pflanzenzenbta, 85 : 16-18.

  • Neerja, R., Kumar, S. Ramesh and Dhatt, K.K. (2005). Effect of nitrogen levels and growing media on growth, flowering and bulb production of lillium cultivars. J. Orna. Hort., 8 (1) : 36-40.

  • Noggle, C.R. and Fritz, C.J. (1986). Introductory plant physiology. Prentice Hall of India Pvt. Ltd. New Delhi. pp. 171.

  • Panse, V.G. and Sukhatme, P.V. (1978). Statistical methods for agricultural workers, II Edn. ICAR, New Delhi. pp.134-192.

  • Ronen. G., Cohen, M., Zamir, D. and Hirschberg, J. (1999). Regulation of carotenoid biosynthesis during tomato fruit development: expression of the gene for lycopene epsilon cyclase is down- regulated during ripening and is elevated in the mutant Delta. Plant J., 17: 341–351.

  • Sachdev, P., Debe, D.L. and Rastogi, D.K. (1987). Effect of varying levels of zinc and molybdenum on plant constituents and enzyme activity at different growth stages of wheat. J. Nuclear Agric. & Bio., 16 (4) : 187-196.

  • Simmonds, N.W. (1979). Principles of crop improvement. Longman Group Ltd. 277 p.

  • Stalyarav, A.I. (1974) . Characteristics of nitrogen metabolism in tomatoes, cucumber and onion in relation to nutrition. Fiziologiya I.Biokhimiya Kul Hurnykh Rastenii, 6 : 506 – 511.

  • Tamilselvan, T., Anburani, A. and Manivannan, S. (2006). Response of black night shade (Solanum nigrum) to organic nutrients. In: National Seminar on Convergence on Technologies for Organic Horticulture. Tamil Nadu Agricultural University, Coimbatore, India.


Abstract Views: 282

PDF Views: 0




  • Role of Nutrients on Biochemical Changes in Various Growth Stages of Watermelon

Abstract Views: 282  |  PDF Views: 0

Authors

J. P. Sajitha
Department of Vegetable Crops, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore (T.N.), India
R. M. Vijayakumar
Department of Fruit Crop, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore (T.N.), India
L. Pugalendhi
Department of Vegetable Crops, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore (T.N.), India
D. Durga Devi
Department of Fruit Crop, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore (T.N.), India
Jagadeeswaran
Department of Remote Sensing and GIS, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore (T.N.), India

Abstract


An experiment was conducted to find the effect of different levels of nutrients through water soluble fertilizers along with Azophosmet and humic acid on biochemical attributes of watermelon. Application of 125 per cent of water soluble fertilizers viz.,250:125:125 kg/ha of NPK in addition to Azophosmet and humic acid showed the best performance in almost all the parameters studied in both seasons I and II, as it recorded the highest total chlorophyll content (1.588, 2.574, 2.426 and 2.162 mg g-1 in season I and 1.652, 2.638, 2.556 and 2.379 mg g-1 in season II, T8 recorded the highest soluble protein content (6.02, 11.66, 11.19 and 8.42 mg g-1 in season I and 6.18, 12.24, 11.58 and 9.14 mg g-1 in season II, nitrate reductase activity at all days observed during both seasons viz., season I and season II ( 9.29, 16.89, 14.0,9.11 μg NO2g-1 h-1 and 9.74, 17.24, 14.35 and 9.46 μg NO2g-1h-1 at 30th, 45th, 60th and 75th DAS. IAA oxidase was the highest at 30th DAS and declined at 45th, 60th and 75th DAS in both the seasons.

Keywords


Watermelon, Water Soluble Fertilizer, Azophosmet, Humic Acid, Chlorophyll Content, Soluble Protein Content, Nitrate Reductase Activity, IAA Oxidase Activity.

References