##plugins.themes.bootstrap3.article.main##

V. Sanjivkumar P. Malarvizhi

Abstract

In most soils, soil and fertilizer Phosphorus (P) are easily bound by either soil organic matter or chemicals and thus are unavailable to plants unless hydrolyzed to release inorganic phosphate. Therefore, the development of P-efficient rice varieties that can grow and yield better with low P supply is a key to improve crop production. P efficient plants play a major role in increasing crop yields due to shortage of inorganic P fertilizer resources, limited land and water resources and increasing environmental concerns. Based on the P uptake efficiency, four rice genotypes viz.,TNRH 180, CB08504, CB06732 and ADT 47 were selected from the field experiment and used in pot culture experiment with three levels of P using radio isotope technique to quantify the P acquisition efficiency (PAE) and P use efficiency (PUE) and also to determine the native P supplying power of the soils using 32P in low P soils. Growth and yield parameters, grain and straw yield and major nutrients uptake of rice genotypes were increased with enhanced level of phosphorus application. Among the four genotypes, TNRH 180 recorded the highest grain yield and uptake. Increasing the P application rate from 25 to 50 kg P2O5 ha-1 increased the %Pdff in grain and straw for all the genotypes. The mean per cent phosphorus utilization (PPU) ranged between 18.74 and 23.72. The PPU of the genotypes followed the order TNRH 180 (23.72 %) > CB08504 (23.36 %) > CB06732 (20.54%) > ADT 47 (18.74%). The PPU values were higher at lower level of P application (25 kg P2O5 ha-1) for the genotypes TNRH 180, CB08504 and CB06732. From this study showed that rice genotypes have the ability to utilize the both available and unavailable form of phosphorus by secreting some organic acids in the root portion to solubilize. Hence rice genotypes indicated above have the ability to increase phosphorus utilization efficiency.

Downloads

Download data is not yet available.

##plugins.themes.bootstrap3.article.details##

##plugins.themes.bootstrap3.article.details##

Keywords

Pdff, Pdfs, Phosphorus-32 (32P), P utilization, Rice, Yield

References
Aziz, T., Rahmatullah, M.A., Maqsood, M.A., Tahir, I. Ahmad and Cheema, M. A. (2006). Phosphorus utilization by six Brassica cultivars (Brassica juncea L.) from tri-calcium phosphate; a relatively insoluble P compound. Pakistan Journal of Botany, 38: 1529–1538.
Bali, A. S., Singh, M., Kumar, A., Kachroo, D. and Sharma, B.C. (2006). Effect of nutrient management on yield and nutrient response of hybrid rice (Oryza sativa L). Journal of Research, 5(1): 78-83.
Basak, R. K. and Dravid, G. K. (1992). Residual effect of rock phosphate and basic slag on the yield of rice. Environmental Biology, 8(2): 750-751.
Kaushik, B. D., Mishra, B. N., Gautam, R. C. and Rana, A. K. (2004). P-Nutrition in rice wheat cropping system with microbial consortia. Annals of Agricultural Research. New Series, 25: 179-186.
McKenzie, A. J. and Dean, L.A. (1948). Procedure for measurement of 31P, 32P in plant materials. Anaytical Chemistry, 20:559-560.
Motsara, M. R. (2002). Available nitrogen, phosphorus and potassium status of Indian soils as depicyed by soil fertility maps. Ferilizer News, 47(8): 15-21.
Piper, C. S. (1966). Soil and Plant Analysis. Hans publisher, Bombay.
Richardson, A. E., Lynch, J. P., Ryan, P. R., Delhaize E., Smith, F. A., Smith, S.E., Harvey P. R., Ryan M. H., Veneklaas E. J., Lambers, H., Oberson, A., Culvenor R. A. and Simpson, R. J. (2011). Plant and microbial strategies to improve the phosphorus efficiency of agriculture. Plant and Soil, 349: 121–156.
Shen, J., Yuan, L., Zhang, J., Li, H., Bai, Z., Chen, X., Zhang, W. and Zhang, F. (2011). Phosphorus dynamics: From soil to plant. Plant Physiology, 156: 997-1005.
Sudhir (1996). Interaction effect of phosphorus and sulphur on uptake of nitrogen, phosphorus and potassium and sulphur by pigeon pea (Cajanus cajan). Indian Journal of Agronomy, 45(2): 348-352.
Tiwari, K. N. (2002). Phosphorus. In: Fundamentals of Soil Science. Indian Society of Soil Science, Cambridge Printing Works, New Delhi. pp: 353-368.
Yadav, S. K., Krick, G. J. D. and Santos, M. B. (2002). Proc. International. Conf. Managing Natural Resources for Sustainable Agriculture Production in the 21st Century. New Delhi, 3, 871.
Citation Format
How to Cite
Sanjivkumar, V., & Malarvizhi, P. (2014). Differential response of phosphorus utilization efficiency in rice by tracer technique using phosphorus-32 under phosphorus stress environment. Journal of Applied and Natural Science, 6(2), 362-365. https://doi.org/10.31018/jans.v6i2.428
More Citation Formats:
Section
Research Articles