Modification Vegetative of Plant Height in Paddy After Pbz Application with Rice Oil Palm Planting System


Abstract


Paclobutrazol (PBZ) is one of the hormone that acts by inhibiting activity of biosynthetic pathway of GAs, resulting in retardation if internodes in paddy. The aim of this experiment to find out concentration of Paclobutrazol (PBZ) suitable application in paddy with planting rice-oil palm system. This research was conducted using Split Plot Design factorial in four replicated which main plot were varieties IR 64, Mekongga, Inpari Sidenuk and Ciherang, whereas sub plot were used to concentration of PBZ with 0, 200, 400 and 600 ppm and was applied at panicle initiation (PI). Paddy varieties were planted with transplanting after 3 weeks in the seedling. Measuring plant height was conducted at three times, before application, two weeks after application and at harvesting. The result was shown that plant height before application was no signifant for among varieties and concentration, unlike plant height at two weeks after application and harvest time, following increase of concentration PBZ, plant height was decreased and significantly, respectively. The reduction of plant height with concentration PBZ at 400 ppm was found to be optimum as compare that ones. There was no interaction between varieties and concentrations of PBZ

Keywords


Concentration, Paddy, Rice-Oil Palm, Concentration, Paczlobutrazol, Panicle Initiation

Full Text:

PDF

References


Barrett, J.E. and Bartuska, C.A. 1982. PP333 effects on stem elongation dependent on ite of application. Hortscience, Vol. 17; No. 5, p737-738.

Davies, T. D., Steffens, G. L. and Sankhla, N. 1988. Triazole plant growth regulators. Hort. Rev. 10: 63-105.Ismail, M.R., 2015. Crop Improvement Strategies in Rice production Under Stressfull Environment. Seminar pangan dengan tema Food Security and Climate Change Challenge. Fakultas Pertanian UMSU, Medan 1 Juni 2015. (prosiding Nasional).

Dorairaj, D and Ismail MR, 2017. Distribution of Silicified Microstructures, Regulation of Cinnamyl Alcohol Dehydrogenase and Lodging Resistance in Silicon and Paclobutrazol Mediated Oryza sativa. Front. Physiol. 8:491.

Latimer,J.G., Scoggins, H.L. and Banko, T.J. 2000. Using plant growth regulators on containerized herbaceous perennials. Virginia Tech. Publication No. 430. Blacksburg, VA, USA.

Lever, B.G., Shearing, S.J., and Batch, J.J. 1982. PP333 a new broad spectrum growth retardant. In Proceedings of the 1982 Brithis Crops protection Conference Weeds, Vol 1, pp 3-10. Croydon; BCPC publication.

Lubis, E. Suwarno, & M. Bustaman. 1999. Genetik Ketahanan Beberapa Varietas Lokal Padi Gogo terhadap Penyakit Blas. Balai Penelitian Tanaman Padi Sukamandi. Penelitian Pertanian Tanaman pangan V. 18:2:1999. Puslitbangtan.

Manto, 2015. Pengaruh Sistem Tanam Terhadap Pertumbuhan dan Produksi Padi (Oryza sativa L.) pada varietas Inpari 10 di bawah Tegakan Kelapa Sawit. Universitas Muhammdiyah Sumatera Utara, Medan. Final Proyect, Unpublished.

Rademacher, W. 2000. Growth retardants: effects on gibberellin biosynthesis and other metabolic pathways. Ann. Rev. Plant Physiol. Plant Molec. Biol. 51: 501-531.

Smith, C.W and Dilday, R.H. 2003. Rice: Origin, History, Technology and Production, John Wiley & Sons, Inc.

Sinniah, U. R., Wahyuni, S., Syahputra, B. S. A. and Gantait, S. 2012. A potential retardant for lodging resistance in direct seeded rice (Oryza sativa L.). Canadian Journal of Plant Science, Vol.92, No. 1, pages 13-19.

Syahputra, B.S.A. 2013. effect of paclobutazol on lodging resistance, growth and yield of direct seeded rice. Ph.D Theses, Universiti Putra Malaysia (UPM), Serdang, Selangor, Malaysia. (Unpublished).

Syahputra, B.S.A., Sinniah, U.R., Rastan, S.S.O. and Ismail, M.R. 2013. Changes in Gibberellic Acid (GA3) content in Oryza sativa due to Paclobutrazol treatment. Journal of Food and Pharmaceutical Science. Vol.1, No.1 pages 14-17

Syahputra, B.S.A., Sinniah, U.R., Ismail, M.R. and Malappa, K.S. 2016b. Optimization of paclobutrazol Concentration and Application Time for Increased Lodging Resistance and Yield in Field-growth Rice. The Philippine Agriculture Science(PAS), Vol. 9, No. 33.


Refbacks

  • There are currently no refbacks.