International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 5
First page : (1113) Last page : (1122)
Article doi: http://dx.doi.org/10.18782/2320-7051.5850
Effect of Submergence Stress on Morpho-Physiological Characters of Paddy
B. Das1, A. K. Padhiary2*, S. Behera3, S. Mishra4, S. C. Swain5, S. K. Rout6
1College of Agriculture, Bhubaneswar, Odisha
2Krishi Vigyan Kendra, Sambalpur, Odisha*
3Krishi Vigyan Kendra, Kalahandi, Odisha
4Krishi Vigyan Kendra, Jagatsingpur, Odisha
5Agro polytechnic Centre, Ranital, Bhadrak, Odisha
6Agro polytechnic Centre, Rangeilunda, Odisha
*Corresponding Author E-mail: aditya.ugl@gmail.com
Received: 8.10.2017 | Revised: 22.10.2017 | Accepted: 25.10.2017
ABSTRACT
Field experiment was conducted in Adaptive Research Station, Sakhigopal, Puri during kharif 2014 to screen out the rice genotypes for the relative tolerance to submerged condition basing upon morpho-physiological and biochemical characters. Twenty two varieties having duration more than 145 to 170 days were taken under transplant condition in lowland where the water depth ranged from 50-100 cm during vegetative to reproductive stage. From the investigation it was found that there was more number of internodes (7.12) and adventitious roots (4.45) in the submerged tolerant variety Varshadhan and FR-43A as compared to susceptible varieties like Badabankoi, Sukasari and T-90 etc. Varshadhan exhibited highest plant height, more number of effective tillers whereas minimum value of these characters was recorded from susceptible varieties. Under water logged and submerged condition Varshadhan showed higher physiological growth parameters such as LAI, RGR, CGR and LAD among the genotypes. Dry matter accumulation was highest in submerged tolerant variety Varshadhan (1331.11 g m-2) and followed by FR-43A (1324 g m-2) both before and after submergence. The suitable combination among these varies depending upon the submergence tolerance of the variety. Sabita had the highest productivity (38.43 q/ha) than the others due to the suitable combination among the yield attributing characters in study area.
Key words: Kharif, Paddy, Roots, Morpho-physiological, Biochemical characters.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Das, B., Padhiary, A.K., Behera, S., Mishra, S., Swain, S.C. and Rout, S.K., Effect of Submergence Stress on Morpho-Physiological Characters of Paddy, Int. J. Pure App. Biosci. 5(5): 1113-1122 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5850
