SCREENING OF RICE GENOTYPES FOR SALT TOLERANCE IN RELATION TO MORPHOLOGICAL TRAITS AND YIELD COMPONENTS UNDER FIELD CONDITION

BIBHA RANI¹*, V.K. SHARMA^2
1Department of Agricultural Biotechnology and Molecular Biology, Dr. Rajendra Prasad Central Agriculture University, Samastipur, Pusa, Bihar, 848125
²Department of Agricultural Biotechnology and Molecular Biology, Dr. Rajendra Prasad Central Agriculture University, Samastipur, Pusa, Bihar, 848125
* Corresponding Author : bibha9rani@gmail.com

Received : 20-06-2017     Accepted : 26-06-2017     Published : 18-07-2017
Volume : 9     Issue : 33       Pages : 4493 - 4497
Int J Agr Sci 9.33 (2017):4493-4497

Keywords : Morphological traits, Yield components, Tolerance indices, Percent reduction over control (% ROC), Correlation
Academic Editor : Ketan Govindbhai Kanjariya, Moushree Sarkar
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankful to Department of Agricultural Biotechnology and Molecular Biology, Dr. Rajendra Prasad Central Agriculture University, Samastipur, Pusa, Bihar 848125
Author Contribution : All author equally contributed

Eighteen rice genotypes were screened under field condition for different morphological traits and yield component i.e. chlorophyll content, days to 50% flowering, plant height, flag leaf area, tiller number per plant, panicle length, biological yield, number of panicle per plant, number of spikelet per panicle, number of filled and unfilled grainper panicle, 100 seed weight, grain yield per plant, root length, root biomass and root volume. Five tolerance indices for grain yield per plant i.e. TOL, SSI, MP, GMP and STI were also studied in the present investigation. The soil of salt affected experimental field, in which the genotypes were evaluated for their tolerance to salinity in the present study, was classified as sodic soil (pH 9.62, EC 0.37 dSm-1, SAR 9.86 and ESP 12.70). The experiment was carried out in randomized block design (RBD) with three replications in kharif season of 2013. The result was compared with the experiment done in normal soil condition (pH 7.74, EC 0.41 dSm-1, SAR 11.32 and ESP 14.32). All the morphological characters show significant reduction in various growths attributes of rice genotypes under salt stress. However, the extent of growth reduction under salt stress was specific and dependent on genotypes. Salt-sensitive genotype IR64 showed more percent reduction over control (% ROC) in compared to tolerant genotypes. The least % ROC for all the plant attributes was recorded by tolerant check CSR36. Tolerance indices MP, GMP and STI were found to be positively and significantly correlated with grain yield under both normal and stress condition.

1. Aggarwal P.K. and Mall R.K. (2002) Climate change, 52(3), 331-343.
2. Bhuiyan N.I., Paul N.R. and Jaber M.A. (2002) Proceedings of the workshop on modern rice cultivation in Bangladesh, 29-31, 4-23.
3. Ashraf M. and O’Leary J.W. (1996) Agron. Crop Sci., 176, 91-101.
4. Gregorio G.B., Dharmawansa S. and Mendoza R.D. (1997) Screening rice for salinity tolerance. IRRI Discussion Paper Series NO.22: 2-23, International Rice Research Institute,Manila, Philippines.
5. Munns R., James R.A. and Lauchli A. (2006) J. Exp. Bot., 57(5), 1025-1043.
6. Munns R. and Tester M. (2008) Annual Rev.Plant Biol., 59, 651-681.
7. Rani B. and Sharma V.K. (2016) Environment & Ecology, 34(4C), 2271—2273.
8. Khan M.S.A., Hamid A. and Karim M.A. (1997) J. Agron. Crop Sci., 179(3), 11-17.
9. Djanaguiraman M., Ramadass R. and Durga D.D. (2003) Madras Agric. J., 90 (1-3), 50-53.
10. Haq T., Akhtar J., Nawaz S. and Ahmed R. (2009) Pak J.f Bot. 41(6), 2943-2956.
11. Mansuri S.M., Jelodar N.B. and Bagheri N. (2012) AJB, 39, 9362-9372.
12. Maas E.V. (1986). Applied Agric.Res. 1, 12-26.
13. Ashraf M. (2009) Biotechnol. Adv., 27, 84-93.
14. Bhowmik S.K., Titov S., Islam M.M., Siddika A., Sultana S. and Haque M.D.S. (2009) African J of Biotec., 8 (23): 6490- 6494.
15. Ashraf M. Athar H.R., Harris P.J.C. and Kwon T.R. (2008) Adv. Agron., 97, 45-110.
16. Mansuri S.M., Jelodar N.B. and Bagheri N. (2012) AJB, 39, 9362-9372
17. Peng J. (1999) Nature, 400, 256–261.
18. Zhang J.Z., Creelman R.A. and Zhu J.K. (2004) Plant Physiol., 135, 615–621.
19. Barik A.S., Dal R., Pal S.K., Samini S. and Majundor R.C. (1993) Indian Agric., 37, 109-114.
20. Gonzales O.M. and Ramirez R. (1998) Int. Rice Res. Notes, 23(3), 19.
21. Afria B.S. and Narnolia R.K. (1999) Indian J. Plant Physiol., 4 (4), 311- 314.
22. Rosielle A.A. and Hamblin J. (1981) Crop Sci., 21, 943-946.
23. Fischer R.A. and Maurer R. (1978) Aust. J. Agric. Res., 29, 897-912.
24. Fernandez G.C.J. (1992) Effective selection criteria for assessing stress tolerance. In: Kuo, C.G. (Ed.), Proceedings of the international symposium on adaptation of vegetables and other food crops in temperature and water stress, Publication, Tainan, Taiwan.
25. Golabadi M., Arzani A. and Mirmohammadi S.A.M. (2006) Afr. J. Agric. Res., 1(5), 162-171.
26. Hosseini S.J., Sarvestani Z.T., Pindashti H. (2012) Int Res J Appl. Basic Sci., 3, 1-10.
27. Nayak A.R., Chaudhary D. and Reddy J.N. (2002) Indian Agric., 46, 45-47.