Screening of sunflower genotypes for drought tolerance with PEG 6000
22 / 2
Authors
-
N.K. GAYATHRI
Regional Agricultural Research Station, Nandyal, ANGRAU
Author
-
S.M.D. RAFI
Regional Agricultural Research Station, Nandyal, ANGRAU
Author
Keywords:
Sunflower seeds, PEG 6000, drought tolerance, germination, inbred linesAbstract
A study was conducted at Regional Agricultural Research Station (RARS), Nandyal during Kharif 2010 to screen the sunflower entries LDM 02, ARM 239 B, CMS 852 B, IB-5, 136-R, NDR-71, CMS 23 B, CMS 40 B, CMS 17 B, ARM 242 B, 150-R for drought tolerance with PEG 6000. The results showed that CMS 17 B recorded higher germination (93.33%), seedling length (11.56 cm) and seedling dry weight (7.525 g). High Promptness Index (PI = 4.096) and Root Length Stress Tolerance Index (RLSI = 79.53) were recorded by LDM 02 and Germination Stress Tolerance Index (GSI = 255.9) and Dry Matter Stress Tolerance Index (DMSI = 380.94) were by CMS 23 B. With increase in PEG concentration from 5 to 15% there was decrease in germination, seedling length, seedling dry weight and other parameters. In the analyses of interaction effects it was clearly shown that genetic variation is useful to develop cultivars suitable to arid and semi-arid zones. From this study, on the basis of DMSI values, which are considered as reliable indicator of drought tolerance in sunflower, the inbred lines CMS 23 B and CMS 40 B and CMS 17 B were grouped as best lines, IB-5 and LDM 02 as medium lines and remaining as sensitive to drought condition.
Downloads
References
1. SMOK MA, CHOJNOWSKI M, CORBINEAU F AND COME D (1993). Effects of osmotic treatments on sunflower seed germination in relation with temperature and oxygen. In: Come D and Corbineau F (eds) Proc 4th Intl Workshop on Seed: Basic and Applied Aspects of Seed Biology, Angers, France, pp 1033-38
2. HU FD AND JONES RJ (2004). Effects of plant extracts of Bothricoloa pertusa and Urochloa mosambicensis on seed germination and seedling growth of Stylosanthes hamata cv. Verano and Stylosanthes scarab cv. Seca. Aust J Agric Res 48: 1257-64
3. DODD GL AND DONOVAN LA (1999). Water potential and ionic effects on germination and seedling growth of two cold deserts scrubs. Am J Bot 86: 1146-53
4. ALAEI M, ZAEFIZADEH M, KHAYATNEZHAD M, ALAEI Z AND ALAEI Y (2010). Evaluation of germination properties of different durum wheat genotypes under osmotic stress. Middle-East Journal of Scientific Research 6: 642-46
5. JAJARMI V (2009). Effect of water stress on germination indices in seven wheat cultivar. World Academy of Science Eng Technol 49: 105-06
6. METWALI MR, EHAB, MANAL HE AND TAREK YB (2011). Agronomical triats and biochemical genetic markers associated with salt tolerance in wheat cultivars (Triticum aestivum L). Australian J of Basic and Applied Science 5(5): 174-83
7. FRASER T, SILK W AND ROSR T (1990). Effect of flow water potential on cortical cell length in growing region on maize roots. Plant Physiology 93: 648-51
8. MING DF, PEI ZF, NAEEM MS, GONG HJ AND ZHAN WJ (2012). Silicon alleviates PEG induced-deficit stress in upland rice seedling by enhancing osmotic adjustment. Journal of Agronomy and Crop Science 198: 14-26
9. MOUCHESHI A, HEIDARI B AND ASSAD MT (2012). Alleviation of drought stress effects on wheat using arbuscular mycorrhizal symbiosis. International Journal of Agriscience 291: 35-47
10. TURHAN H AND BASER I (2004). In vitro and in vivo water stress in sunflower (Helianthus annuus L). Helia 27(40): 227-36
11. AHMAD SHAMIM, AHMAD RASHID, ASHRAF MY, ASHRAF M AND WARAICH EH (2009). Sunflower (Helianthus annuus L.) response to drought stress at germination and seedling growth stages. Pak J Bot 41(2): 647-54
12. SINGH KP AND AFRICA BS (1985). Evaluation of moisture stress tolerance in castor cultivars during germination, seedling growth and emergence. Proc Indian Nat Sci Acad 51: 364-68
13. SINGH KP AND SINGH K (1983). Water uptake and germination of wheat seeds under different external water potentials in osmotic solutions. Seed Res 11: 13-19
14. ASHRAF MY, NAQVI MH AND KHAN AH (1996). Evaluation of four screening techniques for drought tolerance in wheat (Triticum aestivum L.). Acta Agronomica 44: 213-20
15. MANJULA K, SHARMA PS, RAMESH TATIKUNTA AND NAGESHWARA RAO T (2003). Evaluation of castor (Ricinus communis L) genotypes for moisture potential stress. Indian J Plant Physiol 8(3): 319-22
16. SAJJAN AS, BADANUR VP AND SAJJANAR GM (1999). Effect of external water potential on seed germination, seedling growth and vigor index in some genotypes of sunflower. In: Faroda SA, Joshi NL, Kathuja S and Kar A (eds) Proc Symp Recent Advances in Management of Arid Ecosystem pp 215-18
17. MOHAMMAD M EI, BENBELLA M AND TALOUIZETE A (2002). Effect of sodium chloride on sunflower (Helianthus annuus L) seed germination. Helia 37: 51-58
18. PUGNARIE FI, ENDOLZ LS AND PARDOS J (1994). Constraints by water stress on plant growth. In: Pessarakli M (ed), Plant and Crop Stress, Marcel Dekker Inc pp 247-59.
