Influence of High Temperature on Seed Quality in Parental Lines of Rice Hybrids
41 / 3
Authors
-
HRISHIKESH SUTRADHAR
ICAR-Indian Agricultural Research Institute, New Delhi 110 012
Author
-
SK CHAKRABARTY
ICAR-Indian Agricultural Research Institute, New Delhi 110 012
Author
-
YOGENDRA SINGH
ICAR-Indian Agricultural Research Institute, New Delhi 110 012
Author
Keywords:
Hybrid rice, High temperature, Parental lines, Seed qualityAbstract
A study was undertaken with the parental lines of three Indian rice hybrids viz., DRRH-2, DRRH-3and PRH-10 during Kharif 2012-13 at ICAR-Indian Agricultural Research Institute, New Delhi. Parental lines were sown in three different sowing dates during the month of April (1st sowing), May (2nd sowing) and June (3rd sowing) to expose the plants to different range of temperatures and to understand its effect on seed quality. Seed quality parameters such as per cent mean germination at final count (83%, 87% and 92% in 15, 2nd and 3rd sowing, respectively), mean seed vigour index 1 (1878.37, 2242.63 and 2591.98 in 1st, 2nd and 3rd sowing, respectively), mean seedling dry weight (9.5 mg, 10.1 mg and 10.7 mg in 1st, 2nd and 3rd sowing, respectively) and mean 1000 seed weight (17.95g, 18.67 and 19.18 g in 1st, 2nd and 3rd sowing, respectively) were significantly decreased by high temperature. It is concluded that higher temperature during seed development stage reduces the seed quality irrespective of genotypes.
Downloads
References
1.HOUGHTON JT (2001). The scientific basis: contribution of working group I to the third assessment report of the intergovernmental panel on climate change. Climate Change. Cambridge University Press, pp: 525-582.
2.FAIRHURST TH AND A DOBERMANN (2002). Rice in the global food supply. Better Crops International, 16: 3-6.
3. ELLIS RH, TD HONGAND MT JACKSON (1993). Seed production environment, time of harvest, and the potential longevity of seeds of three cultivars of rice (Oryza sativa L.). Annals of Botany, 72: 583-590.
4. ELLIS RH AND TD HONG (1994). Desiccation tolerance and potential longevity of developing seeds of rice (Oryza sativa L.). Annals of Botany, 73: 501-506.
5. ELLIS RH (2011). Rice seed quality development and temperature during late development and maturation. Seed Science Research, 21: 95-101.
6. ABDUL BAKI AA AND JD ANDERSON (1973). Vigour determination in soybean by multiple criteria. Crop Science, 13: 630-637.
7. SPEARS JF, DM TEKRONY and DB EGLI (1997). Temperature during seed filling and soybean seed germination and vigour. Seed Science and Technology, 25: 233-244.
8. WILSON DO AND MB MCDONALD (1986). The lipid peroxidation model of seed deterioration. Seed Science and Technology, 14: 269-300.
