Studies on Synchronization of Parental Lines in Hybrid Rice
22 / 0
Authors
-
SUSHIL PANDEY
Division of Seed Science and Technology, IARI, New Delhi 110012
Author
-
S.P. SHARMA
Division of Seed Science and Technology, IARI, New Delhi 110012
Author
-
M. DADLANI
Division of Seed Science and Technology, IARI, New Delhi 110012
Author
Keywords:
Synchronization of flowering, growth duration, effective accumulated temperature, leaf number differenceAbstract
Seeding interval between the parental lines of Pusa Rice Hybrid-3 was studied using the methods of Growth duration (D), Effective accumulated temperature (EAT) and Leaf number difference (LND). A comparison of the coefficient of variation (CV) of the three methods showed that the variability was the least for the leaf number method, followed by the difference in days to flowering and the highest for effective accumulated temperature suggesting more stability of leaf number over the seasons.
Downloads
References
1. XU. S. & LI. B. (1988). Managing hybrid rice seed production. In: Hybrid Rice Proc. Int. Symp. Hybrid Rice, Changsha (China): IRRI, Manila, Philippines. Pp. 157-164.
2. SINGH, S., B.C. VIRAKTAMATH, M.S. RAMESHA, C.H.M. VIJAYKUMAR & A.M. ILYAS (1998), Synchronization studies in hybrid rice seed production. IRRN, 23(1):23.
3. JIMMING, L. (1993). Determination of seeding interval of parental lines in hybrid rice seed production. In: International Hybrid Rice Training Course. Hunan Hybrid Rice Research Centre, Hunan, China, pp.67-70.
4. VIRAKTAMATH, B.C. & M.S. RAMESHA (2000). Hybrid Rice Seed Production: Preliminary Considerations. In: Lectures presented in Summer School on Advances in Hybrid Seed Production Technology, IARI, New Delhi-12. Singhal, N.C. & A.K. Vari (Eds.), pp. 83-90.
5. RANGASWAMY, M., K. THIYAGARAJAN, A.S. PONNUSWAMY, P. JAYAMANI & P. RANGASWAMY. (1996). Hybrid rice seed production techniques. In: Hybrid Rice Technology, School of Genetics, Tamil Nadu Agricultural University, Coimbatore. pp. 88-95.
6. VIRAKTAMATH, B.C. (1995). Hybrid Rice Seed Production II. Synchronization prediction and adjustment of flowering. In: Hybrid Rice Technology, DRR, Hyderabad pp. 56-62.
7. VIJAYKUMAR, C.H.M., M.S. RAMESH, B.C. VIRAKTAMATH, S. SINGH & M.I. AHMED (1998). Analyzing leaf number in parental lines for hybrid rice seed production. IRRN. 23(2): 27.
8. VIRAKTAMATH, B.C. (1998). Leaf number a reliable parameter for determining seeding intervals between parental lines in hybrid rice seed production. IRRN. 23(2): 25.
