• R.Latha

Rice is the staple food of more than half of the world population especially the Asian countries. The demand for rice is ever increasing as the population growth increases all over the world. However the land, water, labour and other essential input are in a declining trend. To meet out the required production from the limited cultivable land the rice productivity has to be increased from the present level of 4.25 tonnes/ha . Similar is the case in India as well in Tamil Nadu. In Tamil Nadu due to the introduction of many high yielding rice varieties suitable for various districts, the rice productivity has reached to 3.7 tonnes/ha. Research on hybrid development has been intensified to increase the rice productivity more than 10 tonnes/ha as that of China. However, adoption of hybrid rice by farmers is limited due to some limitations of hybrid rice cultivation and seed production. Hence, rice varietal development with high yield potential and other desirable attributes viz., pest and disease resistance, abiotic stress tolerance and grain and cooking quality characteristics by recombination breeding is widely adopted in Tamil Nadu. The present study aims to evolve rice varieties with high yield potential and desirable grain and cooking quality traits through recombination breeding involving suitable parental genotypes. In the present study the rice varieties ASD 16, ADT 36, TKM 9, ADT 37,ADT 42,TPS 4, Improved white ponni, Pusa Basmati and BPT 5204 were crossed and the cultures were selected by pedigree breeding. The replicated yield trials PYT and AYT were conducted in RBD and the promising cultures TP 08053 ( 6739 kg/ha) , TP 08080 ( 7091 kg/ha), TP 08095 (7729) kg/ha and TP 09037 ( 6964 kg/ha )were identified with high yield potential and other desirable attributes. These cultures will be further evaluated in MLT and ART and will be releasd as varieties for commercial cultivation.

: Rice , variety, breeding , yield , Quality

"Characterization of Rice genotypes for yield and yield attributes", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 8, page no.a747-a752, August-2023, Available :http://www.jetir.org/papers/JETIR2308100.pdf

"Characterization of Rice genotypes for yield and yield attributes", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 8, page no. ppa747-a752, August-2023, Available at : http://www.jetir.org/papers/JETIR2308100.pdf