EFFECT OF ON-FARM TRIALS IN POPULARIZATION OF RICE VARIETY NDLR-7 (NANDYAL SONA) IN CHITTOOR DISTRICT OF ANDHRA PRADESH

P. GANESH KUMAR¹*, R. PRASANNA LAKSHMI², D. SUBRAMANYAM^3
1ICAR-Krishi Vigyan Kendra, Kalikiri, 517234, Acharya N. G. Ranga Agricultural University, Lam, 522034, Andhra Pradesh, India
²ICAR-Krishi Vigyan Kendra, Kalikiri, 517234, Acharya N. G. Ranga Agricultural University, Lam, 522034, Andhra Pradesh, India
³S.V. Agricultural College, Tirupati, 517502, Acharya N. G. Ranga Agricultural University, Lam, 522034, Andhra Pradesh, India
* Corresponding Author : gkperneti@gmail.com

Received : 04-04-2019     Accepted : 27-04-2019     Published : 30-04-2019
Volume : 11     Issue : 8       Pages : 8275 - 8276
Int J Agr Sci 11.8 (2019):8275-8276

Keywords : Rice, BPH, Assessment, NDLR-7
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to ICAR-Krishi Vigyan Kendra, Kalikiri, 517234, Acharya N. G. Ranga Agricultural University, Lam, 522034, Andhra Pradesh, India
Author Contribution : All authors equally contributed

The Rice crop is grown in 43934 ha in Chittoor district of Andhra Pradesh during Kharif and Rabi. The traditional medium slender grain cultivar BPT-5204 is most popularly grown variety during Kharif and occupies 30-40% of area in the district, which is susceptible to BPH and blast resulting in low yields and low net returns. Hence on farm trials were conducted during 2012-13, 2013-14 & 2014-15 with objective to assess the performance of new rice variety NDLR-7 which is medium slender short duration (130-135d) variety with tolerance to BPH and blast. During all the three years maximum number of BPH/sample was very low in NDLR-7 than BPT 5204 and maximum collections were recorded in November followed by October month. During all the years the variety recorded 6.1t/ha with average net returns of Rs.76,808/- per ha where as BPT-5204 recorded 5.83t/ha with average net returns of Rs.68,542/ha. Because of its high yield, pest tolerance and good cooking quality it is widely accepted by farmers through horizontal spread of technology. Due to extension activities of KVK, Kalikiri area under NDLR-7 has been increased from 80ha in 2013-14 to 2000 ha in 2016-17 owing to its tolerance to BPH, fine grain and high market price and first choice of farmers, millers and traders.

1. Witcombe J.R. and Virk D.S. (2001) Euphytica, 122, 451-462.
2. Prashanth, Shivashankar T., Mallikarjun, Chandrasekharaiah and Naveena N.L. (2012) Bioinfolet, 9 (4A), 454-456
3. Prasanna Lakshmi R., Srinivasulu, Bharghavarami Reddy C.H., Balahussain Reddy P. and Ganesh Kumar P. (2016) Advances in Life Sciences, 5 (18),8056-8057
4. Mishra D.K., Tailor R.S., Paliwal D.K. and Deshwal A.K. (2012) Indian Res J Ext Edu., 12 (2), 87-90.
5. Najeeb S., Sheik F.A., Parry G.A., Shikari A.B., Zaffar G., Kashyap S.C., Ganie M.A. and Shah A.B. (2018) Journal of Integrative Agriculture, 17(6), 1307-1314.