On Farm Testing of Rice Variety NDLR-7 as an Alternative to Traditionally Grown BPT-5204 in Kurnool District of Andhra Pradesh

Abstract

Back Ground: Rice (Oryza Sativa L.) is major crop in Andhra Pradesh being cultivated in 22.11 lakh ha average productivity of 3350Kg/ha Local BPT-5204 (samba mashuri) is high susceptibility to blast, sheath blight and gall midge. Since this is consumers’ preference both in the rural and urban markets, farmers are cultivating BPT-5204 though this variety is susceptibility to blast and BPH leads to high cost of cultivation .As an alternative to this NDLR-7 variety developed by Regional Agricultural Research Station (RARS), Nandyal, ANGRAU NDLR-7 was tolerant to blast, BPH, sheath blight, leaf folders and gall midge. Methods: NDLR-7 was introduced by KVK, Banavasi through on farm trail during 2016-17 and this trial was continued for three years as an alternative to traditionally grown BPT-5204. Result: The data from the three years of on farm trail reveals that the cost of cultivation has drastically reduced from Rs. 66050/ha to 50,538/ha due to reduced use of pesticides. The yield in demonstration plot (NDLR-7) was 7437.5 Kg/ha compared to control (5812 Kg/ha).

DROUGHT MITIGATION THROUGH HYDROGEL APPLICATION IN RICE (Oryza sativa L.) CULTIVATION

“…NDLR07 (NT20) performed the best among all experimental groups, with a growth of up to 105.2 cm at 127 DAS. The high growth could be because of NDLR07's adaptability to drought (Jayalakshmi et al, 2020). It is also evident that drought conditions had some effect on the growth rate in the groups treated with hydrogel.…”

“…For this study, seeds of 2 rice varieties viz., BPT5204 and NDLR07 were selected. BPT5204 is the locally used variety, while NDLR07 was the recently developed drought-resistant rice variety (Jayalakshmi et al, 2020). NDLR07 showed a greater yield and economic benefit when compared with BPT5204.…”