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  ICAR-National Rice Research Institute (NRRI)

CR Dhan 703 (CRHR 103)-2021 SVRC Odisha

Background
India has largest area under rice (about 43.86 mha) and second largest in production (1060 mt) in the world Country has so far developed and commercialized over 1300 rice varieties (including 127 hybrids) suitable for cultivation under different rice ecologies. However, meager quantity of quality seed avaliablity (SRR 40.42%) and high perceptivity to fragile climatic influences, its production is remaining low (3.66 t/ha) as compared to the global averages of 453t/ha (FAO, 2016). The situation is even worse in traditional rice growing regions like Odisha (4.17 mha, 1992 kg/ha, SRR-21.65%) and West Bengal (538 mha, 2730 kg/ha, SRR-3367%) where rice is main commodity of livelihood. Most of the cultivable land is suitable for rice production has already been exploited. The inputs like water and other national resources are being diversfied towards production of other crops as well as in industry and urbanization. The premier rice varieties of green revolution era like jaya and IR-8 have reached to a yield pateau. in this scenario, hybrid rice technology (15-20% more yield than HYVs) is considered a viable option to increase rice yield globaly and meet the future food demand of our ever growing population. Country has 50% rice area suitable (irrigated and favorable shallow-lowland) for hybrid cultivation and seed production, so, this venture has great business scope which is very much fit to the state plan to enhance rice productivity and livelihood.
Technology Details
Hybrid rice is found to be more remunerative in yield (1.0-15 t/ha), income (Rs. 15000-20000 from cultivation and Rs. 75000-85000/ha seed production) and creates additional employment for rural (100-105 additional mandays for per hectare seed production), thus has potential to add extra paddy to national food basket and enhance livelihood of deprived farmers. CR Dhan 703 (CRHR 103) is a long duration (40-145 days) CGMS based three lines hybrid released (SVRC-2021) for cultivation under irigated, shallow-lowland and Soro area of Odisha. It has long slender grains with average yield capacity of 75 to 80 t/ha. It can withstand water stagnation (up to 30cm) and low light conditions it has seedling stage cold tolerance, thus sutable for cultivation in boro season. It is moderately resistant leaf BLB, RTD and False smut, and MR to gall midge.