Indexing of IRRI-Global Rice Array Genotypes for Earliness to Meet the Challenges of Climate Change

Author: Deepayan Roy and Indra Deo Pandey

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Abstract

Early-maturing rice genotypes can help the farmers to sow the first season crop during late onset of monsoon and/or delayed release of irrigation water from reservoir. This scenario is the most common problem now-a-days in the north Indian hills. In this context, indexing of 11 exotic rice lines selected from the IRRI-Global Rice Array Antenna Panel, and a local check (Govind) were done to identify early maturing genotypes. The field experiment of present study was done at the N.E.B., Crop Research Centre of GBPUA&T, Pantnagar during kharif season of two consecutive years 2019-2020. The observations were recorded on six morphological traits and data obtained was subjected to statistical analysis. The Analysis of Variance of both seasons indicated that the mean sum of square due to genotype were highly significant for all studied trait indicating the preponderance of genetic variability in the experimental material. In the year 2019, URAIBOOL::IRGC 52785-1 and IR 126182-1-1-1 were foun

Keywords

Rice genotypes, Early maturing, IRRI, Global Rice Array, Antenna Panel.

Conclusion

Global Climate Change, water scarcity, labour shortage, declining water-table level predicted severe shortfall in rice production (Monaco et al., 2016). In order to address the challenges of climate change, there is a need to develop new varieties of rice which can adapt to future climates as well as can handle the consequences of pest and disease pressures. The GRA was designed in this line where there are two type of panels – Antenna panel and reference panel. The Antenna panel is like the eye of the breeder which facilitates in indexing of rice genotypes for superior traits in all aspects of crop improvement. It can be concluded from above study that URAIBOOL::IRGC 52785-1 and IRRI 104are early genotype out of all the exotic lines evaluated and that early line identified can be used to transfer earliness in our local high yielding varieties or can be used as a cultivar for the hills where there is problem of ripening of grains due to early advent of winters and growing these kinds

References

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How to cite this article

Roy, D. and Pandey, I.D. (2021). Indexing of IRRI-Global Rice Array Genotypes for Earliness to Meet the Challenges of Climate Change. Biological Forum – An International Journal, 13(3): 105-110.