International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(5): 1627-1643

Identification of Rice Genotypes for Resistance against Yellow Stem Borer in Irrigated Rice
Sudha Rani1*, Ch. Chiranjeevi2, T. Madhumathi2, Krishnam Raju3 and Sk. Nafeez Umar4
1Entomology, Agricultural Research Station, Garikapadu, Krishna District,
Andhra Pradesh, India
2Department of Entomology, 4Department of Statistics and Mathematics, Agricultural College, Bapatla, Guntur district, Andhra Pradesh, India
3Department of Plant Pathology, Agricultural College, Rajamahendravarum, East Godavari district, Andhra Pradesh, India
*Corresponding author

The relative resistance or susceptibility of nearly 215 rice genotypes supplied by Indian Institute of Rice Research, Hyderabad was screened to identify the resistant genotype against rice yellow stem borer. The trial was conducted following augmented block design with two checks i.e., local check (BPT 5204) and susceptible check (TN1) for a period of two successive kharif seasons (2016 & 2017). The per cent incidence of stem borer was recorded at their peak infestation of dead hearts at tillering stage and white ears at reproductive stage. The status of the screened genotypes was determined by following the standard evaluation scale (SES) for stem borer as suggested by IRRI. The pooled results of screening trial for two seasons inferred that, among 215 genotypes screened, no entry exhibited resistance scale, 87 entries registered moderate resistant, 116 were found moderately susceptible and 22 lines recorded the susceptible scale with respect to per cent dead hearts infestation. Correspondingly, the pooled mean data relating to per cent white ears indicated that, only 14 entries were resistant, while 101 entries had registered  moderate resistant, 82 entries were moderately susceptible, 17 entries recorded susceptible status and only 1 entry had exhibited susceptible status. The rice entries which had exhibited resistance at dead heart stage were found susceptible at white ears stage and vice versa as both the factors were independent. Hence, upon clean examination only seven rice entries with IC No. 381538, 450535, 463380, 464140, 464186, 574807 and 578388 were found to exhibit resistance or moderate resistance against yellow stem borer at both vegetative and reproductive stages of rice crop.

Keywords: Rice germplasm, Yellow stem borer, Augmented block design, SES scale
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How to cite this article:

Sudha Rani, D., Ch. Chiranjeevi, T. Madhumathi, S. Krishnam Raju and Nafeez Umar, Sk. 2020. Identification of Rice Genotypes for Resistance against Yellow Stem Borer in Irrigated Rice.Int.J.Curr.Microbiol.App.Sci. 9(5): 1627-1643. doi: