Indian Society of Genetics & Plant Breeding
Traditional rice varieties (TRVs) collected from different
locations of Karnataka were evaluated for grain yield, its
attributes, reaction to blast, grain quality and cooking
parameters (protein, amylose, iron and zinc content using
NIR) by adopting standard procedures. Analysis of grain
nutrient contents such as protein, amylose, iron and zinc
revealed wide variation for the grain protein content (5.57-
14.96%), amylose (17.25-44.42 %), iron (9.17-15.72 mg/kg)
and zinc (10.24-33.40 mg/kg). Physical, physico-chemical
and cooking quality parameters estimated for the selected
49 TRVs also indicated significant difference for water
uptake ratio suggesting variation for kernel texture,
surface area and amylose content. Screening of theTRVs
for field resistance against leaf blast disease revealed that
11 out of 324 TRVs were found resistant at both Mandya
and Ponnampet. Molecular validation for leaf blast disease
resistance for selectedTRVs revealed that, Pi 9 resistance
type allele present in 48TRVs; Pish in 42; Pi38 in 46; Pib in
28; Pi 20(t) in 26 and PiK in 21 TRVs.
Keywords: Oryza sativa, traditional rice varieties, blast, rice quality parameters
Year: 2014
Volume: 74
Issue: Supplementry Issue
Article DOI: 10.5958/0975-6906.2014.00909.2
Print ISSN: 0019-5200
Online ISSN: 0975-6906
M. P. Rajanna info_circle
E. Gangappa info_circle
P. Mahadevu, B. Nandini, S. Ramesh, C. A. Deepak info_circle
G. Krishna Prasad info_circle
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