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Phenotyping of CSR-10 X HBC-19 RILs in rice

KrishiKosh

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Title Phenotyping of CSR-10 X HBC-19 RILs in rice
 
Creator Pummy Kumari
 
Contributor Ahuja, Uma
 
Subject RILs, Basmati, Grain quality, Variability
 
Description The present investigation was undertaken to characterize 231 recombinant
inbred lines (F7) from a cross of CSR-10 X HBC-19 for agronomic and grain quality
traits. RILs were grown in augmented design at experimental area of CCS HAU Rice
Research Station, Kaul during kharif season of 2004-05. Data was recorded on various
morphological traits as plant height, tillers per plant, grain yield per plant, 1000-grain
weight and quality traits as hull colour, grain colour, hulling and milling percentage,
raw grain dimensions, cooked grain dimensions, aroma, alkali value and amylose
content. Data was analyzed for correlation coefficient and regression analysis to
estimate the levels of variation and association among agronomic and grain quality traits. RILs of F7 population showed large variation for all the agronomic and grain
quality traits. High genotypic (GCV) and phenotypic (PCV) coefficient of variation
were observed for maximum number of traits except thickness of raw grain and
hulling percentage. GCV occupied major extent of PCV. Correlation coefficient
revealed that yield per plant was associated with 1000-grain weight and plant height
but not with grain quality traits, indicating that yield can be combined with grain
quality. However, a balance has to be maintained as 1000-grain weight showed
negative association with grain quality traits. In addition to parental hull colours,
different colours as light brown, dark brown, red and yellowish green were observed.
Similarly, in addition to parental creamish grains, various colours as light brown,
green, medium red and reddish brown were observed. Mildly aromatic entries were
observed in addition to highly aromatic, non-aromatic parents and RILs. Frequency
distinbution indicated transgressive variation indicating polygenic control for all traits.
High variability observed for all agronomic traits and hull colour, grain colour, hulling
and milling percentage, length of raw grain, length: breadth ratio and elongation ratio
make these RILs ideal population for linkage studies and molecular marker analysis.
 
Date 2016-11-29T10:55:32Z
2016-11-29T10:55:32Z
2006
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/88024
 
Language en
 
Format application/pdf
 
Publisher CCSHAU