Phenotypic and microsatellite marker analysis of selected lines of aerobic rice under water limited conditions

Abstract

A field experiment was conducted at Chaudhary Charan Singh Haryana Agricultural University,
Hisar, India during the Kharif season of 2014 to evaluate segregating F3 aerobic × lowland progenies
of crosses MAS25 × PAU201, MAS26 × PAU201 and MASARB25 × PAU201 for various physiomorphological,
root traits and SSR markers linked to the traits promoting aerobic adaptation. In all
populations, enormous variation was observed for plant height, panicle length, effective number of
tillers per plant, root length, root thickness, fresh and dry root weight, 100 grains weight, number of
grains per panicle, grain length/breadth ratio and grain yield per plant. In these populations,
significant positive correlation was observed between yield per plant with plant height, effective
number of tillers per plant, length/breadth ratio, 100 grains weight, root length and/or root biomass.
In SSR marker analysis most of the selected plants were found to posses desirable alleles for the
markers reported earlier to be linked with the aerobic adaptation traits.