Evaluation of cytoplasmic male sterile lines of rice for temperate region

Various agronomical, floral and out-crossing traits of two cytoplasmic male sterile lines, SKAU-7A and SKAU-11A were studied against the more popular exotic CMS lines under temperate conditions of Kashmir. The locally developed male sterile lines exhibited greater plant height, more number of tillers plant-1, spikelets panicle-1 and were early maturing. The two A-lines had greater stigma length, short and narrow flag leaves, better stigma exsertion, wider angle and longer duration of open floret, therefore, showed high percentage of out-crossing. The CMS lines developed are in temperate genotypic background and have performed well in comparison to exotic lines mostly used in sub-tropical parts of India.