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Experiment conducted with nine rice varieties during Pishanum season of 1989–90 revealed that Co 37 performed better in ratoon crop and recorded 3.2 t/ha grain yield. It was evident that the ratooning ability was influenced by stem thickness of stubble, carbohydrate content and leaf senescence of main crop. The study also suggests that by maintaining higher seed size and productive tiller in ratoon crop, there is ample possibilities to increase grain yield.

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A high yielding and early maturing prosomillet culture TNPm 230 was developed at the Centre of excellence, Athiyandal, Tamil Nadu Agricultural University and released TNPm 230 as ATL1at national level. It is a derivative of the cross involving TNAU 164 x IPM 19. It yields on average grain yield of 2152 kg/ha and straw yield of 5970 kg/haunder rainfed condition. This variety has registered 12 and 15 per cent increased grain yield over the checks TNAU145 and GPUP 21 respectively in All India Coordinated trials. Proposed variety has given Eight and 11 per cent increased grain yield over the qualifying varieties TNPm 228 and DHPrMV 2721 respectively. TNPm 230has semi-compact panicle, bold seeds and exhibited better grain quality than the checks; on par for a response to agronomic practices, susceptible to banded blight in AP only. Therefore, the entry TNPm 230 as ATL1 is recommended for the national level release except in Andhra Pradesh. KeywordsProso millet new early maturing variety https://doi.

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