2. Institutional Publications
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Item PTB 47, a promising flood tolerant rice variety(Kerala Agricultural University, 1993) Rosamma, C A; Karunakaran, K; Rajappan Nair, NIn order to identify a high yielding variety suited to the flood prone areas, a total of 405 entries were screened for their flood tolerance. Selected entries were yield tested for three seasons and finally BR 51-315-4, a semi-tall nonlodging variety with reasonably high grain as well as straw yield was identified as the ideal variety for these areas. Performance of this variety was highly promising in the multilocational farmers field trials also and this high yielding variety is capable of replacing all the traditional rice varieties in flood prone areas.Item Red triveni, a promising rice variety(Kerala Agricultural University, 1993) Rosamma, C A; Karunakaran, K; Rajappan Nair, NReselection has been effectively utilised as a breeding programme for defect elimination by many workers and a successful programme in this direction is discussed in this paper. Reselection was attempted in the variety Triveni in order to overcome the drawback of sprouting of grains on the panicle itself under high moisture conditions. While attempting for reselection, red riced plants which might have evolved through natural mutation were identified. Red riced plants wilh dormancy were selected after progeny testing and the new line was designated as Red Triveni. Red Triveni exhibited dormancy fora period of 15 to 20 days. Performance of this culture was highly promising in all the station trials and adaptive trials and was released as Ptb 45.Item Hydration-dehydration technique, a mid-storage correction to prolong viability of rice seeds(Kerala Agricultural University, 1996) Girija, T; Sukumara Dev, V P; Asha Sankar, M; Rajappan Nair, N