Browsing by Author "Nair, P K C"

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    Keeping quality of sugarcane setts of the popular varieties of Kerala
    (Kerala Agricultural University, 1983) Sukumaran Nair, S; Mathew Jacob, K; Nair, P K C
    In order to estimate the loss in weight of seed cane, viability of buds during storage and germination of viable buds, a study was taken up at the Sugarcane Research Station, Thiru valla during 1980-81 planting season, with four popular varieties of the tract. The maximum loss in weight was recorded in the variety Co-997 during storage upto 30 days and the loss in weight was rapid after 25 days of storage in the varieties Co 997 and Co. 785. This loss in weight is important when the seed materials are supplied to the cane growers in weight basis. The buds in the four varieties studied remained viable to a fair degree upto 1 5 days after the collection of the setts and thereafter the vaibility was reduced drastically. This loss was maximum in the variety Co 449 and minimum in Co-62175. Co 62175 showed the maximum tendency for pre-germination of buds in storage and such behaviour was minimum in Co 449. Considering the loss in weight of the seed cane, loss in viability and germination of the buds during varying periods of storages, the safe margin was found to be 15 days- It is desirable that the setts are planted as early as possible after harvest of the canes.
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    Performance of sugarcane varieties in Kerala
    (Kerala Agricultural University, 1982) Nair, P K C; Sukumaran Nair, S; Namboodiri, K M N
    With a view to evolving cane varieties superior to the local promising ones under cultivation in the river bank areas of Kerala, a varietal trial with 12 varieties was conducted at the Sugarcane Research Station, Thiru valla during the year 1977-79. Co. 62175 excelled all other varieties in germination in the plant crop, but not in the ratoon crops. Co. 997 is found to be better than other varieties in number of mi liable canes. But this number has contributed for yield. Co, 62175 is the highest yielder among the twelve varieties studied. The increase in yield over the most popular variety Co. 997 is 45. 4%, 22%, 32.4% for the plant crop, first ratoon, second ratoon respectively. The mean percentage increase over all the seasons is 37.6%. The increase in cane yield of this variety is due to the increased length and girth of canes. There is no significant difference in Brix, Pol and purity between the varieties. Co. 62175 can be recommended for commercial cultivation on the river banks of Kerala.