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Item Genetic divergence in banana(Kerala Agricultural University, 1985) Valsalakumari, P K; Sivaraman Nair, P C; Prabhakaran, P VOn the basis of multtvariate analysis 62 cultivars of banana belonging to different genomic groups were grouped into 8 clusters considering 22 characters simultaneously. The characters pulp/peel ratio on volume basis followed by the weight of fruit contributed the maximum towards divergence.Item Genetic variability in banana(Kerala Agricultural University, 1986) Valsalakumari, P K; Sivaraman Nair, P CItem Studies on pollen storage in banana(Kerala Agricultural University, 1986) Karmacharya, J K L; Aravindakshan, M; Valsalakumari, P KStudies on the pollen storage of four banana clones showed that the pollen viability could be maintained for the maximum period of 24 to 38 days, depending upon the clones, when the bracts with flowers intact were stored in the refrigerator (4"C). The clone Bodies Altafort exhibited the maximum storage life and the least rate of reduction of viability while Hybrid Sawai had the minimum storage life and maximum rate of reduction of viability.Item Promising variety of sapota for tropical homesteads(Kerala Agricultural University, 1987) Aravindakshan, M; Valsalakumari, P K; Gopikumar, KItem Interclonal hybridisation in banana(Kerala Agricultural University, 1987) Aravindakshan, M; Valsalakumari, P K; Karmacharya, J K LItem Performance of citrus species under partial shade in coconut garden(Kerala Agricultural University, 1987) Valsamma Mathew; Aravindakshan, M; Valsalakumari, P K; Parameswaran, N KItem Cross-compatibility and seed set in banana cultivars(Kerala Agricultural University, 1990) Krishnakumar, M P; Valsalakumari, P K; Aravindakshan, MIn the studies undertaken to test the compatibility and seed set in banana cultivars, out of the 18 cross combinations only 3 combinations were found successful. The successful combinations were Palayankodan x Pisang Lilin; Rasthali x Pisang Lilin and Nendran x Pisane Lilin. Seed production was maximum in Palayankodan (102.96 seeds per bunch) followed by Nendran (13.65 seeds per bunch). Rasthali produced the least number of seeds per bunch (10.98). The fertility pattern with respect to position of hands in a bunch showed variation. In Palayankodan, fertility was maximum in the third hand (27.33); while in Nendran second hand was more fertile (7.00). Rasthali produced maximum number of seeds in second and third hands (2.66).Item Cross compatibility of banana clones(Kerala Agricultural University, 1992) Karmacharya, J K L; Aravindakshan, M; Valsalakumari, P KStudies were conducted in the Department of Pomology and Floriculture, College of Horticulture, Vellanikkara, Kerala on the cross compatibility of banana clones using 20 female and six male parents. Out of the 27 cross combinations tried, only eight combinations, all between triploid female and diploid male parents, were compatible. The results pointed out that interclonal hybridization is possible in banana using compatible clones. Seed production was maximum in the cross Agniswar x Pisang Lilin followed by Palayankodan x Pisang Lilin (AA) and Palayankodan x Sikuzani. The fertility pattern with reference to hands in a bunch showed varietal variation. Seed fertility was observed for the first time in Nendran, the leading commercial cultivar of Kerala, thus pointing out the possibility of improvement of this clone through hybridization.Item Effect of seed treatment on germination of seeds in banana(Kerala Agricultural University, 1991) Krishnakumar, M P; Valsalakumari, P KItem In vitro germination of hybrid seeds of banana(Kerala Agricultural University, 1992) Lekshmy, M L; Valsalakumari, P K; Rajmohan, K