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Item Cytological studies on four inter varietal crosses of capsicum annuum(Kerala Agricultural University, 1975) Manikantan Nair, P; Mary K GeorgeCytological studies of microsporocytes in four hybrids and five parents of the varieties of Capsicum annuum were conducted. Variety local blue was taken as the seed parent. The pollen parents Included varieties, Russian, Indian long red, Chinese g-'ant and Oskosh. All the four crosses revealed pronounced heterosis as regards pollea size. Further, all the hybrids manifested the presence of ring quadrivalents, chain quadrivalents, and trivalents while the hybrid local blue x Indian long red contained univalents, pycnotic behaviour, unequal distribution and anaphase bridges. The abnormal meiotic behaviour of microsporocytes had a positive correlation on the pollen sterility and affected the ultimate fruit set.Item Crossability studies and analysis of incompatibility in three species of capsicum(Kerala Agricultural University, 1977) Radhakrishnan, K P; Mercy, S T; Mary K GeorgeIn the present study interspecific hybridization could be successfully done among 3 species of Capsicum viz., C. annuum, C. fruiteseens and C. pendutum by the technique of cross pollination after amputation of the upper part of style along with the stigma followed by application of 5% sucrose solution on cut surface of the style. Embiyological analysis of the fertilized ovaries of self and cross combinations showed that in the incompatible combinations the embryosacs degenerated indicating failure of fertilisation. Further when pollination was done on the cut surface of the amputated styles after the application of 5% sucrose solution normal embryo development could be observed as in the case of selfed ovaries.