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Author: search.filters.author.Mary K GeorgeSubject: search.filters.subject.Chilli

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    Studies on interspecific hybrids of five species of Capsicum with special reference to its qualitative and quantitative characters
    (Kerala Agricultural University, 1977) Somanatha Pillai, E R; Mary K George; Mercy, S T
    Investigations on the inheritance of quantitative and qualitative characters and hetrosis among five species of Capsicum were carried out in the present study. Though crosses were made in all combinations, there was fruit setting in only ten crosses. Of these 2 crosses produced no viable seeds and in another cross, the seedlings did not survive. C anmtum as female parent failed to cross with any other species In the cross CF x CP, the embryo started normal development but collapsed in the early stage The F, hybrids exhibited heterosis for several economically desirable characters. All the hybrids showed a conspicuous reduction in the number and germination capacity of I1 ' , and I , seeds. Among the seven hybrids studied, the best economic combinations were Capsicum frutescens X C. baccatum and C. pendulum X C. microcarpum. These results indicate the possiblity of selecting desirable typss combining the economic attributes of both the parents from the segregating generations and by back crossing.
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    Heterosis in chilli (Capsicum annum L.)
    (Kerala Agricultural University, 1986) Manikantan Nair, P; Mary K George; Mohanakumaran, N
    An experiment was laid out in 1979 at the Department of Agricultural Botany, College of Agriculture, Vellayani to study the heterosis in Capsicum annum L. Nine parents and 36 F1 hybrids were compared. Eighteen economic attributes including vitamin A, vitamin C, capsaicin and oleoresin content were studied. All the characters under investigation manifested heterosis over midparental values though there was wide variation for different traits in different cross combinations. Maximum heterosis was noticed for number of primary bradches and vitamin C content. A comparison of average heterosis for various characters revealed that number of secondary branches topped the list followed by vitamin C, capsaicin content and number of primary branches. The studies identified two promising hybrids with desirable attributes namely Purple Round x Vellanotchi and Pant C1 x Purple Cluster. Negative heterosis was noticed for two important economic attributes namely number of days taken for blooming and number of seeds per fruit. For nutritive and quality characters very little expression of hybrid vigour in vitamin A content was noticed. However, there was considerable manifestation of hybrid vigour in vitamin C and oleoresin content.