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Now showing 1 - 6 of 6
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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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    Effect of N, P and K on the growth and yield of chilli, variety pant C1
    (Kerala Agricultural University, 1985) Joseph, P A; Balakrishna Pillai, P
    An experiment was conducted at the Instructional Farm of the College of Horticulture, Vellanikkara to study th-j effect of different levels of N, P and K on the yield of chilli variety, Pant C1 during rainfed and irrigated seasons. The most economic levels of N, P_05 and K.,O were found to bs 92:52:39 and 90:52:26 kg/ha respectively for the rainfed and irrigated chilli crops. By spending an additional cost of Rs. 16.36 on two kg N and 4 kg K.,0 for the cultivation of chilli during the rainfed season compared to the cost of cultivation of chilli during irrigated season, an additional income of Rs. 3798 could be obtained. Cultivation of chilli variety Pant C1 is thus highly profitable during the rainfed season from May to September compared to the irrigated crop from November to February.
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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.
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    Variability in a set of chilli lines
    (Kerala Agricultural University, 1987) Gopalakrishnan, T R; Gopalakrishnan, P K; Peter, K V
    The study was aimed to estimate variability in the existing germplasm of chilli and to study components of variation. Significant differences were observed for many of the quantitative characters. Phenotypic coefficient of variation was maximum for fruits/plant (75.16) followed by fruit length (59.21) and main stem length (55.87). Fruit yield/plant recorded only moderate value of pcv (43.54) High heritability coupled with high genetic advance was observed for fruit length and main stem length. Fruits/plant had moderately high estimates of heritability and expected genetic advance. Days to flower, days to red chilli harvest and fruit girth having high heritability estimates had only low expected genetic advance. There is scope to evolve chilli line with long fruit aTid more fruits/plant through simple selection method.
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    Selective retention of cadmium and lead in different parts of chilli (Capsicum annuum L.)
    (Kerala Agricultural University, 2000) Jidesh, C V; Sam T. Kurumthottical
    To assess the selective retention of cadmium in chilli (Capsicum emnituin L.). a pot culture experiment was conducted at the College of Horticulture, Vellanikkara, Trichur during kharif 1996. Cadmium and lead were supplied through water soluble salts viz. CdQ2 and Pb(NO3)2 respectively. Requirements of N, P and K were met through chemically pure sources of urea, KH2PO4 and KC1. It was observed that in general, shoot portion of chilli plant maintained highest cadmium uptake followed by root and least uptake of cadmium was noted in fruit portion. This indicated a more selective retention of cadmium in the shoot portion. Similarly, in the same study, it was noted that lead was more selectively retained in the root portion than the other parts of the plant. Application of organic matter in conjunction with heavy dose of these heavy metals to soil resulted in the enhanced uptake of cadmium and lead in all the plant parts analyzed.