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Author: search.filters.author.Nazeem, P AHas files: Yes

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Now showing 1 - 7 of 7
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    Correlation between seed and seedling characters in jack (Artocarpus Heterophyllus L.)
    (Kerala Agricultural University, 1980) Nazeem, P A; Gopikumar, K; Kumaran, K
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    Fruit set, fruit development and fruit drop in nutmeg (Myristica Fragrans Houtt.)
    (Kerala Agricultural University, 1981) Nazeem, P A; Sivaraman Nair, P C
    Studies on fruit set, development and fruit drop in nutmeg (Myristica fragrans Houtt.) conducted in Kerala, India have indicated that the fruit set was only 33.7 per cent while the post-set fruit drop was 74.4 per cent. The ultimate harvested yield accounted to only about 8.2 percent of the total flower production. Therefore, the best method to increase fruit production is to increase the set and to lower the fruit drop. Hand pollination increased the set by about 2.5 times as compared to the natural set. The fruits showed a sigmoid growth pattern and took seven to eight months to attain maturity Maximum drop period synchronised with the peak development period of sixth to sixteenth week after set, indicating nutritional imbalance as one of the major factors influencing fruit drop
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    Vegetative propagation in jack (Artocarpus Heterophyllus Lam)
    (Kerala Agricultural University, 1984) Nazeem, P A; Gopikumar, K; Kumaran, K
    Studies were conducted on vegetative propagation of jack. Grafting, budding and layering were tried. Approach grafting was found successful. All other methods of grafting, budding and layering on bearing tree gave negative results. Layering on one year old seedlings gave very good results. Best results were obtained with ring layering done within 10 cm from bottom of the plant with coconut pith as the media. Since juvenile factor is supposed to play an important role in rooting, it may be possible to propagate jack vegetatively by inducing new shoots near the collar region of the selected mother plants and then undertaking layering on these new shoots.
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    Seed set in ginger (Zingiber officinale rosc.) through in vitro pollination
    (Kerala Agricultural University, 1996) Valsala, P A; Sreekandan Nair, G; Nazeem, P A
    Different in vitro pollination techniques viz., stigmatic, srylar, intra-ovarian, placenta!, modified placental pollination and test-tube fertilization were tried in ginger flowers. The pollen grains suspended in ME, medium were used for pollination. The pollinated pistil or its part was cultured in the medium of 1/2 MS + NAA 0.5 mg 1' + BAP 2.5 mg 1 ' + coconut water 15 per cent v/v. Seed development was obtained in placental, modified placental pollination and test tube fertilization. The seed germinated under in vitro condition on supply of appropriate combination of 2,4-D, BAP and NAA
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    Hairy root induction in adapathiyan (Holostemma ada-kodien K. Schum.)
    (Kerala Agricultural University, Vellanikara, 2001) Karmarkar, S H; Keshavachandran, R; Nazeem, P A; Girija, D
    Holostemma ada-kodien, commonly known as adapathiyan is a laticeferous climber belonging to the family Asclepiadaceae. The root tubers of the plant are useful to cure various ailments of eye and many other human diseases. Due to the indiscriminate collection of root tubers, the plant population in the natural habitats has declined drastically and consequently it has been listed out as vulnerable and rare in the FRLHT red list of medicinal plants. The present study reports the hairy root induction in Holostemma useful in conservation of the plant and also to explore possibilities for in vitro production of the active chemicals in Holostemma, which would be a good alternative to meet its ever-increasing demand. The procedure for induction of hairy roots is given in detail.
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    Detection of Ralstonia solanacearum race 3 causing bacterial wilt of solanaceous vegetables in Kerala, using random amplified polymorphic DNA (RAPD) analysis
    (Kerala Agricultural University, Vellanikara, 2003) Deepa, James; Girija, D; Sally K, Mathew; Nazeem, P A; Babu, T D; Sukumara Varma, A
    Nine strains of Ralstonia solanacearum (Smith) Yabuuchi et al. isolated from bacterial wilt affected plants of brinjal, chilli and tomato in three different agroclimatic zones of Kerala were compared based on the utilization of carbohydrates, hypersensitivity reaction on capsicum leaves and RAPD analysis. Among these, six isolates were grouped into Biovar III and three, into Biovar IIIA. The isolates belonged to Races 1 and 3. RAPD analysis with 10 decamer primers revealed a high degree of polymorphism among the isolates. The primer OPF 8 yielded a unique band of 1.45 kb size for Race 3. This could be considered as a marker for rapid identification of Race 3 isolates of R. solanacearum.
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    Histology of organogenesis from callus cultures of black pepper (Piper nigrum L.)
    (Kerala Agricultural University, Vellanikara, 2003) Sujatha, R; Luckins C, Babu; Nazeem, P A