Reprints

Permanent URI for this collectionhttp://localhost:4000/handle/123456789/1975

Browse

Filters

19963

Settings

Has files: YesSubject: search.filters.subject.screening

Search Results

Now showing 1 - 3 of 3
  • No Thumbnail Available
    Item
    Co 88017, a promising sugarcane variety
    (Kerala Agricultural University, 1996) Thomas Mathew; Alexander, D; Santhakumari, S; Sreekumar, K; Jessy M Kuriakose; Hangovan, R
    The results of the study on sixteen zonal varieties received from the All India Co-ordinated Project (AICRP) on Sugarcane along with Madhuri (CoTl 88322), the ruling variety in Kerala as check revealed that Co 88017 out yielded the check in tenns of cane yield as well as commercial cane sugar. It has recorded a cane yield of 102.5 t ha.' and sugar yield of 13.18 t ha'. This variety was superior to many other entries tested in quality aspects of juice. Co 88017 was moderately resistant to red rot disease.
  • No Thumbnail Available
    Item
    Evaluation of mango fruits in storage for resistance against Anthracnose (Colletotrichum gloeosporioides penz) and Diplodia stem end rot (Diplodia natalensis pole evans)
    (Kerala Agricultural University, 1996) Banik, A K; Kaiser, S A K M; Dbua, R S
    A total number of 28 cultivars of mango fruits were evaluated against the anthracnose pathogen (Colletotrichum gloeosporioides Penz) and Diplodia stem end rot pathogen (Diplodia natalensis Pole Evans) after harvest using hypodermic needle method of inoculation on the Gangetic plains of West Bengal, India during the months from May to July of 1992 and 1993. A wide range of variation in respect of disease reaction occurred among the test cultivars. The average grade ranged from resistant to highly susceptible. Among the 28 cultivars tested, 13 cultivars, namely Alphonso, Langra Banarasi, Chandankosa, Dashehari, Lakshmanbhog, Lalphuli, Langra, Mohanbhog, Piaraphuli, Saradamonibhog, Sarikhas, Totapuri and Zardalu were resistant while seven cultivars namely, Amrapalli, Biswanath Chatterjee, Bombay Yellow, Fazli, Gulabkhas, Kohitoor and Safdar Pasand were moderately resistant to C. gloeosporioides. Among those 28 cultivars only three cultivars namely, Alphonso, Krishnabhog and Totapuri Red Small were resistant while eight cultivars, namely Dashehari, Biswanath Chatterjee, Lakshmanbhog, Lalphuli, Piaraphuli, Saradamonibhog, Totapuri and Zardalu were moderately resistant to D. natalensis. The remaining cultivais were moderately susceptible to highly susceptible in reaction against the respective pathogen.
  • No Thumbnail Available
    Item
    Screening of black pepper (Piper nigrum L.) calliclones for phytophthora foot rot resistance / tolerance
    (Kerala Agricultural University, 1996) Shylaja, M R; Sreekandan Nair, G; James Mathew
    Calliclones of different black pepper cultivars viz., Kalluvally, Cheriakanyakkadan, Balankotta, Karimunda and Panniyur-1 were regenerated from calli, screened against toxic metabolite(s) of Phytophthora capsici. The regenerants derived from screened and unscreened calli were further tested for resistance / tolerance to P. capsici using different methods of screening viz., natural screening (keeping in infected field), screening by electrolyte leakage method and screening by artificial inoculation with culture disc of P. capsici. None of the regenerated calliclones was found to be completely resistant to the disease in natural screening. However, some of the regenerants derived from unscreened calli exhibited higher degree of tolerance to the disease revealing the possibility of exploiting somaclonal variation for Phytophthora foot rot disease screening in black pepper. The calliclones of Cheriakanyakkadan recorded greater degree of tolerance to the disease as compared to others.