Rubber Science

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ISSN 2454-485X (Online)
ISSN 2454-4841 (Print)

Volume 01, Number 1, (June 1988) Articles 7 - 12

- MALE STERILITY IN HEVEA BRASILIENSIS (WILLD. EX ADR. DE JUSS.) MUELL. ARG.Research Articles
- Pages 35 - 37
- C. K. Saraswathyamma, A. O. N. Panikkar, M. R. Sethuraj & J. Licy
- - Abstract
  - Keywords
  GT 1 is a male sterile clone of Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell. Arg. Hybrids of two cross combinations involving this clone as the female parent and RRIC 100 and RRII 105 as the male parents were studied. All the male flowers produced on clones established from the F1 progenies were totally devoid of fertile pollen, indicating cytoplasmic male sterility.
  
  Hevea brasiliensis, Clones, Tetrad, Pollen, Cytoplasmic male sterility
- CONTROL OF WHITE GRUB (HOLOTRICHIA SERRATA F.) ATTACKING RUBBER AT THE NURSERY STAGE IN INDIAResearch Articles
- Pages 38 - 41
- C. R. Nehru and K. Jayarathnam
- - Abstract
  - Keywords
  In a 2-year field experiment, seven insecticides viz., carbofuran 3G, phorate 10G, carbaryl 5D, HCH 10D, carbaryl 4G, phosalone 4D and carbaryl + lindane (sevidol) 4 : 4G broadcast at the time of sowing were evaluated for their relative effectiveness in controlling white grub infesting rubber seedlings in the nursery. Among the insecticides tested, phorate 10G followed by carbaryl + lindane (sevidol) 4 : 4G was proved to be very effective in managing the population of white grub in rubber nursery below the economic threshold. The treated plots recorded the lowest grub population and highest plant survival.
  
  Holotrichia serrata, Phorate 10G, Carbaryl + lindane (sevidol) 4 : 4G, Carbofunin 3G
- FIELD EVALUATION OF FUNGICIDES TO IDENTIFY A SUBSTITUTE FOR ORGANOMERCURIALS IN THE CONTROL OF BLACK STRIPE DISEASE OF RUBBER IN INDIAResearch Articles
- Pages 42 -47
- Thomson T. Edathil, Sabu P. Idicula & C. Kuruvilla Jacob
- - Abstract
  - Keywords
  Investigations were carried out to identify an effective and alternative fungicide for organo-mercurial fungicides in the control of black stripe disease of rubber. The high human toxicity of organo-mercurial fungicides and their possible withdrawal from the market necessitate the search for a substitute. Both captafol (Foltaf) and mancozeb (Dithane M-45) were found to be effective for the control of this disease. On economic consideration, Dithane M- 45 at 0.75% ai appears better.
  
  Bark rot incidence, Disease index, Feeler trial, Fungicides, Human toxicity, Phytophthora spp., Plasticity, Plasticity retention index
- ROLE OF INJECTION WOUNDS ON BARK ROT DISEASE INCIDENCE IN HEVEA BRASILIENSISShort Scientific Reports
- Pages 48 -50
- L. Thankamma
- - Abstract
  - Keywords
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- OCCURRENCE OF COLLETOTRICHUM LEAF SPOT DISEASE OF RUBBER IN INDIAShort Scientific Reports
- Pages 50 -52
- V.K Rajalakshmy & Annakutty Joseph
- - Abstract
  - Keywords
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- EVALUATION OF FOUR HERBICIDES FOR CONTROL OF BROAD LEAF WEEDS IN RUBBERShort Scientific Reports
- Pages 53 – 56
- Jacob Pothen, Jacob Mani, Mathew M. & Punnoose K.I.
- - Abstract
  - Keywords
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Digital library

Volume 01, Number 1, (June 1988) Articles 7 - 12