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J. Brahmana
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Agriculture, Biological Sciences & Forestry Library & Information Science

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THE EFFECTS OF STEM BLEEDING DISEASE ON THE FLOWERING AND FRUIT SETTING OF COCONUT HYBRID PB 121 J. Brahmana
International Coconut Community Journal Vol 2 No 02 (1986): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v2i02.198

Abstract

Stem bleeding is one the common diseases of coconut in Indonesia. The severity of the disease varies considerably depend­ing on the cultivars, environmental. factors, and the occurence of mechanical. damage on the stem. Observation on the coconut hybrid PB 121 in the Bangun Purba estate PTP VI North Sumatra indicated that stem bleeding disease caused‑necrosis in the stem tissue but it did not kill the tree. Moreover, this disease had no negative effects in the flowering, fruiting and inflorescence formation of the coconut tree.
BUD ROT DISEASE ON PB 121 COCONUT AT BANGUN PURBA PTP VI, NORTH SUMATRA J. Brahmana; Azis Kelana
International Coconut Community Journal Vol 4 No 02 (1988): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v4i02.214

Abstract

Three‑year observations made upto 1987 on coconut hybrid PB121 (Malayan Yellow Dwarf x West Affican Tall) planted at the Bangun Purba PTP VI Estate, North Sumatra in 1977 revealed a 9.5 percent infestation by bud‑rot disease. Bud‑rot is disastrous since it kills the only growing point of the plant, and until today no remedy has been found out other than uprooting and destroying the diseased palms. Exast cause of but‑rot is not known, even­though the fungus Phytophthora palmivora is associated with the affected palms. This disease is noticed exclusively on mature palms, older than four years, and is found to spread blockwise.
Co-Authors Azis Kelana