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Registro Completo |
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
25/09/1996 |
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Data da última atualização: |
25/09/1996 |
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Autoria: |
GEORGE, M. V.; SUKUMARAN, A. S.; THOMMEN, K. J. |
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Título: |
Crop loss due to root (wilt) and leaf rot diseases and oryctes infestation of coconut in the disease affected areas in Kerala, South India. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
Indian Coconut Journal, v.15, n.9, p.3-9, jan. 1985. |
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Idioma: |
Inglês |
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Conteúdo: |
Root (wilt) and leaf rot are the major diseases seriously affecting the yield of coconut in Central and Southern Kerala. Of the pests Oryctes rhinoceros L. is the most important, attacking the tender leaves and spathes. The root (wilt) disease affected areas on the west coast of India consit of seven districts of Kerala state viz. Ernakulam, Idikki, Kottayam, Alleppey and Quilon districts in full and part of Trichur and Trivandrum districts where a survey was conducted using a multistage sampling procedure during 1971-76 to estimate the total production and the loss in coconut yield due to incidence of root (wilt) and leaf rot and Orycles infestations. Among the 7 districts surveyed the total annual production of nuts was maximum in Alleppey district (406 million nuts). Ernakulam, Kottayam and Quilon districts produced annually 357 million, 337 million and 331 million nuts respectively. The average yield per palm was found to be very low in the severely diseases affected districts (Alleppey 31 nuts, Kottayam 32 nuts and Idikki 35 nuts). The average yield of a healthy palm free from disease and Oryctes insfestation was also high in Trichur (61 nuts) and Ernakulam (60 nuts) districts. The loss in yield was estimated to be about 75% for tress in the advanced stages of the disease and 25 to 50% in the early stages. The loss due to Oryctes infestation was found to vary from 1 to 6 nuts per palm in different districts. The loss of nuts due to disease and pest etc... |
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Palavras-Chave: |
Coconut; Coqueiro. |
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Thesagro: |
Cocos Nucifera. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02044naa a2200181 a 4500
001 1355178
005 1996-09-25
008 1985 bl uuuu u00u1 u #d
100 1 $aGEORGE, M. V.
245 $aCrop loss due to root (wilt) and leaf rot diseases and oryctes infestation of coconut in the disease affected areas in Kerala, South India.
260 $c1985
520 $aRoot (wilt) and leaf rot are the major diseases seriously affecting the yield of coconut in Central and Southern Kerala. Of the pests Oryctes rhinoceros L. is the most important, attacking the tender leaves and spathes. The root (wilt) disease affected areas on the west coast of India consit of seven districts of Kerala state viz. Ernakulam, Idikki, Kottayam, Alleppey and Quilon districts in full and part of Trichur and Trivandrum districts where a survey was conducted using a multistage sampling procedure during 1971-76 to estimate the total production and the loss in coconut yield due to incidence of root (wilt) and leaf rot and Orycles infestations. Among the 7 districts surveyed the total annual production of nuts was maximum in Alleppey district (406 million nuts). Ernakulam, Kottayam and Quilon districts produced annually 357 million, 337 million and 331 million nuts respectively. The average yield per palm was found to be very low in the severely diseases affected districts (Alleppey 31 nuts, Kottayam 32 nuts and Idikki 35 nuts). The average yield of a healthy palm free from disease and Oryctes insfestation was also high in Trichur (61 nuts) and Ernakulam (60 nuts) districts. The loss in yield was estimated to be about 75% for tress in the advanced stages of the disease and 25 to 50% in the early stages. The loss due to Oryctes infestation was found to vary from 1 to 6 nuts per palm in different districts. The loss of nuts due to disease and pest etc...
650 $aCocos Nucifera
653 $aCoconut
653 $aCoqueiro
700 1 $aSUKUMARAN, A. S.
700 1 $aTHOMMEN, K. J.
773 $tIndian Coconut Journal$gv.15, n.9, p.3-9, jan. 1985.
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Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
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