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Fruit plants may be propagated directly from seeds or vegetatively. Although seed propagation of fruit plants is the easiest, generally it is not the best, because it scarcely allows for maintenance of the characters of the original plant. In addition, plants grown directly from seeds are slow to come into production. Vegetative propagation allows for the multiplication of quick bearing plants ...

SUBJECT: ecussonnage; pepiniere; greffage; injerto; porte greffe

POSTED TO: First Regional Workshop on Tropical Fruit Crops, Roseau (Dominica), 17-22 Feb. 1991 - Passion Fruit, Avocado and Citrus [0253-4746]

Carambola, an exotic fruit still unknown to a large portion of the world's population has the necessary characteristics to become one of the alternative crops in the diversification plans of several Caribbean countries. Only a few countries can be considered commercial producers of carambola. There is therefore a deficit in the supply of this fruit in the international market. Prices for fresh ...

SUBJECT: ecussonnage; jugo de frutas; aplicacion de abonos; classement; control de plagas

The Passiflora genus contains about 400 species but only a few have developed commercial interest for fresh consumption, industrialization or ornamental purposes. The passion fruit is the species more commercially developed. Only a few of the Passiflora sp. are well known in the Caribbean. Of these the most popular are the yellow passion fruit, Passiflora edulis f. flavicarpa, and the giant gr ...

SUBJECT: polinizacion; caribe; passiflora edulis; hybride; caraibes

POSTED TO: First Regional Workshop on Tropical Fruit Crops (IICA) [0253-4746]

There are 18 to 20 varieties of grapefruit of which the Duncan, Foster Pernambuco, Marsh, Ruby and Glen Red can be found in the Caribbean. The marsh seedless is the best known and grown commercially. There are three principal varieties of lime: Bear seedless; Mexican and Tahiti. Deals with the grapefruit and lime orchard in detail. Outlines site selection, drainage, use of windbreaks, soil typ ...

SUBJECT: citrus aurantifolia; rompeviento; abonos nitrogenados; control de enfermedades; control de plagas

POSTED TO: First Regional Workshop on Tropical Fruit Crops (IICA) [0253-4746]

The sweet potato moth borer, Megastes grandalis Guen., is the major pest of sweet potato in Trinidad and Tobago. Evaluated the susceptibility of 15 selected sweet potato cultivars to damage by the borer and tried to determine possible reasons for any observed differences among the cultivars. The selections included 10 which are apparently resistant and 2 with features which are believed to con ...

SUBJECT: trinite et tobago; insecte depredateur des tiges; resistencia a las plagas; ipomoea batatas; trinidad y tobago

Population of palm weevils Rhynchophorus palmarum L. are segregated into those which demonstrate a mechanism of resistance to certain nematodes and those which do not. Since the mechanism is genetically inherited, susceptible populations can be eliminated by the action of some entomopathogenic organisms whereas resistant strains will not. When this relates to vectors for the red ring nematode, ...

SUBJECT: nematodos de insectos; nematode entomopathogene; rhadinaphelenchus cocophilus; rhynchophorus palmarum; cocos nucifera

POSTED TO: Journal of the Agricultural Society of Trinidad and Tobago (Trinidad and Tobago)

A shift from small-scale production of fruits to large monocultural systems is one mechanism which allows an insect species to achieve major pest status. To prevent this it must be ensured that adequate preventative pest management programmes are developed and implemented as one component of any scheme for increased fruit production. Highlights and reviews major pests of papaya, pineapple and ...

SUBJECT: toxotrypana curvicauda; selenothrips; caribe; ananas comosus; acarien nuisible

POSTED TO: Second Regional Workshop on Tropical Fruit Crops (IICA) [0253-4746]

Spodoptera frugiperda (J.E. Smith), the fall army-worm, is the major pest of corn in Trinidad. Attempts were made to carry out observations on the life cycle, parasitoids, predators, population fluctuation and seasonal distribution (by use of pheromone traps) and also to identify insecticides that may be used for control of the pest.

SUBJECT: predateur; trinite et tobago; parasitoide; zea mays; trichogramma

POSTED TO: Journal of the Agricultural Society of Trinidad and Tobago (Trinidad and Tobago)

Investigations to determine a suitable medium for the in vitro propagation of Mussaenda revealed that of the macro-element formulations, MS appeared to be the most suitable for the growth and multiplication of shoots. 6-BAP enhanced the elongation of stage I buds and promoted shoot proliferation. Cytokinin in stage I may be inessential since shoots formed in primary medium containing GA3 produ ...

SUBJECT: medio de cultivo; racine; mussaenda; bourgeon; quinetina

Examines the trends in the food supply between 1980-1990 according to the following variables: dependence on imported food, sufficiency, sustainability, stability and the equity of the food supply. Results show that although there was a high level of sufficiency of food supply there was a decreasing trend in the level of food security. This was reflected in a critical dependence on foreign foo ...

SUBJECT: seguridad alimentaria; securite alimentaire; trinite et tobago; necesidades de informacion; besoin d'information