CocoaThis text covers all aspects of cocoa production. Higher prices for cocoa have led to much new knowledge about the plant and changes to its methods of production. These are discussed, along with new problems that have occurred and the fresh research projects that have been needed. |
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Page 178
... leaf sampling it was found that the characteristic colour change of the petiole can be used to estimate the age of young leaves and to distinguish leaves of different flushes . These findings have considerably improved precision in ...
... leaf sampling it was found that the characteristic colour change of the petiole can be used to estimate the age of young leaves and to distinguish leaves of different flushes . These findings have considerably improved precision in ...
Page 271
... leaves and young stem tissues are more susceptible to infection than old leaves and mature stem tissue . Sporulation will occur on the leaf scar and the fungus can advance up the stem to the petiole of another leaf . The symptoms on mature ...
... leaves and young stem tissues are more susceptible to infection than old leaves and mature stem tissue . Sporulation will occur on the leaf scar and the fungus can advance up the stem to the petiole of another leaf . The symptoms on mature ...
Page 600
... leaves showing prominent dark red veinlets with considerable distortion , leaf very narrow in proportion to length , margin often wavy and leaf sometimes sickle - shaped with small chlorotic patches in distinct row on each side of ...
... leaves showing prominent dark red veinlets with considerable distortion , leaf very narrow in proportion to length , margin often wavy and leaf sometimes sickle - shaped with small chlorotic patches in distinct row on each side of ...
Contents
Botany types and populations H Toxopeus | 11 |
Environment G A R Wood | 38 |
Planting material H Toxopeus | 80 |
Copyright | |
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acid Agric Amazon Amelonado annum Anon application areas attack Bahia branches Brazil broom budding Bull Cameroon canker canopy capsids caused cent chupons clear-felling cocoa beans cocoa farms Cocoa Growers cocoa plants Cocoa Res cocoa swollen shoot Coconuts Colombia Conf Costa Rica Criollo crop cultivars damage dieback disease of cocoa dry season Ecuador effect Entwistle farmers fermentation fertiliser flavour forest fungicide fungus Ghana growth harvesting herbicides Itabuna Ivory Coast jorquette labour usage leaf losses Malaysia man-days mature cocoa mealybugs method mirids mistletoe Nigeria nursery nutrients old cocoa trees palmivora Papua New Guinea pathogen Peninsular Malaysia pesticides pests Phytophthora palmivora Phytophthora pod rot plantation Proc production pruning rainfall reduced rehabilitation removal replanting root Sabah seed seedlings shade trees soil SOURCE species spores spraying stem symptoms Table temperature Theobroma cacao tissue tonnes trials Trin Trinidad Turrialba vascular-streak dieback weed control West Africa wilt yield young cocoa