Describe the chief characteristics of two corp in detail
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Crop Characteristics
Crop characteristics which define potential yields include physiological and phenological traits. The physical environment and management can influence these characteristics. However, the response of the crop and thus its potential yield under optimum conditions is genetically determined. Crop characteristics vary between varieties. Cocoa varieties are often classified into three groups: Criollo, Trinitario, and Forastero. The Criollo varieties have been praised for their fine flavor; however, they lack vigor, yield poorly, and are reported to be extremely susceptible to pests and diseases. Forastero varieties are much more vigorous and hardy than Criollos. Trinitario is generally assumed to have originated as a cross between Criollo and Forastero, and many of its features are intermediate between the two. Owing to their preferred crop characteristics leading to high productivity, Forastero varieties now account for about 80% of global production. These include both the Amazon and the Amelonado varieties, from which most hybrids also originate (Toxopeus, 1985a, reviewed in Almeida and Valle, 2007). Some examples of important characteristics which differ between varieties are the canopy size and structure, harvest index, radiation tolerance, and leaf chlorophyll content (Hutcheon, 1976; Okali and Owusu, 1975; Yapp and Hadley, 1991). Furthermore, susceptibility to various pests and diseases differs among varieties (Adejumo, 2005; CacaoNet, 2012; Thresh and Owusu, 1986).
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