AEBI 421 Lecture Notes - Lecture 1: Postharvest, Soil Fertility, Quality Management
27 Jan 2016
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Characteristics: smaller fields (except for large fruit orchards, more labour intensive operations, relatively higher value per unit produced. Better understanding: propagation, environmental effects (light, temperature, rh, co2, water, minerals, pests, diseases, weeds, manipulate the environment to suit the plant; how, production systems & quality management, post-harvest physiology (minimizing spoilage, genetics. Warm with wet & dry seasons (uncertainty: water stress in dry season, heavy rain in wet season (affects soil fertility, wind (including hurricanes) Excessive heat and high humidity affects labour productivity & storage of produce. Traditional production systems: large, monoculture cultivation (plantation) Small, mixed cultivation (small farmer) low tech. Can have a long juvenile period and come into fruit production many years later. Successful seed use: genetically correct, healthy, vigorous, manipulating seed dormancy, proper environment during early growth. Slow respiration and other metabolic (life) processes without embryo injury. A lot of tropical species cannot be stored. Viable for only a few days or months (can"t really store these).
