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Auxin is required for fruit growth and development and delays fruit senescence. When seeds are removed from strawberries, fruit growth is stopped; exogenous auxin stimulates the growth in fruits with seeds removed. For fruit with unfertilized seeds, exogenous auxin results in parthenocarpy ("virgin-fruit" growth).
7: Development of fruit 71: Fruit size up to 10 mm; fruit fall after flowering 72: Fruit size up to 20 mm 73: Second fruit fall 74: Fruit diameter up to 40 mm; fruit erect (T-stage: underside of fruit and stalk forming a T) 75: Fruit about half final size 76: Fruit about 60% final size 77: Fruit about 70% final size 78: Fruit about 80% final ...
Principal growth stage 7: Development of fruit 71: Receptacle protruding from sepal whorl 73: Seeds clearly visible on receptacle tissue Principal growth stage 8: Maturity of fruit 81: Beginning of ripening: most fruits white in colour 85: First fruits have cultivar-specific colour 87: Main harvest: more fruits coloured 89
7: Development of fruit 71: Beginning of fruit growth: first fruits visible at raceme base 72: 20% of fruits formed 73: 30% of fruits formed 74: 40% of fruits formed 75: 50% of fruits formed 76: 60% of fruits formed 77: 70% of fruits formed 78: 80% of fruits formed 79: 90% of fruits formed 8: Maturity of fruit and seed 81
Plant hormones control all aspects of plant growth and development, including embryogenesis, [1] the regulation of organ size, pathogen defense, [2] [3] stress tolerance [4] [5] and reproductive development. [6] Unlike in animals (in which hormone production is restricted to specialized glands) each plant cell is capable of producing hormones.
Principal growth stage 7: Development of fruit 71: Ovary growing; fruit fall after flowering 72: Green ovary surrounded by dying sepal crown, sepals beginning to fall 73: Second fruit fall 75: Fruit about half final size 76: Fruit about 60% of final size 77: Fruit about 70% of final size 78: Fruit about 80% of final size 79: Fruit about 90% of ...
An example of multiple fruits are the fig, mulberry, and the pineapple. [1] Simple fruits are formed from a single ovary and may contain one or many seeds. They can be either fleshy or dry. In fleshy fruit, during development, the pericarp and other accessory structures become the fleshy portion of the fruit. [2]
In some climates, normally-seeded pear cultivars produce mainly seedless fruit for lack of pollination. [8] When sprayed on flowers, any of the plant hormones gibberellin, auxin and cytokinin could stimulate the development of parthenocarpic fruit. That is termed artificial parthenocarpy. Plant hormones are seldom used commercially to produce ...