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Dwarfing is a process in which a breed of animals or cultivar of plants is changed to become significantly smaller than standard members of their species. The effect can be induced through human intervention or non-human processes, and can include genetic, nutritional or hormonal means.
Physostigma venenosum, the Calabar bean or ordeal bean, is a leguminous plant, Endemic to tropical Africa, with a seed poisonous to humans.It derives the first part of its scientific name from a curious beak-like appendage at the end of the stigma, in the centre of the flower; this appendage, though solid, was supposed to be hollow (hence the name from φῦσα, a bladder, and stigma).
In other words, A. florea do not change the precision of the waggle dance to indicate a goal is a nest site or food patch, unlike A. mellifera, which do change precision when conveying information about food patches specifically. This suggests that A. florea do not prioritize nesting site nor food patch information by changing the precision of ...
One of the outcomes of plant reproduction is the generation of seeds, spores, and fruits [13] that allow plants to move to new locations or new habitats. [14] Plants do not have nervous systems or any will for their actions. Even so, scientists are able to observe mechanisms that help their offspring thrive as they grow.
Plant defense against herbivory or host-plant resistance is a range of adaptations evolved by plants which improve their survival and reproduction by reducing the impact of herbivores. Many plants produce secondary metabolites , known as allelochemicals , that influence the behavior, growth, or survival of herbivores.
The black bean aphid is a major pest of sugar beet, bean, and celery crops, with large numbers of aphids cause stunting of the plants. Beans suffer damage to flowers and pods which may not develop properly. Early-sown crops may avoid significant damage if they have already flowered before the number of aphids builds up in the spring. [9]
Other seed components include the endosperm, which is tissue rich in nutrients that will help support the growing plant embryo, and the seed coat, which is a protective outer covering. The first cell division of a zygote is asymmetric , resulting in an embryo with one small cell (the apical cell) and one large cell (the basal cell). [ 22 ]
Phaseolus coccineus, known as runner bean, [2] scarlet runner bean, [2] or multiflora bean, [2] is a plant in the legume family, Fabaceae. Another common name is butter bean, [3] [4] [5] which, however, can also refer to the lima bean, a different species. It is grown both as a food plant and an ornamental plant.