abscission

NOUN
  1. shedding of flowers and leaves and fruit following formation of scar tissue in a plant
  2. the act of cutting something off
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How To Use abscission In A Sentence

  • The roof abscission layer is the biggest security hidden danger in bolting support tunnel.
  • They produce numerous biological effects including promotion of leaf senescence and abscission, stomatal closure, inhibition of root growth, and germination of non-dormant seeds.
  • Ethylene is involved in many biological processes, like fruit ripening, flower and leaf abscission, senescence, many stress acclimations, and growth.
  • High temperature conditions commonly cause flower abscission and seed abortion because of pollination failure.
  • Indeed, shading the leaves reduces photosynthesis and carbohydrate supply to the developing inflorescences, causing flower abscission and lower yields.
  • While chestnuts and horse-chestnuts are flat on one side and gently rounded on the other, with a flattened, round abscission scar at the top and a pointed tip at the bottom, the smaller buckeyes are more uniformly spherical, albeit irregular in shape.
  • In the absence of water deficit, leaf water potential changes very little, or not at all, during senescence in species where the life span of leaves is terminated by abscission, as in soybeans and other dicots.
  • The presence and balance of plant hormones have been shown to affect abscission of leaves, flowers, and immature and mature fruit.
  • Less coherent expression was detected in the endodermis of the root elongation zone, in the stem of the young inflorescence, pollen tubes, base of axillary buds, ovules, chalazal endosperm, and fruit abscission zone.
  • By contrast, drought hastens ripening and seed maturation for tomato and reduces fruit abscission for lychee trees.
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