layer is constructed so as to prevent the tree from "bleeding to death'' when the leaves detach from the tree.
Among the growth regulators used to promote thinning, Ethephon, which releases ethylene when in contact with plant tissue, thus promoting abscission
, has been considered to be more efficient compared to NAA (DOMINGUES et al.
The attenuated base and well-developed abscission
zone of the wild achenes facilitate disarticulation as soon as the fruits are ripe, and this minimizes the period that they are available for predation by birds.
When fully grown, an abscission
layer is formed between the gemmiphore and gemma.
Interaction of euonymus scale (Homoptera: Diaspididae) feeding damage and severe water stress on leaf abscission
and growth of Euonymus fortunei.
Plant growth regulator control many physiological processes including cell division, root initiation, apical dominance, leave senescence, leave abscission
, vegetative growth, and flowering .
We located 15 trees of each species within each site and randomly chose 15 leaves from each plant to calculate rates of herbivory and percentage of area consumed by herbivores at the end of the growing season prior to leaf abscission
We will focus on the function of the midbody ring (MR), a protein-dense organelle that forms at the site of abscission
Reis & Souza (1998) observed that the continuous sucking of sap by nymphs causes sap depletion and premature abscission
of the apical leaves of coffee plants, resulting in reduced coffee production if the pest is not controlled.
beta]-1,4- glucanase participates in processes such as vegetative growth, fruit ripening and the abscission
of plant organs, [31,9] supported the idea that the tomato [beta]-1,4 glucanase responds to pathogen infection and supports a relationship between plant defense responses and fruit ripening.
Depending on the species, petal senescence is visibly shown by wilting or abscission
or even wilting followed by abscission
Direct injury to citrus by ACP results from phloem feeding on emerging foliage (flush), which causes permanent distortion or even abscission
of new shoots with heavy infestation (Michaud 2004; Hall & Albrigo 2007).