dormancy


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dormancy

(dor′măn-sē)
Temporary inactivity; e.g., a state of transiently reduced metabolic activity.
dormant, adjective

dormancy

a state in which seeds and other structures (such as underground stems) reduce their metabolic activities to a minimum level during unfavourable conditions (e.g. low temperature, drought) so as to survive until conditions improve. In fungal spores dormancy can be EXOGENOUS, requiring an external stimulus (e.g. presence of nutrients) for germination; or ENDOGENOUS, where dormancy is controlled by an innate property of the spore and is unaffected by the ambient environment when in this state. See GERMINATION for events that occur when seed dormancy is broken.
References in periodicals archive ?
The test consisted of treatments without and with seed dormancy break, which was obtained through seed immersion for 60 seconds in water heated at 100[degrees]C (Smiderle, Mourao Junior, & Sousa 2005).
Scarification is a largely employed method because it works changing the nature and level of the promoter and inhibitor hormones involved on the processes of seed dormancy and germination (CAMPANA et al.
The understanding of the dormancy dynamics of a particular commercial cultivar in its environment is important because it allows a planning that makes the application of diverse cultural practices such as pruning, thinning, fertilization and application of products for the breakdown of dormancy more effective.
Dormancy in mango plants is caused by external or internal factors and farmers must take care of food requirements of plants, water application, counter diseases and pests and save plants from frost.
It was reported that dormant seeds which require chilling dry storage after ripening and light as a germination stimulator are often treated with GA3 to overcome their dormancy [8,11].
This is partly because seeds shed in the autumn are mostly dormant and require a period of cold-stratification satisfied under snow before they germinate in spring (see below) and partly due to the ability of the seeds to re-enter dormancy (in the case of PD) if they did not germinate.
The transfer of unexercised gift certificates, gift cards, and merchandise credits potentially allows the transferor to avoid having these items become escheatable, provided that they are transferred prior to the expiration of the dormancy period.
In third-stage dormancy, as the cold temperatures intensify, the fluid remaining in cells turns into antifreeze, thus ensuring strong resistance to cold damage.
Generally, the seeds tend to be dormant in low temperature and long photoperiod, but sometimes the low temperature and high moisture would break dormancy and promote the seed sprouting (Argel et al.
As a contribution to the Recovery Plan for Narcissus alcaracensis, we investigated several traits of seed dormancy and germination ecology.
The research was carried out to investigate best method for breaking seed dormancy of sunflower with different treatments in darkness and light.