propagule


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propagule

[′präp·ə‚gyül]
(botany)
A reproductive structure of brown algae.
A propagable shoot.
References in periodicals archive ?
Among the main limitations of roots formation we found the ontogenetic age of propagules, determining factor in the formation of adventitious roots, where, in general, propagules with a higher degree of juvenility tend to have higher rooting and vigor (XAVIER et al.
Sediment samples were collected at random from three locations in the rhizosphere of each propagule.
Correlation analysis (Table 5), focusing only on the strong positive relationships, indicated that propagule size had a significant, weak, positive correlation with emergence (r = 0.
For many crops and their wild progenitors, propagule characters are an excellent index or gauge of the relative state of domestication, and this is the case in Cannabis (Small, 1975a).
However, the propagules and seedlings used in reforestation are not necessarily free from disease and pests.
We do not believe this means beavers are not affected by the problems small populations face, but these examples do represent instances of extraordinarily successful biological invasions, initiated with a very low propagule pressure.
Soil infectivity for the areas was evaluated according to the most probable number technique (MPN) of AMF infective propagules, described by Feldmann and Idczak (1992).
propagule pressure), and warmer microclimates that are favorable to pathogens and vectors (8).
For its calculation, a correction factor was used for the colony count, based on the probability that more than one viable propagule could have passed through the same hole and impacted the culture medium.
At this stage, success of invasions is associated with propagule pressure (number of invaders and invasion attempts; Kolar & Lodge 2001, Colautti et al.