Share this entry

Share this page

protandrous

Saltos de línea: pro|tan¦drous
Pronunciación: /prəʊˈtandrəs
 
/

Definición de protandrous en inglés:

adjetivo

Botany & Zoology
(Of a hermaphrodite flower or animal) having the male reproductive organs come to maturity before the female. The opposite of protogynous.
Example sentences
  • It is a wind-pollinated species, with hermaphroditic protandrous flowers (the first two days as male and three last days as female).
  • In many protandrous spiders, adult males cohabit with juvenile females nearing sexual maturity, and this may provide an index of expected mate availability for females.
  • Perfect flowers are protandrous, hence the stigmas open after anthesis, which reduces the probability of autogamous self-pollination.

Derivados

protandry

1
sustantivo
Example sentences
  • Under natural photoperiodic conditions protandry in hermaphrodite disc flowers of sunflower is determined by the different elongation rates of the style and filaments.
  • The temporal aspects of stigma receptivity and pollen longevity were investigated in relation to protandry (the occurrence of anther dehiscence prior to stigma receptivity) and breeding system.
  • Predictions from the above hypotheses are not mutually exclusive, and associations between protandry and sexual dimorphism may be promoted by complex interactions between the suggested mechanisms acting in concert.

Definición de protandrous en:

Share this entry

Share this page

 

¿Qué te llama la atención de esta palabra o frase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Obtenga más de Oxford Dictionaries

Suscribirse para eliminar anuncios y acceder a los recursos premium

Palabra del día raconteur
Pronunciación: ˌrakɒnˈtəː
noun
a person who tells anecdotes skilfully and amusingly…