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Day Lenght and Flowering in the Solanum Aviculare Group

Tipo de material: TextoTextoSeries ; New Zealand Journal of Botany , 6, p.221-225, 1968Trabajos contenidos:
  • Baylis G., T.S
Tema(s): Recursos en línea: Resumen: Most members of the Solanum aviculare group flowered only in long days. but there were day-neutral races in S. simile and S. capsiciforme. S. aviculare consisted of ecotypes in which photoperiod was adapted to latitude and temperature. A race from 6°S could flower normally in 8-hour days, and more southerly races required increasing photoperiods; but day lengths sufficing to produce flowers in warmer months produced abortive inflorescences in cooler ones. In S. laciniatum no latitudinal change in critical photoperiod was apparent.
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Most members of the Solanum aviculare group flowered only in long days. but there were day-neutral races in S. simile and S. capsiciforme. S. aviculare consisted of ecotypes in which photoperiod was adapted to latitude and temperature. A race from 6°S could flower normally in 8-hour days, and more southerly races required increasing photoperiods; but day lengths sufficing to produce flowers in warmer months produced abortive inflorescences in cooler ones. In S. laciniatum no latitudinal change in critical photoperiod was apparent.

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