Photoperiodism the biological calendar

The flowering response of the rice plant to photoperiod a review of the literature por Vergara, B. S.

Effects of photoperiodism of the chlorophyll content and leaf ultrastructure in the winged bean Psophocarpus tetragonolobus(L.) DC. por Tabbada, Reynaldo A., Flores, Ma. Agnes A.

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The flowering response of the rice plant to photoperiod a review of the literature por Vergara, B. S., Chang, T.T

The flowering response of the rice plant to photoperiod a review of the literature por Vergara, B. S.

The flowering response of the rice plant to photoperiod a review of the literature por Vergara, B. S.

The flowering response of the rice plant to photoperiod a review of the literature por Vergara, B. S.

Insect photoperiodism por Beck, Stanley D.

Animal photoperiodism; relationship of daylength to animal growth, development, and behavior. por Beck, Stanley D.

Effect of temperature and photoperiod on ovarian recrudescence and maintenance of vitellogenic oocytes in the catfish, Clairias macrocephalus Gunther por Pacoli, Cecily S. Quebral