Photoperiodism the biological calendar

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

Effects of photoperiodism of the chlorophyll content and leaf ultrastructure in the winged bean Psophocarpus tetragonolobus(L.) DC. af 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 af Vergara, B. S., Chang, T.T

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

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

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

Insect photoperiodism af Beck, Stanley D.

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

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