26 Apr 2024
Pomelo

Influence of Water Stress in Autumn on Flower Induction and Fruiting in Young Pomelo Trees

Young pomelo trees grown in concrete pots in a plastic house were water-stressed for different durations from early September to late December, 1990. The cyclical stress treatments were established by withholding water from the potted trees until the leaf water potentials reached -24 to -28 bars (7 to 13 days after irrigation) at which time they were re-irrigated. Maximum day and minimum night temperatures in the plastic house were adjusted to about 25° and 10°C, respectively, from early December, 1990, to early April of the following year.

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25 May 2022
Orange Blossom

Influence of Temperature and Photoperiod on Flower Induction and Inflorescence Development in Sweet Orange.

At low temperature (15° C.day/5° C.night) flowering of sweet orange cuttings was not photoperiodically controlled, occurring at 16-, 12-, and 8-hour photoperiods. When plants were transferred, after varying periods of low temperature (15°/8° C.) to warm conditions (30°/25° C.), growth of the buds commenced within a few days of transfer. Flowering response to length of the cold treatment appeared to be quantitative.

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