Abstract
The influence of light intensity and daylength on four short-day species of Chenopodium was analysed. The following species were tested: Ch. ficifolium, Ch. glaucum, Ch. rubrum and Ch. hybridum. Under short day, generative initiation was accelerated, the abundance of flowering, and growth and leaf differentiation processes were reduced. Under light of low intensity, the rhythm of development of the plants growing under long day is similar to that under short day. The development of axillary buds indicates a decrease in the intensity of vegetative differentiation and elongation growth, with an enhancement of the generative tonus; the buds in the axils of the highest growing leaves form directly inflorescences without preceding leaf differentiation. Inversion of the shape of leaves on lateral shoots was noted.
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