Photosynthetic characteristics of field-grown cotton (Gossypium hirsutum L.) leaves were determined at several insertion levels within the canopy during the growing season. Single-leaf measurements of net photosynthesis (Pn), stomatal conductance to CO2 (g~ "CO2), substomatal CO2, leaf area expansio
Ecdysteroid biosynthesis during the ontogeny of spinach leaves
β Scribed by Robert J. Grebenok; John H. Adler
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 855 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0031-9422
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In the long-day plant Spinacia oleracea changes in the pool size of pyridine nucleotides have been followed under different photoperiodic conditions. In short days (vegetative state), the dark and light phases of the cycle are characterized by specific reciprocal changes in NAD and NADP pool sizes.
W h e n shoots o f y o u n g plants o f h e m p (Cannabis sativa L.) a n d spinach (Spinacea oleracea L.) were cultured as cuttings and allowed to regenerate adventitious roots, ca, 8 0 -8 5 % became female (formed pistillate flowers) regardless of whether the leaves were left on the plants or were