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Effect of phosphorus and temperature on the growth and nitrogenase activity in Azolla-Anabaena association

Effect of phosphorus and temperature on the growth and nitrogenase activity in Azolla-Anabaena association

Soil Science and Plant Nutrition 35(2): 217-226

The effects of the light and O2 on the nitrogenase activity in the Azolla-Anabaena association were studied using Azolla imbricata and A.japonica grown in a growth chamber under artificial light. Acetylene reduction activity (ARA) was strongly enhanced by a high light intensity up to 4200 lx. Under dark conditions, ARA was much lower though not suppressed completely. In response to O2 concentration in the atmosphere the activity was maximum at about 4% Po2 in the light.

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Accession: 001812265

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DOI: 10.1080/00380768.1989.10434754

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