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S. H. Wittwer has written:

'Growth hormone production during sexual reproduction of higher plants' -- subject(s): Plants, Growth (Plants), Plant hormones, Reproduction

'Food, climate, and carbon dioxide' -- subject(s): Crops, Crops and climate, Climatic changes, Effect of atmospheric carbon dioxide on, Global warming

'Greenhouse tomatoes, lettuce, and cucumbers' -- subject(s): Greenhouse management, Tomatoes, Cucumbers, Lettuce

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11y ago

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