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Curriculum tagged charles day

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Photoperiod: the floral initiator

Photoperiod: the floral initiator

What drives plants to flower and reproduce? In this lesson students will plant and care for soybeans under one of three different photoperiod regimes: First month: 16 hours; Second month: 14 hours; third month: 12 hours (control) 16 hours for all …

Nitrogen fixation and legumes: say what?

Nitrogen fixation and legumes: say what?

How do legumes fix nitrogen? If the atmosphere is about 80% Nitrogen (N2), but plants cannot use that form, how do they get nitrogen? In this unit, students plant and care for soybeans under one of …