Botany Chapter 11

Botany Chapter 11 - Chapter 11: Growth Plant growth...

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1 Chapter 11: Growth Plant growth ± Increase # of cells and/or size of cells ± Determinate or indeterminate ± ± ± Development of organs Temperature and Growth ± ± Lower night temperatures often result in higher sugar content in plants and may also produce greater root growth. ± Growth of many field crops is roughly proportional to prevailing temperatures.
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2 ± Dormancy - Period of growth inactivity in seeds, buds, bulbs, and other plant organs even when environmental requirements are met. ± Quiescence - Sate in which a seed cannot germinate unless environmental conditions normally required for growth are present. Nutrients and Vitamins ± ± Furnish the elements and energy to produce organic molecules. ± ± Mostly organic molecules ± Participate in catalyzed reactions, mostly by functioning as an electron acceptor or donor. ± Most made by plants Hormones ± Chemical compounds that influence growth and development ± Production dictated by genes ± Some vitamins and hormones are difficult to distinguish ± Several types ± ± Bind specific hormones ± Transmit signal ±
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3 ± Cause cell growth
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Botany Chapter 11 - Chapter 11: Growth Plant growth...

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