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- Predict whether flowering in a short day plant with a minimum critical length of 14 hours would be expected to occur in the following situations. The plant is exposed to 15 hours of daylight and 9 hours of darkness uninterrupted. The plant is exposed to 9 hours of daylight and 15 hours of darkness. The plant is exposed to 9 hours of daylight and 15 hours of darkness, with 10 minutes exposure to red light in the middle of the night.Plants provide a wide range of benefits to both the ecosystems in which they live, as well as to humans. Identify and describe 1) a benefit to the ecosystem, and 2) a benefit to humans specifically (1-2 sentence per function). Be sure to include information regarding why these functions are important or what impact they have.2,4-D and 2,4,5-T are examples of hormonal-based herbicides. Name the phytohormone behind this herbicides and how it works in suppressing weeds.
- Discuss the two (2) important phases of growth of the Sugar Cane - Vegetative Stage; and the Maturation and Ripening StageCompare and contrast the characteristics of a somatic embryo and a shoot grown directly from a leaf explant. Explain the differences between somatic and androgenic embryos.Watch the suggested videos for Plants Response to Stimuli. a. GeotropismGeotropism Experiment (2:48 minutes)https://www.youtube.com/watch?v=AEo5UsPeB5gb. PhototropismPhototropism Experiment (2:16 minutes)https://www.youtube.com/watch?v=WZ1NRP3OF5w a. For each experimental set up (geotropism and phototropism), identify the dependent and independent variables that have contributed to how plants responded to the stimuli.
- To explain the increase in mass of the light-grown plants, identify one inorganic source of new plant mass and connect it to the cellular process underlying the increase in mass.Discuss the effect of environmental conditions on the Maturation and Ripening Stage of sugar caneExplain the importance of plant hormones.
- Explain how varying amounts of light and darkness induce flowering.Which of the following statements is false? a. Auxin and gibberellin promote stem elongation b. Cytokinin promotes cell division in shoot tips c. Abscisic acid promotes water loss and dormancy d. Ethylene promotes fruit ripening and abscission.The summer is not optimal for grape growing and you're searching in your memory for something regarding plant hormones. Explain 2 ways you could utilize plant hormones (choose from auxin, ethylene, cytokinin, gibberellin, abscisic acid, salicylic acid, jasonic acid) to compensate for a problem during growing. For each way: