how is the balance between GA and ABA important in the dormancy of seeds?
Homework Answers
GA = Gibberellic acid
It is a growth-promoting phytohormone identified by Kurosawa
It is a terpenoid derivative.
GA is a promoter of seed germination i.e. inhibitor of seed
dormancy. GA promotes Seed germination by activating hydrolytic
enzymes such as alpha-amylase and mobilize the reserve food
materials. This induces the seed germination.
ABA = Abscisic acid
It is a growth-inhibiting phytohormone identified by Stevenick,
Wareing, and Addicot.
It is a Carotenoid derivative.
ABA is a promoter of seed dormancy i.e. inhibitor of seed
germination. ABA inhibits the overall growth and seed germination.
It induces seed dormancy in response to unfavorable environmental
conditions.
GA acts antagonistically to ABA. A
fine balance between the ABA and GA levels determine the fate of
seed (Germination/dormancy) in response to environmental
conditions.
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how
is the balance between GA and ABA important in the dormancy of
seeds?
2. O wiese medisins applies to IPOTHUCA SCUS! 3. How is seed mucilage 'produced and where...
2. O wiese medisins applies to IPOTHUCA SCUS! 3. How is seed mucilage 'produced and where exactly is it produced from? 4. True or false? The balance between the activities of abscisic acid (ABA) and gibberellin (GA in seeds is under both developmental and environmental control. 5. How is the balance of GA and ABA important in the dormancy of seeds? 6. Define the terms 'secondary metabolites' and 'allelopathy', indicating their relevance in plant- plant interactions. 7. Identify the 3...
please answer all questions 4. Summarize the statistically significant effects of ABA on seed germination at...
please answer all questions
4. Summarize the statistically significant effects of ABA on seed germination at Days 2 and 7. Explain how the statistically significant effects of ABA are or are not as expected. Include how ABA and concentration are expected to affect seed germination. 5. Summarize the statistically insignificant effects of ABA on seed germination. Explain how the statistically insignificant effects of ABA are or are not as expected. 6. Summarize the statistically significant effects of GA on seed...
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A biologist looked at the relationship between number of seeds a plant produces and the percent of those seeds that sprout. The results of the survey are shown below. Seeds Produced Sprout Percent 65 57 55 70 58 63.8 59 61.4 40 77 69 58.4 66 60.6 45 66 47 58.2 a. Find the correlation coefficient: r = Round to 2 decimal places. b. The null and alternative hypotheses for correlation are: H: ? = 0 H: ? #0 The...
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2. O wiese medisins applies to IPOTHUCA SCUS! 3. How is seed mucilage 'produced and where exactly is it produced from? 4. True or false? The balance between the activities of abscisic acid (ABA) and gibberellin (GA in seeds is under both developmental and environmental control. 5. How is the balance of GA and ABA important in the dormancy of seeds? 6. Define the terms 'secondary metabolites' and 'allelopathy', indicating their relevance in plant- plant interactions. 7. Identify the 3...
please answer all questions
4. Summarize the statistically significant effects of ABA on seed germination at Days 2 and 7. Explain how the statistically significant effects of ABA are or are not as expected. Include how ABA and concentration are expected to affect seed germination. 5. Summarize the statistically insignificant effects of ABA on seed germination. Explain how the statistically insignificant effects of ABA are or are not as expected. 6. Summarize the statistically significant effects of GA on seed...
A biologist looked at the relationship between number of seeds a plant produces and the percent of those seeds that sprout. The results of the survey are shown below. Seeds Produced Sprout Percent 65 57 55 70 58 63.8 59 61.4 40 77 69 58.4 66 60.6 45 66 47 58.2 a. Find the correlation coefficient: r = Round to 2 decimal places. b. The null and alternative hypotheses for correlation are: H: ? = 0 H: ? #0 The...
Complete the following sentences to describe how seed germination can be adapted to environmental conditions. rainfall For a seed to germinate, the embryo will need eaten water and soil However, some seeds also require specific to germinate water and oxygen to open and For example, some pines require release seeds promote Other plants require embryo growth to remove chemicals that cones inhibit or regurgitated to stimulate Some seeds even require being germination stimuli fire dormancy water stimulate Reset
A biologist looked at the relationship between number of seeds a plant produces and the percent of those seeds that sprout. The results of the survey are shown below. 50 67 55 63 43 Seeds Produced Sprout Percent 52 59.2 61 54.6 58 55.8 67 55.2 59 47.2 57 49.8 70.8 a. Find the correlation coefficient: r = Round to 2 decimal places. b. The null and alternative hypotheses for correlation are: Ho: ? = 0 H : ? +...
Like any seeds, watermelon seeds lose their viability over time. If they've been left sitting for years, it's possible that only a small proportion of the seeds may sprout when planted. If they have been stored in a cool, dark, dry location, they have a better chance of sprouting. Drake has a large quantity of old watermelon seeds he's been saving, and now wants to know how many of them may still be able to sprout. He randomly selects 100...
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