EXERCISE NO. 11 Flashcards
Title
PLANT GROWTH REGULATION:
The effect of Auxin and Gibberellin on Plant Growth
The presence of ____________ is well known to regulate plant processes as these chemical compounds are present and transmitted in almost all parts of the plant.
Phytohormones
_______ may act individually or synergistically depending on varied plant response mechanism which may also be either _______ or ______ at times.
Phytohormones;
complementary or antagonistic
Two examples of phytohormones
auxin and gibberellin
auxin and gibberellin are known plant growth _________
promoters
is the main type of auxin in plant required for both primary and lateral root intitiation.
Indole-acetic-acid (IAA)
is known to enhance stem elongation and bolting, the process of internodal elongation in stems of rosette plants.
Gibberellin
is one of the bio active gibberellin molecules
GA3
plant used for the experiment
Coleus scutellarioides (Mayana)
how much water is filled in each container?
150 mL
what are the set-ups?
1: 30 sprays of water in the soil
2: 30 sprays of IAA in the soil and water contained plastic
3: 30 sprays of GA3 in the soil and water contained plastic
4: 30 sprays of IAA and GA3 in the soil and water contained plastic
two changes in plant that are measured
change in plant height and number of leaves
What accounts for the differences of plant height and number of leaves observed among the different plant groups?
auxin and gibberellin
Between auxin and gibberellin, which one is accountable for the plant height and/or for the increase in plant leaf number
although both contributes for the plant height, the auxin is more accountable for the increase in the plant leaf number
Based on your result, which of the plant group showed a more promising effect in terms of an increase in plant height and plant leaf number?
The set-up 4 where both auxin and gibberellin are sprayed
