Which of the following is NOT a method used by plants to overcome seed dormancy?
Scarification of the seed coat
Stratification or exposure to low temperatures
Exposure to high concentrations of abscisic acid
Leaching of inhibitory substances
Related Questions
Which one of the following inhibits seed germination for a particular period?
Light
Water
Caron dioxide
Dormancy
Some seeds require a specific duration of light exposure to germinate. If a flash of red light (R) is given, followed immediately by a flash of far-red light (FR), what is the MOST LIKELY effect on germination?
Germination will be stimulated.
Germination will be inhibited.
Germination will be unaffected.
The effect will depend on the seed species.
For cryopreservation, plant materials are frozen at
Which of the following is NOT a method used by seeds to overcome dormancy?
Scarification of the seed coat
Stratification (exposure to cold)
Exposure to ethylene
Exposure to appropriate light conditions
Which of the following promotes seed germination, effectively counteracting seed dormancy?
Abscisic acid
Phenolic acids
Short-chain fatty acids
Gibberellins
The ratio of ABA to GA in a dormant seed is typically high. Which of the following changes during seed germination is MOST directly responsible for shifting this balance and promoting growth?
Increased ABA degradation and decreased GA degradation.
Increased GA biosynthesis and decreased ABA biosynthesis.
Transport of ABA out of the embryo and GA into the embryo.
Inactivation of ABA receptors and activation of GA receptors.
Light-sensitive seeds that require a specific light exposure to germinate exhibit:
Thermodormancy
Photodormancy
Hydrodmancy
Chemical dormancy
Which of the following substances does not typically contribute to seed dormancy?
Abscisic acid
Phenolic acids
Short-chain fatty acids
Gibberellins
Which of the following combinations of factors is MOST LIKELY to break seed dormancy in a species exhibiting combinational dormancy?
Exposure to high temperatures followed by gibberellic acid application.
Scarification followed by exposure to high oxygen levels.
Cold stratification followed by exposure to light.
Soaking in water followed by exposure to ethylene.
Which of the following is NOT a method used by plants to overcome seed dormancy?
Scarification of the seed coat
Stratification or exposure to low temperatures
Exposure to high concentrations of abscisic acid
Leaching of inhibitory substances
