338208
Bacterial pathogen responsible for foolish seedling disease of rice seedlings is
1 Gibberella kurosawa.
2 Gibberella fujikuroi.
3 Gibberella moniliformae.
4 None of them
Explanation:
The 'bakanae' (foolish seedling) disease of rice seedlings, was caused by a fungal pathogen Gibberella fujikuroi.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338209
Auxin can be bioassayed by
1 Potometer
2 Hydroponics
3 Avena coleoptile curvature
4 Lettuce hypocotyl elongation
Explanation:
Avena curvature test is based on concentration of auxin, avena curvature is based on experiments of fruits Went. 100 curvature is produced by auxin concentration of \(150 \mathrm{mg} /\) litre at \(250 \mathrm{c}\) and \(90 \%\) relative humidity.
AIPMT - 2015
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338210
The discovery of PGRs started with the observation of the following scientists:
1 Charles Darwin and his son Francis Darwin.
2 Charles Darwin and his son James Darwin.
3 1 and 2
4 Charles Darwin and his grandson Francis Darwin.
Explanation:
The discovery of each of the five major groups of PGRs have been accidental. All this started with the observation of Charles Darwin and his son Francis Darwin when they observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards the light source (phototropism). After a series of experiments, it was concluded that the tip of coleoptile was the site of transmittable influence that caused the bending of the entire coleoptile. Auxin was isolated by F.W. Went from tips of coleoptiles of oat seedlings.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338211
Hormone involved in phototropism is
1 Ethylene
2 Gibberlin
3 Auxin
4 2, 4-D
Explanation:
Auxin hormone is involved in phototropism, i.e. the bending of plant towards the direction of light.
338208
Bacterial pathogen responsible for foolish seedling disease of rice seedlings is
1 Gibberella kurosawa.
2 Gibberella fujikuroi.
3 Gibberella moniliformae.
4 None of them
Explanation:
The 'bakanae' (foolish seedling) disease of rice seedlings, was caused by a fungal pathogen Gibberella fujikuroi.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338209
Auxin can be bioassayed by
1 Potometer
2 Hydroponics
3 Avena coleoptile curvature
4 Lettuce hypocotyl elongation
Explanation:
Avena curvature test is based on concentration of auxin, avena curvature is based on experiments of fruits Went. 100 curvature is produced by auxin concentration of \(150 \mathrm{mg} /\) litre at \(250 \mathrm{c}\) and \(90 \%\) relative humidity.
AIPMT - 2015
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338210
The discovery of PGRs started with the observation of the following scientists:
1 Charles Darwin and his son Francis Darwin.
2 Charles Darwin and his son James Darwin.
3 1 and 2
4 Charles Darwin and his grandson Francis Darwin.
Explanation:
The discovery of each of the five major groups of PGRs have been accidental. All this started with the observation of Charles Darwin and his son Francis Darwin when they observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards the light source (phototropism). After a series of experiments, it was concluded that the tip of coleoptile was the site of transmittable influence that caused the bending of the entire coleoptile. Auxin was isolated by F.W. Went from tips of coleoptiles of oat seedlings.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338211
Hormone involved in phototropism is
1 Ethylene
2 Gibberlin
3 Auxin
4 2, 4-D
Explanation:
Auxin hormone is involved in phototropism, i.e. the bending of plant towards the direction of light.
338208
Bacterial pathogen responsible for foolish seedling disease of rice seedlings is
1 Gibberella kurosawa.
2 Gibberella fujikuroi.
3 Gibberella moniliformae.
4 None of them
Explanation:
The 'bakanae' (foolish seedling) disease of rice seedlings, was caused by a fungal pathogen Gibberella fujikuroi.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338209
Auxin can be bioassayed by
1 Potometer
2 Hydroponics
3 Avena coleoptile curvature
4 Lettuce hypocotyl elongation
Explanation:
Avena curvature test is based on concentration of auxin, avena curvature is based on experiments of fruits Went. 100 curvature is produced by auxin concentration of \(150 \mathrm{mg} /\) litre at \(250 \mathrm{c}\) and \(90 \%\) relative humidity.
AIPMT - 2015
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338210
The discovery of PGRs started with the observation of the following scientists:
1 Charles Darwin and his son Francis Darwin.
2 Charles Darwin and his son James Darwin.
3 1 and 2
4 Charles Darwin and his grandson Francis Darwin.
Explanation:
The discovery of each of the five major groups of PGRs have been accidental. All this started with the observation of Charles Darwin and his son Francis Darwin when they observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards the light source (phototropism). After a series of experiments, it was concluded that the tip of coleoptile was the site of transmittable influence that caused the bending of the entire coleoptile. Auxin was isolated by F.W. Went from tips of coleoptiles of oat seedlings.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338211
Hormone involved in phototropism is
1 Ethylene
2 Gibberlin
3 Auxin
4 2, 4-D
Explanation:
Auxin hormone is involved in phototropism, i.e. the bending of plant towards the direction of light.
338208
Bacterial pathogen responsible for foolish seedling disease of rice seedlings is
1 Gibberella kurosawa.
2 Gibberella fujikuroi.
3 Gibberella moniliformae.
4 None of them
Explanation:
The 'bakanae' (foolish seedling) disease of rice seedlings, was caused by a fungal pathogen Gibberella fujikuroi.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338209
Auxin can be bioassayed by
1 Potometer
2 Hydroponics
3 Avena coleoptile curvature
4 Lettuce hypocotyl elongation
Explanation:
Avena curvature test is based on concentration of auxin, avena curvature is based on experiments of fruits Went. 100 curvature is produced by auxin concentration of \(150 \mathrm{mg} /\) litre at \(250 \mathrm{c}\) and \(90 \%\) relative humidity.
AIPMT - 2015
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338210
The discovery of PGRs started with the observation of the following scientists:
1 Charles Darwin and his son Francis Darwin.
2 Charles Darwin and his son James Darwin.
3 1 and 2
4 Charles Darwin and his grandson Francis Darwin.
Explanation:
The discovery of each of the five major groups of PGRs have been accidental. All this started with the observation of Charles Darwin and his son Francis Darwin when they observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards the light source (phototropism). After a series of experiments, it was concluded that the tip of coleoptile was the site of transmittable influence that caused the bending of the entire coleoptile. Auxin was isolated by F.W. Went from tips of coleoptiles of oat seedlings.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338211
Hormone involved in phototropism is
1 Ethylene
2 Gibberlin
3 Auxin
4 2, 4-D
Explanation:
Auxin hormone is involved in phototropism, i.e. the bending of plant towards the direction of light.
