337839
Which one of the following pairs is not correctly matched?
1 Gibberellic acid - Leaf fall
2 Cytokinin - Cell division
3 IAA - Cell wall elongation
4 ABA - Stomatal closure
Explanation:
Gibberellic acid is a simple weak acidic plant growth hormone which promotes cell elongation of leaves and stem and generally not involve in abscission.
AIPMT - 2007
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337840
Perishable vegetables can be maintained fresh for a longer period by spraying on them with a solution of:
1 ABA
2 Cytokinin
3 Ethephon
4 Phenyl mercuric acetate
Explanation:
Commercially, cytokinins have been (i) used in tissue culture to form new plant varieties by morphogenesis, (ii) used to prolong the shelf-lives of vegetables such as cabbage, lettuce, etc., (iii) applied to cut flowers to keep them fresh; (iv) applied to help the plant develop resistance to certain pathogens and extreme temperature variations.
337839
Which one of the following pairs is not correctly matched?
1 Gibberellic acid - Leaf fall
2 Cytokinin - Cell division
3 IAA - Cell wall elongation
4 ABA - Stomatal closure
Explanation:
Gibberellic acid is a simple weak acidic plant growth hormone which promotes cell elongation of leaves and stem and generally not involve in abscission.
AIPMT - 2007
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337840
Perishable vegetables can be maintained fresh for a longer period by spraying on them with a solution of:
1 ABA
2 Cytokinin
3 Ethephon
4 Phenyl mercuric acetate
Explanation:
Commercially, cytokinins have been (i) used in tissue culture to form new plant varieties by morphogenesis, (ii) used to prolong the shelf-lives of vegetables such as cabbage, lettuce, etc., (iii) applied to cut flowers to keep them fresh; (iv) applied to help the plant develop resistance to certain pathogens and extreme temperature variations.
337839
Which one of the following pairs is not correctly matched?
1 Gibberellic acid - Leaf fall
2 Cytokinin - Cell division
3 IAA - Cell wall elongation
4 ABA - Stomatal closure
Explanation:
Gibberellic acid is a simple weak acidic plant growth hormone which promotes cell elongation of leaves and stem and generally not involve in abscission.
AIPMT - 2007
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337840
Perishable vegetables can be maintained fresh for a longer period by spraying on them with a solution of:
1 ABA
2 Cytokinin
3 Ethephon
4 Phenyl mercuric acetate
Explanation:
Commercially, cytokinins have been (i) used in tissue culture to form new plant varieties by morphogenesis, (ii) used to prolong the shelf-lives of vegetables such as cabbage, lettuce, etc., (iii) applied to cut flowers to keep them fresh; (iv) applied to help the plant develop resistance to certain pathogens and extreme temperature variations.
