The study of plant hormones provides a fascinating insight into the way plant growth and development is controlled. This Plant Hormones set can be used to demonstrate the role of plant hormones and their use by man, thus experiments on breaking dormancy in seeds, rooting cuttings, killing weeds, preventing leaves from dropping, etc. are included. These experiments are not difficult to perform and many are suitable for GCSE students.
Possible investigations include:
Encouraging root formation
Preventing buds from sprouting
Controlling the germination of seeds
Controlling leaf fall
Selective herbicidal action
Growing fruits without seeds
Acceleration of fruit ripening
The effect of I.A.A. on shoot growth
The effect of I.A.A. on root growth
The effect of Gibberellic Acid on genetically dwarf plants
Tropic responses
The set contains:
Full teaching notes
Culture Medium – enough to make up 20 Litres
Indol-3-yl acetic acid – 1.5g
Lanolin – 100g
Gibberellic acid – 0.5g
2.4D Herbicide – 10ml
0.1% IAA in lanolin paste – 100g
Coumarin – 5g
N.A.A. – 10g
0.01% IAA in lanolin paste
Thiourea – 10g
Ethrel C – 10ml
Tetrazolium chloride – 1g
Agar – 10g
