Vērtējums:
Publicēts: 02.08.2003.
Valoda: Angļu
Līmenis: Vidusskolas
Literatūras saraksts: Nav
Atsauces: Nav
  • Eseja 'Plant Growth Hormone', 1.
Darba fragmentsAizvērt

Plant hormones and growth regulators are chemicals that affect flowering, aging, root growth, killing of leaves, promotion of stem elongation, color enhancement of fruit, prevention of leafing, and many other conditions. Very small concentrations of these substances produce major growth changes. All plants produce hormones naturally, and growth regulators can be applied by people to are applied to plants by people. Plant growth regulators may be synthetic compounds that mimic naturally occurring plant hormones, or they may be natural hormones that were extracted from plant tissue. In our plant growth experiment growth stimulants and growth inhibitors were used. Ideally the plants that received the growth stimulants should have grown larger than the others.…

Autora komentārsAtvērt
Atlants