Growth regulators help in plant growth. Examples are auxin, gibberellins, cytokinens etc.
Inoculation of plant parts with growth-promoting substances.
tropisms
John W. Mitchell has written: 'Methods of studying plant hormones and growth-regulating substances' -- subject(s): Botanical Technique, Botany, Growth substances for plants, Plant hormones, Plant regulators, Technique, Technique, Botanical 'Test methods with plant-regulating chemicals' -- subject(s): Growth (Plants), Growth regulators, Plant hormones, Plant growth promoting substances, Plant growth inhibiting substances, Research 'Plant-growth regulators' -- subject(s): Growth regulators, Agricultural chemicals, Plant regulators
tropisms
M. S. Liu has written: 'Influence of plant growth substances on the absorption of some plant nutrients by tomato plants' -- subject(s): Tomatoes, Plant growth promoting substances
Plant growth substances, also known as plant hormones, regulate various aspects of plant growth and development. They work at very low concentrations throughout the plant. These substances include auxins, cytokinins, gibberellins, abscisic acid, and ethylene. They can influence processes such as cell elongation, cell division, seed germination, and fruit ripening.
Rhizoids secrete substances like enzymes and acids to aid in the breakdown of organic matter and to assist in nutrient absorption. These substances help the rhizoids penetrate substrates and extract essential nutrients required for plant growth.
Nitrates are essential for the growth of amino acids and therefore are essential for the production plant proteins, which help the plant to grow :)
its help in plant cell growth.
Geert Willem Wieringa has written: 'On the occurrence of growth inhibiting substances in rye' -- subject(s): Plant growth inhibiting substances, Rye
how do deep and wide root system of plant help it to survive
Plant hormones are natural, created by the plants themselves. Plant growth regulators, on the other hand, are usually synthetic in nature. Both serve to help plants grow at low concentration, and both can damage plants at high concentrations.