growth substance

growth substance

n
(Botany) any substance, produced naturally by a plant or manufactured commercially, that, in very low concentrations, affects plant growth; a plant hormone
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The first step toward the discovery of cytokinins was the observation that a cell division plant growth substance was found to occur in coconut milk (liquid endosperm) (Van Overbeek in 1941).
There were a large number of pots, reflective insulation to provide maximum light and heat, convector heaters and a bag of a special growth substance to make the plants grow.
As inoculum density increased four times, the root weight also increased double which might be due to the large amount of growth substances such as tryptophan and other amino acids when compared with nematode un-inoculated plants (Anwar and Van Gundy, 1993; Setty and Wheeler, 1968).
Chemical hazards: Contamination with chemicals used in agriculture and the production processes of raw materials such as antibiotics, plant growth substances and pesticides, as well as food additives such as preservatives, and including chemicals that are used in the production/processing plant such as oil, grease and cleaning agents for equipment and machinery.
As inoculum density increased, the root weight also increased which might be due to the larger amount of growth substances such as tryptophan and other amino acids when compared nematode un-inoculated plants (Anwar and Van Gundy, 1993; Setty and Wheeler, 1968).
It is evident that organic supplemented medium tends to show morphogenic responses as they are the sources of vitamins, amino acids, organic acids, alternative carbohydrates and growth substances (George et al.
through homoeopathic potencies of plant growth substances.
For example, the section on regulation of root growth has chapters on each of the five major growth substances, followed by chapters on root signals, environmental sensing, and even two chapters on gravitropism that look at the phenomenon from very different perspectives.
Our bodies produce less of these immune and growth substances after adolescence.
Jones was named Fellow by the American Association for the Advancement of Science and the Australian National University in Canberra, honored with the Distinguished Research Award by the International Plant Growth Substances Association and awarded the titles Docteur Honoris Causa and Professeur Exceptionelle by the Universite Paul Sabatier in Toulouse.