Year: 2015
Pages: 212-216
Number: Volume 7, issue 4
Type: scientific article
Topic: Articles
Authors: Vysotskaya L.B., Arkhipova T.N., Kuzmina L.Yu., Trekozova A.V.!, Galimzianova N.F.!, Kudoyarova Gyuzel R.
We have studied the effect of introducing auxin producing bacteria into the rhizosphere of lettuce plants on the dynamics of growth and auxin content in shoots and roots under different density of planting (one and three plants in the pot). Fast growth response was in the increase in mass shoot/root ratio in plants growing either in group or alone after the treatment with auxin producing bacteria. He later was also characterized by an increase in the ratio of leaf area to mass. Two weeks after introduction of bacteria into rhizosphere we detected a decline in the mass of shoots and root of competing plants either treated on untreated with bacteria. The increase in the mass of lonely growing plants was preceded by accumulation of auxins in the roots. The role of auxins in the control of plant growth under competition is discussed.
lettuce, competition, growth, auxin producing bacteria