Open AccessTHE ALFALFA PRODUCTIVITY UNDER CONDITIONS OF INSUFFICIENT WATER SUPPLY AND TREATMENT WITH PLANT GROWTH REGULATORS
Author(s) -
L.M. Mykhalkiv,
S.Yа. Kots,
R.A. Yakimchuk
Publication year - 2008
Publication title -
sìlʹsʹkogospodarsʹka mìkrobìologìâ
Language(s) - English
Resource type - Journals
ISSN - 1997-3004
DOI - 10.35868/1997-3004.7.115-121
Subject(s) - sinorhizobium meliloti , nitrogen fixation , agronomy , plant growth , biology , rhizobia , productivity , symbiosis , nitrogen , chemistry , bacteria , macroeconomics , economics , genetics , organic chemistry
The paper covers investigation of nitrogen fixation activity, growth processes and seed productivity of alfalfa inoculated with Sinorhizobium meliloti M6 under different water supply and treatment with synthetic and natural plant growth regulators. It was shown, that Polystimuline K, Polystimuline A-6 and Thermophilic Methane Fermentation Products have intensified nitrogen fixation activity of legume-rhizobial symbiosis. PS-K, PS-A-6 have essentially influenced on aboveground alfalfa mass under drought; both PS-K and TMFP under optimal water supply as well as PS-A-6 under limited water supply have intensified plant growth after cutting. It was showed that treatment of alfalfa with PS-K at budding stage partially reduce negative effect of water deficit on seed yield.