EVALUAREA ACŢIUNII LIGNOHUMATULUI DE POTASIU ASUPRA DIVIZIUNII CELULARE LA ALLIUM CEPA L.
Date
2018
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
CEP USM
Abstract
In prezenta lucrare ne-am propus drept scop să evidenţiem acţiunea lignohumatului de potasiu asupra diviziunii
mitotice la plante-test (Allium cepa L.). A fost testată acţiunea a cinci concentraţii diferite de lignohumat de potasiu
(0,05%; 0,1%; 0,25%; 0,5%; 1,0%) asupra germinării seminţelor de ceapă prin analiza următorilor parametri: indicele
mitotic, indicii fazici ai mitozei, energia germinativă, lungimea rădăcinii şi lungimea tulpinii. Testarea pe plante-test, pe
ceapă, a permis stabilirea efectului biostimulator al lignohumatului de potasiu asupra creşterii şi dezvoltării plantelor, în
funcţie de concentraţia substanţei. Efectele pozitive ale compusului studiat s-a manifestat la nivel celular prin creşterea
indicelui mitotic şi accelerarea unor faze ale diviziunii celulare. Creşterea activităţii mitotice sub influenţa lignohumatului
de potasiu a corelat pozitiv cu creşterea indicilor fiziologici de creştere şi dezvoltare.
The present paper aims at highlighting the action of potassium lignohumate on the mitotic division in test plants (Allium cepa L.). The action of five different concentrations of potassium lignohumarate (0.05%, 0.1%, 0.25%, 0.5%, 1.0%) on the germination of onion seeds by analyzing the following parameters: mitotic index, phage mitosis index, germinative energy, root length and stem length has tested. Testing on test plants, on onion, has determined the biostimulating effect of potassium lignohumate on the growth and the development of plants, depending on the concentration of the substance. The positive effects of the studied compound have been manifested at the cellular level by increasing the mitotic index and accelerating some phases of the cell division. Increased mitotic activity under the influence of lignohumarate potassium has positively correlated with increased physiological growth and development indices.
The present paper aims at highlighting the action of potassium lignohumate on the mitotic division in test plants (Allium cepa L.). The action of five different concentrations of potassium lignohumarate (0.05%, 0.1%, 0.25%, 0.5%, 1.0%) on the germination of onion seeds by analyzing the following parameters: mitotic index, phage mitosis index, germinative energy, root length and stem length has tested. Testing on test plants, on onion, has determined the biostimulating effect of potassium lignohumate on the growth and the development of plants, depending on the concentration of the substance. The positive effects of the studied compound have been manifested at the cellular level by increasing the mitotic index and accelerating some phases of the cell division. Increased mitotic activity under the influence of lignohumarate potassium has positively correlated with increased physiological growth and development indices.
Description
Keywords
lignohumat de potasiu, energie germinativă, celule meristematice, activitate mitotică, potassium lignohumarate, meristematic cells, mitotic activity, germinative energy
Citation
FRUNZĂ, M., BÎRSAN, A., BEGU, T. Evaluarea acţiunii lignohumatului de potasiu asupra diviziunii celulare la Allium Cepa L.. In: Studia Universitatis Moldaviae. Seria Științe reale și ale naturii: Biologie. Chimie. Revista științifică. 2018, nr. 1(111), pp. 71-75. ISSN 1814-3237.