EXPLORING THE ALLELOPATHIC AND HERMETIC EFFECT OF KHATAMI (Altheae officinalis) ON EMERGENCE AND SEEDLING GROWTH OF RADISH (Raphanus sativus)
EXPLORING THE ALLELOPATHIC AND HERMETIC EFFECT OF KHATAMI (Altheae officinalis) ON EMERGENCE AND SEEDLING GROWTH OF RADISH (Raphanus sativus)
Rizwan Maqbool1, Bilal Ahmad Khan*2, Sumbal Parvez3, Muhammad Ather Nadeem2, Azhar
Hassan1, Jamshaid Qamar2, Ali Nawaz1, Muhammad Adnan2, Rafia Khalid3, Muhammad
Usman2
ABSTRACT
Plant release biochemicals into its surrounding environment that act as bioherbicide
at high concentration and plant growth promoter at low concentration. Therefore, this study
was planned at the Weed Science laboratory, Department of Agronomy, University of
Agriculture Faisalabad-Pakistan, during winter 2018 to evaluate the hermetic effects of
Althaea officinalis L. (Khatami) on Radish (Raphanus sativus). The experiments were laid
out under completely randomized design (CRD) having three replications. The aqueous
extracts of A. officinalis L. were used on radish at different concentrations (2.5%, 5%, 10%,
20%, 40% and 80%). Data regarding seed germination and seedling growth (shoot length,
root length, shoot fresh weight, root dry weigh) of radish were recorded using standard
procedures. Results revealed that the aqueous extract of A. officinalis at higher
concentration (80%) act as bioherbicide and produced inhibitory effects on R. sativus that
resulted in maximum time to 50% germination (4.68 days) and mean germination time
(9.05 days) while minimum germination index (3.60), germination percentage (85.00%),
shoot length (42.4 cm), root length (25.90 cm), shoot fresh weight (53.30 g) and root fresh
weight (13.30 g). While at lower concentration (10%) it showed hermetic effect and
produced maximum germination percentage (100.00%), shoot length (58.2 cm), root
length (52.0 cm), shoot fresh weight (90.00g), root fresh weight (26.30 g) minimum time
to complete 50% germination (3.36 days), germination index (6.00%) and mean
germination time (5.73 days) growth. In A. officinalis among different phenolic compound
minimum Syringic acid (0.60%) and maximum Quercetion (12.3%) compound was found.
Therefore, it was concluded from this study that aqueous extract of officinalis can be used
as a growth promoter at lower concentration while as well as at higher concentration for
environmentally friendly control of weeds.
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September 2021
Vol. 27, Iss. 3, Pages 253-441
