STUDY ON THE ALLELOPATHIC EFFECT OF SOME WEEDS EXTRACT ON MAIZE AND RICE
Date
2013-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
HAJEE MOHAMMOD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR
Abstract
An experiment was conducted at the laboratory of the Department of
Agricultural Chemistry, Hajee Mohammad Danesh Science and
Technology University, Dinajpur during November 2012 to March
2013 to evaluate the suitability of maize and rice cultivation with the
application aqueous extract of herbal weeds. The treatments of the
experiment involved, T, (boro shama); T, (holde mutha)); T; (chapra);
T, (durba ghas); T; (chanchi) and Tc (Control). A significant variation
was observed among the treatment in respect of different parameters of
maize and rice. In case of maize, highest germination was observed in
the treatment T,. And the lowest germination was observed in the
treatment T, and Ty, Maximum shoot length of maize at DAS was
observed in the treatment T_T; and T,. While minimum shoot length was
observed in the treatment T;. At 8 (DAS) highest root length (3.37, 16.54
and 22.90 cm) was observed in the treatment T (holde mutha) treatment.
While, the shortest (3.10, 3.15 and 3.37 cm) was recorded in T, (control)
treatment. In case of rice, highest germination was observed in the
treatment T, and T>. And the lowest germination was observed in the
treatment T; and T;, Maximum shoot length of rice at DAS was observed
in the treatment Tc and T;. Whereas minimum shoot length was
observed in the treatment T3 and Ty. At 14 DAS highest root length (4.74
cm) was observed in the treatment T; (chanchi) which was statistically
different with other treatments. While, the shortest (2.63 cm) was recorded
in T, (durba ghas) treatment. However, at 16 DAS, the highest root length
(6.16 cm) was observed in the treatment applied with no extract i.e. T, and
the shortest root length (3.27 cm) was recorded in the treatment T3 with
application of chapra extract. On the other hand, at 18 DAS, the highest
shoot length (7.68 cm) was observed in the treatment T,, and the shortest
shoot length (3.88 cm) was recorded in the treatment T, which was
statistically different from other treatments.
Description
Allelopathy is the influence of one plant upon another plant growing in its
vicinity by the release of certain metabolic toxic products in the
environment. The term allelopathy was introduced by Holisch (1937). It
covers biochemical interactions, both beneficial and harmful, between plant
species including fungi and bacteria. Now the term is usually limited to the
detrimental effects that one species has on another.
Keywords
Experimental design, Sowing of seeds, Intercultural operations, Petridis experiment