Open AccessAllelopathic Allelopathic impact of sorghum on weed management, yield and quality of maize under different seed rates
Author(s) -
Tariq Ahmed Keerio,
Muhammad Nawaz Kandhro,
Ahmed Naqi Shah,
Muhammad Ibrahim Keerio,
Ghulam Murtaza Jamro
Publication year - 2021
Publication title -
pakistan journal of weed science research
Language(s) - English
Resource type - Journals
eISSN - 2225-7942
pISSN - 1815-1094
DOI - 10.28941/pjwsr.v27i4.1009
Subject(s) - mesotrione , sorghum , allelopathy , agronomy , weed control , atrazine , weed , biology , yield (engineering) , germination , pesticide , materials science , metallurgy
A field study was carried out to estimate the allelopathic potential of sorghum immature and mature plant extracts under various seed rates on weeds density and yield of maize cultivar Dadu Maize-I. The experiment contained of different weed control practices i.e., control (No weeding), various levels of sorghum immature and mature plant extracts, herbicides and hand weeding under various seed rates (20, 25, 30 & 35 kg per ha). The analysis of variance showed that various weed control practices demonstrated substantial decrease in weeds and caused increase in kernel yield over control. The application of sorghum immature extract @ 15 L per ha in combination with herbicide (Mesotrione Atrazine) @ 1.0 L per ha decreased effectively weed density (m-2) and dry biomass (g m-2) and resultantly produced superior growth and yield traits particularly kernel yield (t per ha) of maize. Sorghum mature plant extract @ 15 L per ha in integration with herbicide (Mesotrione Atrazine) @ 1.0 L per ha ranked 2nd in effectiveness of controlling weeds as well as increasing maize kernel yield (t per ha). As much as effect of seed rates is concerned, the least weed density (m-2) and greatest kernel yield (t per ha) were noticed in seed rate 35 kg per ha but optimal kernel yield (t per ha) was record in seed rate 30 kg per ha. Hence, the results suggested that combination of plant extracts and herbicide at reduced doses controlled weeds efficiently and optimum enhancement in kernel yield of maize was noticed at seed rate 30 kg per ha.