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Estimation of weed dry biomass and grain yield as a function of growth and yield traits under allelopathic weed management in maize Planta Daninha
MAHMOOD,A.; KHALIQ,A.; IHSAN,M.Z.; NAEEM,M.; DAUR,I.; MATLOOB,A.; EL-NAKHLAWY,F.S..
Growing concerns about toxicity and development of resistance against synthetic herbicides have demanded looking for alternative weed management approaches. Allelopathy has gained sufficient support and potential for sustainable weed management. Aqueous extracts of six plant species (sunflower, rice, mulberry, maize, brassica and sorghum) in different combinations alone or in mixture with 75% reduced dose of herbicides were evaluated for two consecutive years under field conditions. A weedy check and S-metolachlor with atrazine (pre emergence) and atrazine alone (post emergence) at recommended rates was included for comparison. Weed dynamics, maize growth indices and yield estimation were done by following standard procedures. All aqueous plant extract...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays; Allelopathy; Crop growth indices; Mulberry; Plant combinations.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000100023
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Taxonomic Appraisal of Nodulation in the Leguminosae of Pakistan Planta Daninha
MAHMOOD,A.; ATHAR,M..
ABSTRACT: Rhizobia are gram negative bacteria that infect roots of leguminous plants and form root nodules. Legume-rhizobia symbioses are of practical importance in providing sustainable food supply and increased agricultural productivity. Existing lists published on the nodulating ability of Pakistani legumes were merged to compile a comprehensive list. The list contained 225 species distributed in 75 genera that were native to Pakistan. Legumes were arranged according to the recommendations of International Legume Database and Information Center (ILDIS) for legumes of south Asia. Out of 225 species examined, 28 belonged to Caesalpinioideae, 29 belonged to Mimosoideae and 168 belonged to Papilionoideae. The percentage of nodulation in Caesalpinioideae,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nodulated legumes; Taxonomy; International database.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100287
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Trianthema portulacastrum and Cyperus rotundus Interference in Maize and Application of Allelopathic Crop Extracts for Their Effective Management1 Planta Daninha
NAEEM,M.; MAHMOOD,A.; IHSAN,M.Z.; DAUR,I.; HUSSAIN,S.; ASLAM,Z.; ZAMANAN,S.A..
ABSTRACT Horse purslane (Trianthema portulacastrum) and purple nutsedge (Cyperus rotundus) are two noxious C4 weeds of maize crop causing extensive yield losses. A two years field experiment was performed to estimate interference of T. portulacastrum and C. rotundus and to evaluate the role of allelopathic water extracts for effective weed management in maize. Five plant water extracts in ten binary combinations were foliar applied in triplicated randomized complete block design. Plots treated with commercial herbicide atrazine and weedy check (control), were also maintained for comparison. The highest density of both weed species was observed at 45 days after sowing (DAS) while weed dry biomass was higher at 60 DAS. Binary combination of sorghum-sunflower...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant leachates; Binary combination; Allelochemicals; Net benefits; Weed management.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000200209
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