Allelopathic Influence of Sesame and Green Gram Intercrops on Cotton in a Replacement Series

Shah, Adnan Noor; Iqbal, Javaid; Fahad, Shah; Tanveer, Mohsin; Yang, Guozheng; Khan, Ejaz Ahmad; Shahzad, Babar; Yousaf, Muhammad; Hassan, Waseem; Ullah, Abid; Bukhari, Muhammad Adnan; Salah, Akram; Saud, Shah; Alharby, Hesham F.

doi:10.1002/clen.201500469

Cited by 9 publications

(7 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been found that at higher seed density of Carduus nutans the germination rate of Lolium perenne and Trifolium subterraneum diminished [7]. Similar results have been found in mixture crops when Sesamum indicum diminished the root length of Gossypium hirsutum [25], or when increasing plant number of Triticum aestivum diminished the biomass of Avena fatua [26]. Thus, different densities of the interacting plants may lead to different allelochemical concentrations, and therefore density should be taken into account when allelopathy experiments are performed [27].…”

Section: Introductionsupporting

confidence: 66%

Density-dependent effect of allelopathy on germination and seedling emergence in two Ipomoea species

Aguilar-Franco

Flores‐Palacios

Flores-Morales

et al. 2019

Rev. Chil. de Hist. Nat.

View full text Add to dashboard Cite

Background Density in inter and intraspecific plant-plant interactions affects the action modes of allelopathy (autotoxicity, negative and positive allelopathy). Some seeds exude compounds that inhibit the germination of others. Ipomoea murucoides and I. pauciflora are sympatric tree species that form patches at the local scale where one or the other dominates, possibly due to allelopathy in the seeds. The objective of this study was to determine the possible density-dependence of the allelopathic effect among seeds of these species through the measure of seed germination and seedling emergence. Methods In both species, allelopathy was measured as: a) germination in mixed sowing of both species at different proportions, b) germination in single-species trials at different densities after adding seed extracts of both species, and c) seedling emergence in seed mixtures of both species sown at different proportions beneath canopies of the two Ipomoea species. Results Seed germination of I. murucoides was increased by the presence of I. pauciflora and diminished at higher densities of its own seeds; however, seed germination of I. pauciflora was not affected by the presence of I. murucoides seeds. The addition of extracts (either from conspecifics or congeneric) diminished the germination of both species and at higher seed densities the germination was lower. Seedling emergence did not depend on the species under which the seeds were sown nor on the density of the seeds. Conclusions The germination experiments evidenced positive allelopathy and/or autotoxicity, while there was no evidence of allelopathic effects in seedling emergence. The allelopathic activity is reported in the seeds of these species for the first time.

show abstract

Section: Introductionsupporting

confidence: 66%

Density-dependent effect of allelopathy on germination and seedling emergence in two Ipomoea species

Aguilar-Franco

Flores‐Palacios

Flores-Morales

et al. 2019

Rev. Chil. de Hist. Nat.

View full text Add to dashboard Cite

show abstract

“…Weed management is a current necessity because weeds are widely distributed in agricultural systems and there is a yield loss of 9.7% as a result of 1,800 different types of weeds in agricultural crops per year. Management to reduce these weed species can be performed in different ways (Li & Wang, 2010;Shah et al, 2016;Shah et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Allelopathic effect of aqueous extract of Cyperus rotundus on Lactuca sativa and Solanum lycopersicum

Bispo¹,

Meneses

Sousa

et al. 2020

Científica

View full text Add to dashboard Cite

The demand for vegetables was reinforced by the search for healthier foods, favoring increased sales of fresh products. Lettuce (Lactuca sativa L.) and tomato (Solanum lycopersicum L.) are the most cultivated vegetables in Brazil, thus being economically important. This study evaluates the allelopathic effect of aqueous extract of nutgrass (Cyperus rotundus) on lettuce (Lactuca sativa) and tomato (Solanum lycopersicum) plants, aiming to analyze its influence on species development. Two trials were conducted in the premises of the Taquaritinguense Institute of Higher Education (ITES) in Taquaritinga city, São Paulo State, under temperatures ranging from 14 ºC to 28 ºC, in a greenhouse. The variables analyzed were: fresh shoot and root weight (g), using a semianalytical scale; and root length (cm), using a ruler. Cyperus rotundus leaf extract at higher concentrations positively affected the early growth of vegetables. Studies on allelopathic effects between plants are extremely important because the use of this extract can contribute to seedling growth. The 200% concentration of Cyperus rotundus extract increased root and shoot development in tomato crop.

show abstract

“…Allelopathy is the concealment of one species by another because of poisonous chemicals; both negative and positive aspects are incorporated in this phenomenon (Kabir et al, 2010;Shah et al, 2016). Several researchers have reported weed species having inhibitory effects on weeds (Khalid et al, 2002;Javaid et al, 2005) while their negative effects on seed germination and seedlings growth of economically important crop plants have also been stated (Mulatu et al, 2009;Shah et al, 2017a).…”

Section: Introductionmentioning

confidence: 99%

Weed Management in Wheat by Cuscuta Alone and in Combination with Commercial Weedicides Allymax and Axial

et al. 2020

View full text Add to dashboard Cite

The present study was to assess the additive effects of cuscuta (akasbel) aqueous extract alone and in combination with full and reduced doses of commercially available weedicides against weeds in wheat crop during the year 2016-2017. The study was conducted in a randomized complete block design (RCBD) with 3 replications. The results showed that hand weeding and use of weedicides Allymax and Axial (full and half recommended doses) significantly controlled all prevailing weeds and increased yield and yield contributing parameters over the weedy check/control and sole application of cuscuta aqueous extract. Hand weeding and Allymax (full dose) showed minimum weed population, relative density, fresh and dry weed biomass and higher leaf area index (LAI), leaf area duration (LAD), crop growth rate (CGR), plant height, 1000 grain weight and grain yield while net assimilation rate (NAR), chlorophyll content, number of tillers, spike length, grains spike-1 and biological yield were maximum only in hand weeding. These findings suggest that in order to attain highest wheat yield, the field should be kept free from weeds by hand weeding (if labour is not a limiting factor) or use recommended dose of weedicide Allymax for efficient weed management in wheat.

show abstract

Allelopathic Influence of Sesame and Green Gram Intercrops on Cotton in a Replacement Series

Cited by 9 publications

References 12 publications

Density-dependent effect of allelopathy on germination and seedling emergence in two Ipomoea species

Density-dependent effect of allelopathy on germination and seedling emergence in two Ipomoea species

Allelopathic effect of aqueous extract of Cyperus rotundus on Lactuca sativa and Solanum lycopersicum

Weed Management in Wheat by Cuscuta Alone and in Combination with Commercial Weedicides Allymax and Axial

Contact Info

Product

Resources

About