Comparative Phytotoxicity of Aqueous Extracts of Centaurea maculosa and Melilotus officinalis on Germinability and Growth of Wheat

Siyar, Saira; Chaudhry, Zubeda; Majeed, Abdul

doi:10.1515/cerce-2017-0033

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…For example, Phragmites australis suppresses the growth of other species plants in surroundings by releasing a phytotoxin compound (Rudrappa et al 2009). Recently, researchers have track down the release of allelochemicals in some invasive plants, like Centauera stoebe (Gfeller et al 2019), Canada goldenrod (Wang et al 2018), C. stoebe, and Melilotus officinalis (Siyar et al 2017), that may inhabit native plants.…”

Section: Introductionmentioning

confidence: 99%

The role of root exudates, CMNs, and VOCs in plant–plant interaction

Rahman

Zhou

2019

Journal of Plant Interactions

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In the last few decades, incredible advances have been made in understanding the way of communication among members of kingdom plantae. Some plants fight for their existence and try to suppress the growth of other plants, while some share resources to benefit each other for their survival. During all these processes, plants use several biotic and abiotic mediums such as root exudates, volatile organic compounds (VOCs), and light for the interactions. Plant can change its physiological behaviors, such as change in gene regulation and induction of defense mechanism, when linked with neighboring plant through common mycorrhizal networks (CMNs). Root exudates are also critical in plant-plant interaction, since they share information, shape microbial community, and mediate recourse competition. Moreover, plants have been found warning their neighbors about pathogen attack and herbivory through the release of VOCs. This review will advance the understandings of roles of various communication media from the prospective of intra-and interspecific interactions as well as kin recognition.

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Section: Introductionmentioning

confidence: 99%

The role of root exudates, CMNs, and VOCs in plant–plant interaction

Rahman

Zhou

2019

Journal of Plant Interactions

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“…It is used as food for human consumption as well as food grain for animals (Moussa, 2001). Siyar et al (2017) reported that weed incursion in cultivated fields is a serious biological problem, which causes considerable yield losses of economically important field crops through allelopathy and competitive interactions. Allelopathic interactions are mediated by secondary metabolites (allelochemicals) released through leaching, root exudation, volatilization and residue decomposition into the environment and affect growth and development in natural environments and agro-ecosystems (Cheema et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Phytotoxic Effect of Tithonia rotundifolia (Miller) S.F.Blake on Chlorophyll and Protein Contents of Vigna unguiculata L. and Zea mays L.

John¹,

Otusanya²

2019

JBLS

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A large number of plants impose inhibitory effects on the germination and growth of neighbouring or successional plants by releasing allelochemicals into the soil. This study investigated the phytotoxic effects of Tithonia rotundifolia (Miller) S.F.Blake on the chlorophyll and protein contents of Vigna unguiculata (L.) Walpers and Zea mays L.. This was with a view to determining the susceptibility of these crops to allelochemicals in the extracts prepared from T. rotundifolia. Seeds of the test plants were sown in pots filled with top humus soil. At two weeks, seedlings in each pot were thinned down to 10 seedlings per pot. Potted plants of the test crops were supplied with 400 ml of the appropriate water extracts while the control potted plants were supplied with 400 ml of water. Biochemical analyses were carried out according to standard methods. The data obtained were analysed by (ANOVA) to determine significant (P< 0.05) effects. The means were compared using Duncan Multiple Range Test. The chlorophyll a, chlorophyll b, total chlorophyll and protein contents in V. unguiculata and Z. mays and were significantly inhibited by the extract from T. rotundifolia. The inhibitory effects of these allelochemicals increased with concentration. The phytotoxic effect of T. rotundifolia was species dependent. It was concluded that the extract contains water-soluble allelochemicals which inhibited the biochemical parameters of the test crops. T. rotundifolia should be controlled where it grows in association with cultivated crops.

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“…Furthermore, agroforestry trees release allelochemicals to rhizosphere, which may establish negative or stimulatory allelopathic interactions with cultivated crops, weeds and microorganisms. Although, all parts of the agroforestry trees may exhibit allelopathy; however, leaves and roots are primary organs, which have strong potential for allelopathic interactions (Narwal, 2000;Majeed et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Allelopathic Effects of Sheesham Extracts on Germination and Seedling Growth of Common Wheat

Siyar

Sami

Hussain

et al. 2018

Cercetari Agronomice in Moldova

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Interactions between plants represent an important aspect of ecology, which enables them to properly utilize the available resources in the given environment. The interactions are mediated by different mechanisms, among which allelopathy is a significant one. During allelopathic interactions, plants tend to suppress competitors plants or stimulate those which can help them adjust in the environment in a better manner. Such interactions are triggered by the release of chemical compounds termed, as allelochemicals, which have an important role in agricultural modulation. The objective of this experiment was to evaluate the allelopathic effects of leaf and bark extracts of sheesham (Dalbergia sissoo L.) on germination data of wheat (Triticum aestivum L.) cv. Auqab. Different concentrations (7 g/l, 14 g/l, and 21 g/l) of sundried leaf and bark extracts, obtained after 12, 24 and 36 h of soaking duration were tested for germination %, mean germination time (MGT), plumule and radicle length and seedling dry weight. It was observed that germination % was negatively affected by 21 g leaf and bark extract concentration at 36 h soaking duration, but not by lower concentration or soaking durations. MGT was significantly increased by leaf and bark extracts at three concentration levels, as well as soaking durations. Plumule and radicle length responded negatively to both leaf and bark extracts at higher concentration and when soaking duration was increased. Seedling dry weight was increased by 7 g leaf extracts at 36 h, but reduced by 21g at 12 and 24 h soaking durations. On the other hand, 21 g of bark extracts at 12, 24 and 36 h soaking duration resulted in significantly increased dry biomass. These results suggest negative allelopathy of Sheesham on studied germination parameters of wheat, except radicle length and dry biomass.

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Comparative Phytotoxicity of Aqueous Extracts of Centaurea maculosa and Melilotus officinalis on Germinability and Growth of Wheat

Cited by 5 publications

References 7 publications

The role of root exudates, CMNs, and VOCs in plant–plant interaction

The role of root exudates, CMNs, and VOCs in plant–plant interaction

Phytotoxic Effect of Tithonia rotundifolia (Miller) S.F.Blake on Chlorophyll and Protein Contents of Vigna unguiculata L. and Zea mays L.

Allelopathic Effects of Sheesham Extracts on Germination and Seedling Growth of Common Wheat

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