Temporal expression of the sor1 gene and inhibitory effects of Sorghum bicolor L. Moench on three weed species

Santos, Roseane Cavalcanti dos; Ferraz, Gabriela de Morais Guerra; Albuquerque, Manoel Bandeira de; Lima, Liziane Maria de; Filho, Péricles de Albuquerque Melo; Ramos, Alessandra de Rezende

doi:10.1590/0102-33062014abb3238

Cited by 7 publications

(4 citation statements)

References 30 publications

(44 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The SOR1 gene is responsible for sorgoleone production; it was reported that its higher transcript levels were observed from different root, stem and leaves of sorghum [ 43 ]. It was further confirmed from another study that showed that the higher expression of SOR1 resulted in weed suppression, and additionally the intercropping of sorghum and wheat exhibited no deleterious effect on cotton [ 82 ].…”

Section: Sorghum Allelopathy and Sustainable Weed Managementmentioning

confidence: 81%

See 1 more Smart Citation

Unraveling Sorghum Allelopathy in Agriculture: Concepts and Implications

Hussain

Danish

Sánchez‐Moreiras

et al. 2021

Plants

View full text Add to dashboard Cite

Allelopathy is an ecological phenomenon that involves the production and release of biomolecules from different crops, cultivated plants, and bacteria or fungi into the soil rhizosphere and impacts other organisms in the vicinity. Sorghum possesses vital allelopathic characteristics due to which it produces and releases different biomolecules from its root hairs, stems, and grains. Several studies have reported that sorghum acts as an allelopathic crop, decreasing the growth and eco-physiological attributes of surrounding plants and weeds growing simultaneously or subsequently in the field. Sorghum allelopathy has been exploited in the context of green manure, crop rotations, cover crops, and intercropping or mulching, whereas plant aqueous extracts or powder might be an alternate method of weed control. A diverse group of allelochemicals, including benzoic acid, p-hydroxybenzoic acid, vanillic acid, ferulic acid, chlorogenic acid, m-coumaric acid, p-coumaric acid, gallic acid, caffeic acid, p-hydroxibenzaldehyde, dhurrin, sorgoleone, m-hydroxybenzoic acid and protocatechuic acid, have been isolated and identified from different plant tissues of sorghum and root exudates. These allelochemicals, especially sorgoleone, have been investigated in terms of their mode(s) of action, specific activity and selectivity, release in the rhizosphere and uptake and translocation in sensitive species. The present review describes the importance of sorghum allelopathy as an ecological tool in managing weeds, highlighting the most recent advances in the allelochemicals present in sorghum, their modes of action, and their fate in the ecosystem. Further research should focus on the evaluation and selection of sorghum cultivars with high allelopathic potential, so that sorghum allelopathy can be better utilized for weed control and yield enhancement.

show abstract

Section: Sorghum Allelopathy and Sustainable Weed Managementmentioning

confidence: 81%

“…The plant biomass (roots and shoots dry weight) of spiny sandbur ( Cenchrus echinatus ) and Bermuda grass (Cynodon dactylon) was highly decreased. However, it is important to mention that the cotton intercropping with S. bicolor did not show any negative effects [ 82 ].…”

Section: Introductionmentioning

confidence: 99%

Unraveling Sorghum Allelopathy in Agriculture: Concepts and Implications

Hussain

Danish

Sánchez‐Moreiras

et al. 2021

Plants

View full text Add to dashboard Cite

show abstract

“…Among cultivated crops, sorghum species are extensively studied for their allelopathic potential and characterization of allelochemicals associated with weed suppression [102,103]. Several studies have indicated that intercropping sorghum with crops provides better weed control and higher yields than their monocrops [104][105][106]. Allelopathy is also associated with other field crops such as corn [107,108], oats (Avena sativa L.), pearl millet (Pennisetum glaucum L.), sesame (Sesamum indicum L.) [109], sunflower [104], and soybean [110].…”

Section: Intercroppingmentioning

confidence: 99%

Crop Diversification for Improved Weed Management: A Review

et al. 2021

View full text Add to dashboard Cite

Weeds are among the major constraints to any crop production system, reducing productivity and profitability. Herbicides are among the most effective methods to control weeds, and reliance on herbicides for weed control has increased significantly with the advent of herbicide-resistant crops. Unfortunately, over-reliance on herbicides leads to environmental-health issues and herbicide-resistant weeds, causing human health and ecological concerns. Crop diversification can help manage weeds sustainably in major crop production systems. It acts as an organizing principle under which technological innovations and ecological insights can be combined to manage weeds sustainably. Diversified cropping can be defined as the conscious inclusion of functional biodiversity at temporal and/or spatial levels to improve the productivity and stability of ecosystem services. Crop diversification helps to reduce weed density by negatively impacting weed seed germination and weed growth. Additionally, diversified farming systems are more resilient to climate change than monoculture systems and provide better crop yield. However, there are a few challenges to adopting a diversified cropping system, ranging from technology innovations, government policies, farm-level decisions, climate change, and market conditions. In this review, we discuss how crop diversification supports sustainable weed management, the challenges associated with it, and the future of weed management with respect to the diversification concept.

show abstract

“…According to Santos et al (2014), although S. bicolor is considered a species that has an allelopathic effect, its toxic effect is not the same for different crops because it depends on many factors such as genotype, concentration, plant density, fertility, and soil moisture. However, the effectiveness of control against some weeds may not occur immediately, such as that of commercial herbicides, but could be built over time, as with most natural products (Belz, 2007).…”

Section: Introductionmentioning

confidence: 99%

Allelopathic Potential of Sorghum bicolor at Different Phenological Stages

et al. 2019

View full text Add to dashboard Cite

This study aimed to assess the allelopathic potential of the aqueous extract of the shoot of Sorghum bicolor at different phenological stages on seed germination and initial growth of kale (Brassica oleracea var. acephala) seedlings, which is considered a bioindicator species. The experiment was carried out at five development stages of S. bicolor (40, 50, 60, 70, and 80 days after emergence), which was used as aqueous extract at six concentrations (0, 20, 40, 60, 80, and 100%) applied in four replications per treatment in 10 or 50 kale seeds per plot. The percentage of germination, germination rate index, root growth, shoot length, and dry matter of kale seedlings were analyzed in the presence of this extract on different days of collection and concentrations. The aqueous extract of S. bicolor presented an allelopathic effect on germination and initial growth of kale seeds, with a higher inhibitory effect when more concentrated extracts from pre-flowering plants were used, which corresponds to 60 days after emergence. Thus, this stage should be recommended in the use of S. bicolor straw to help in controlling weeds.

show abstract

Temporal expression of the sor1 gene and inhibitory effects of Sorghum bicolor L. Moench on three weed species

Cited by 7 publications

References 30 publications

Unraveling Sorghum Allelopathy in Agriculture: Concepts and Implications

Unraveling Sorghum Allelopathy in Agriculture: Concepts and Implications

Crop Diversification for Improved Weed Management: A Review

Allelopathic Potential of Sorghum bicolor at Different Phenological Stages

Contact Info

Product

Resources

About