Evaluation of leguminous species as cover crops associated with sacha inchi1

Solis, Reynaldo; Pezo, Marlon; Arévalo, Luis; Lao, Ceila; Orihuela, Julio Alegre; Pérez, Kevin

doi:10.1590/1983-40632019v4958011

Cited by 4 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Conversely, rice plants can thrive and reach their maximum yield potential when weed growth is limited, inhibited or absent. Practically, A. pintoi has been reported as a promising green manure with multiple benefits comprising soil coverage and nitrogen fixation [20,21,24,25]. In addition, other studies have demonstrated that the growth and yield components of corn (Zea mays) and tomato (Solanum lycopersicum) were significantly enhanced using a living mulch of A. pintoi [51][52][53] that concurrently reduced weed growth in some tropical upland crops as well as improving soil fertility and erosion [53].…”

Section: Discussionmentioning

confidence: 99%

“…Although extensive studies on the cover crop of A. pintoi have been carried out [20,21,24,25], little work has been conducted on evaluating the allelopathic potential of this legume. Therefore, the aims of this study were (i) to assess the allelopathic activity of A. pintoi aerial parts of powder against the germination and growth of E. crus-galli and various tested plants, especially on paddy weeds through bioassays and greenhouse and field trials; (ii) to determine total phenolic and flavonoid contents and inhibitory effects from the different solvent extracts (methanol, hexane and ethyl acetate); (iii) to analyze its potential allelochemicals using gas chromatography-mass spectrometry (GC-MS).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Assessment of Allelopathic Activity of Arachis pintoi Krapov. & W.C. Greg as a Potential Source of Natural Herbicide for Paddy Rice

Thang,

Vien,

Anh

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

Pinto peanut (Arachis pintoi Krapov. & W.C. Greg.) is an herbaceous perennial plant which belongs to the Leguminosae family. This plant is well known for its use as a cover crop, but little information is available on the allelopathic potential of this legume. Therefore, this study aimed to explore the allelopathic effects of A. pintoi under various screening conditions and to analyze its potential allelochemicals using gas chromatography–mass spectrometry (GC-MS). In laboratory bioassays, aqueous extracts of A. pintoi powder exerted the average inhibition of the growth of Echinochloa crus-galli (55.1%), Oryza sativa (77.1%), and Vigna radiata (60.1%), respectively, of which the root lengths of the tested plants were the most suppressed. In greenhouse experiments, E. crus-galli was inhibited by 63.4% at 200 g/m2 of A. pintoi dried powder application. In field trials, A. pintoi also significantly reduced the growth of E. crus-galli and natural weeds. By incorporating a dose of 200 g/m2, the average inhibition of E. crus-galli was 43.9%, the dry weight of natural paddy weeds was 43.1%, and rice yield was simultaneously increased by 35%. The growth inhibitions of weeds and tested plants were proportional to the doses of A. pintoi applied and varied with the tested plant species. Among three different solvent extracts (methanol, hexane, and ethyl acetate), the hexane extract exerted the highest suppression against the growth of E. crus-galli and L. sativa by IC50 against root and shoot growth = 4.08 and 8.4 mg/mL and 1.7 and 1.54 mg/mL, respectively, followed by ethyl acetate extract, while the least effective was methanol extract. From those extracts, a total of 35 substances were detected by GC-MS analyses, including 14 newly identified constituents, such as phenolic acids, stearic acid, palmitic acid, fatty acids, pyranones, and benzofurans, which may be responsible for the herbicidal effects of A. pintoi. This study suggests that A. pintoi may be used as a source of bioherbicide to minimize the dependency on harmful synthetic herbicides and enhance rice yield.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of Allelopathic Activity of Arachis pintoi Krapov. & W.C. Greg as a Potential Source of Natural Herbicide for Paddy Rice

Thang,

Vien,

Anh

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Alegre et al (2017) reported that degraded lands with low fertility, affected by overgrazing in the humid tropics of Yurimaguas, can be recovered for sustainable production with leguminous cover crops and Multistrata Agroforestry Systems (MAS) because in a short time soil, compaction is reduced and organic matter level increased after the establishment of cover crops and trees. Furthermore, the use of leguminous cover crops influences in the increase of tropical crops yield (Solis et al, 2019).…”

Section: General Sustainabilitymentioning

confidence: 99%