Raphanus Raphanistrum Subsp. Landra (Moretti ex DC.) Bonnier &amp; Layens - Adventitious Species of Mediterranean Origin Adapted as Weed in Crops - Some Considerations on Morphological and Anatomical Peculiarities

Georgescu, Mara; Luchian, V.; Groza, Octavian; Ionescu, N.; Săvulescu, E.

doi:10.1016/j.aaspro.2016.09.035

Cited by 3 publications

(3 citation statements)

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“…These results reinforce the studies that demonstrate the greater competition capacity of the turnip compared to ryegrass (Rigoli et al, 2008;Costa & Rizzardi 2015). Characteristics such as higher leaf area, root size and volume, may contribute to this superiority of turnip in competing with the resources of the ambient (Georgescu et al, 2016).…”

Section: International Journal Of Advanced Engineering Research and Science (Ijaers)supporting

confidence: 87%

Competitive Interaction between Weeds and Onion Crop

Franceschetti¹,

Galon²,

Menegat³

et al. 2019

IJAERS

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Among the factors that affect crop productivity are weeds that compete for the resources present in the environment. Then, the objective of this study was to evaluate the competitiveness of turnip and ryegrass infesting the onion crop. The experiment was conducted in a greenhouse, in a randomized complete block design, arranged in a 2x8 factorial scheme, with four replications. In factor A, were allocated the weeds (turnip and ryegrass) and in the B, were allocated populations of these species (0, 1, 2, 3, 4, 5, 6 and 7 pot-1 plants) living with an onion plant. 50 days after transplanting, were evaluated the height, stem diameter, leaf area and dry mass of the aerial part of the onion plants. For the weeds, only the dry mass of the aer ial part was determined. In face of the results, it can be observed that the onion has a low competitive capacity, being the turnip the weed more aggressive in the competition, for all evaluated variables.

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Section: International Journal Of Advanced Engineering Research and Science (Ijaers)supporting

confidence: 87%

Competitive Interaction between Weeds and Onion Crop

Franceschetti¹,

Galon²,

Menegat³

et al. 2019

IJAERS

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“…Its high leaf area, size, length and root volume contribute to the superiority of turnip in competing with resources of the environment (water, light and nutrients). The turnip, even in low densities can cause severe losses to the crops it infests (Georgescu et al 2016). Tironi et al (2014) also observed this fact when they found shading to barley caused higher losses by turnip than by ryegrass, which reduces the productivity and the quality of the harvested product.…”

Section: Economic Threshold Level Experimentsmentioning

confidence: 93%

Journal of Plant Protection Research

Galon,

Basso,

Forte

et al. 2022

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Determination of interference periods, competitive ability and economic threshold level (ETL) are important tools for integrated weed management (IWM) in barley. The objective of the work was to determine the periods of interference, the competitive ability and the ETL of weeds in barley (Hordeum vulgare). Two field experiments were carried out, in a randomized block design, with four replications. In this study, the periods of coexistence and control for ryegrass (Lolium multiflorum) and turnip (Raphanus raphanistrum) infesting barley cultivar, cv. ANA 01 were evaluated. The coexistence periods and/or control were: 0, 7, 14, 21, 28, 35, 42 and 120 days after barley emergence (DAE). In experiment 2the treatments for determination of ETLs were composed by barley cultivars (BRS Suábia, ANA 01, BRS Korbel, BRS Manduri, BRS Cauê and BRS Greta), and turnip densities, from zero (0) to maximum densities of 816, 788, 948, 394, 584 and 618 plants • m −2 , in competition with each cultivar. Control of turnip and ryegrass should be adopted in barley in the period between 12 to 22 DAE, which is described as a critical control period. The rectangular hyperbola adequately estimates losses in grain yield due to turnip infestation. There is an effect on the competitive ability of the cultivars in relation to turnip, which resulted in ETLs that ranged from 0.27 to 1.99 plants • m −2 . The cultivars BRS Greta, BRS Suábia, ANA 01 and BRS Manduri were the most competitive in the presence of turnip.

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“…raphanistrum and R. raphanistrum subsp. landra ) [ 8 ]. Compared with cultivated radish plants, the wild radish has distinct morphological traits, including non-fleshy roots, yellow or white flowers, non-shattering mature siliques containing 1~10 seeds, and strong growth habits influencing crop yields as weeds [ 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

SSR-Sequencing Reveals the Inter- and Intraspecific Genetic Variation and Phylogenetic Relationships among an Extensive Collection of Radish (Raphanus) Germplasm Resources

Wang

Yang

et al. 2021

Biology

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Raphanus has undergone a lengthy evolutionary process and has rich diversity. However, the inter- and intraspecific phylogenetic relationships and genetic diversity of this genus are not well understood. Through SSR-sequencing and multi-analysis of 939 wild, semi-wild and cultivated accessions, we discovered that the European wild radish (EWR) population is separated from cultivated radishes and has a higher genetic diversity. Frequent intraspecific genetic exchanges occurred in the whole cultivated radish (WCR) population; there was considerable genetic differentiation within the European cultivated radish (ECR) population, which could drive radish diversity formation. Among the ECR subpopulations, European primitive cultivated radishes (EPCRs) with higher genetic diversity are most closely related to the EWR population and exhibit a gene flow with rat-tail radishes (RTRs) and black radishes (BRs)/oil radishes (ORs). Among Asian cultivated radishes (ACRs), Chinese big radishes (CBRs) with a relatively high diversity are furthest from the EWR population, and most Japanese/Korean big radishes (JKBRs) are close to CBR accessions, except for a few old Japanese landraces that are closer to the EPCR. The CBR and JKBR accessions are independent of RTR accessions; however, phylogenetic analysis indicates that the RTR is sister to the clade of CBR (including JWR), which suggests that the RTR may share the most recent common ancestry with CBRs and JWRs. In addition, Japanese wild radishes (JWRs), (namely, R. sativus forma raphanistroides) are mainly scattered between CBRs and EPCRs in PCoA analysis. Moreover, JWRs have a strong gene exchange with the JKBR, OR and RTR subpopulations. American wild radishes (AWRs) are closely related to European wild and cultivated radishes, and have a gene flow with European small radishes (ESRs), suggesting that the AWR developed from natural hybridization between the EWR and the ESR. Overall, this demonstrates that Europe was the origin center of the radish, and that Europe, South Asia and East Asia appear to have been three independent domestication centers. The EPCR, AWR and JWR, as semi-wild populations, might have played indispensable transitional roles in radish evolution. Our study provides new perspectives into the origin, evolution and genetic diversity of Raphanus and facilitates the conservation and exploitation of radish germplasm resources.

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Raphanus Raphanistrum Subsp. Landra (Moretti ex DC.) Bonnier & Layens - Adventitious Species of Mediterranean Origin Adapted as Weed in Crops - Some Considerations on Morphological and Anatomical Peculiarities

Cited by 3 publications

References 4 publications

Competitive Interaction between Weeds and Onion Crop

Competitive Interaction between Weeds and Onion Crop

Journal of Plant Protection Research

SSR-Sequencing Reveals the Inter- and Intraspecific Genetic Variation and Phylogenetic Relationships among an Extensive Collection of Radish (Raphanus) Germplasm Resources

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