Rapid phenotyping for identification of rice resistant varieties to <i>Diopsis apicalis</i> (Diptera: Diopsidae) Westwood

Bocco, Roland; Bernard, Gandonou Christophe; Pierre-Louis, Amoussou; Togola, Abou; Dieng, Ibnou; Noelle, Ndjiondjop Marie; Abdoulaye, Seck Pape; Tamò, Manuele

doi:10.1080/23312025.2019.1649851

Cited by 5 publications

(4 citation statements)

References 34 publications

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“…This explains why CG14 is attractive to SEF. These results suggest that CG14 can be considered as a trap variety by attracting SEF females to lay down their eggs; however, some early studies under eld and semi-controlled conditions identi ed the variety as resistant to SEF (Togola et al 2011;Bocco et al 2017;Bocco et al 2019). This nding suggests that CG14 could be considered as a trap variety by attracting SEF females to lay their eggs.…”

Section: Discussionmentioning

confidence: 96%

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Characterization of Rice Accessions using Info-chemical and Visual Cues Emitted to Biologically Control Diopsis apicalis Dalman

Bocco,

Pegalepo,

Tamò

et al. 2024

Preprint

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This study assessed the host plant selection behavior of female stalk-eyed flies (SEF) or Diopsis apicalis, where a Y-tube olfactometer was used to compare the attractiveness of SEF to the odor of leaves from four rice varieties (ITA306, WAB56-104, CG14, and RAM55). Another step of the evaluation consisted of pairing leaf odors from two rice varieties. Also, potted plants of the tested varieties were displayed in a screened cage and submitted to SEF female selection. Results showed that the odor produced by leaves from rice varieties CG14, WAB56-104, and ITA306 significantly attracted SEF with 81%, 70%, and 97%, respectively, while SEF females were rarely attracted by the odor of leaves from the resistant rice variety RAM55 with 35%. Results suggested that the use of a Y-tube olfactometer was similar to that obtained in the case of a screened cage. Resistance exhibited by rice variety CG14 against SEF is related to an antibiosis mechanism, while that in RAM55 is an antixenosis one. The authors recommend CG14 and RAM55 as candidates for breeding to create resistant lines against SEF.

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Section: Discussionmentioning

confidence: 96%

“…This may support the preference of females for ITA306 and WAB56-104 leaves instead of RAM55. The resistance in CG14 mentioned byTogola et al 2010 andBocco et al 2019 after screening must be considered as its inability to provide survival to the insect offspring. The current research did not determine and evaluate the compound contents of CG14.…”

mentioning

confidence: 99%

Characterization of Rice Accessions using Info-chemical and Visual Cues Emitted to Biologically Control Diopsis apicalis Dalman

Bocco,

Pegalepo,

Tamò

et al. 2024

Preprint

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“…In Western Africa, rice is a crucial food security staple [ 1 , 2 ]. Due to population expansion, urbanization, and rising demand, rice consumption in this region has rapidly expanded [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Field Evaluation of Rice Lines Derived from Suakoko 8 X Bao Thai for Iron Tolerance in the South Saharan African Farming System

Sikirou,

Shittu,

Moukoumbi

et al. 2024

Plants

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Rice is a major grain crop in numerous countries. In lowland areas, high iron levels in the soil severely hinder its cultivation. The current study explored high-yielding and Fe-toxicity-tolerant irrigated lowland rice (340 lines) among a population derived from a cross between Suakoko 8 and Bao Thai in Edozighi and Ibadan, Nigeria. In contrast to Ibadan, the soils in Edozighi contain a significant amount of iron. For the stated purpose, we carried out a two-year experiment using an alpha lattice design. The data showed significant differences between genotypes for the days to heading, plant height, number of tillers per plant, number of panicles per plant, panicle length, and grain yield. The results revealed that multiple characteristics had both direct and indirect effects on cultivated rice yields. There was a direct and positive influence on the number of days in the 50% heading period (0.31), a direct and negative effect on plant height (−0.94), a direct and positive effect on tiller and panicle numbers, and a direct but negative effect on panicle length (−0.56). The leaf bronzing score was adversely correlated with yield, panicle length, and plant height, while it was positively correlated with the number of panicles, tillers, and days to heading. The findings showed significant changes in yield and yield characteristics between genotypes. Grain yields ranged from 283 to 11,700 kg/ha in the absence of iron in the soil, contrary to 0 to 8230 kg/ha in soil with iron toxicity, with losses estimated between 6 and 94%, demonstrating the resulting disaster. In contrast to the elite parents and varieties used in this study, the ten top genotypes exhibited smaller losses in yield. The authors strongly recommend using these lines for further studies as donors or releasing them in farmer fields in Africa.

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“…Screening for rice stem borer ‘resistance’ at national and international (e.g., CGIAR) institutes has been influenced by rapid assessment methods such as the standard evaluation system (SES) that grades damage to rice seedlings or young, tillering plants in stem borer-infested screen cages (Heinrichs. 1985; Togola et al, 2011 ; Roland et al, 2019 ). To date, most rice phenotyping studies have focused on only one stemborer species (i.e., 74% of 207 papers, usually with Chilo suppressalis : Horgan, unpublished).…”

Section: Introductionmentioning

confidence: 99%

Stem borers revisited: Host resistance, tolerance, and vulnerability determine levels of field damage from a complex of Asian rice stemborers

et al. 2021

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Yield losses from rice stem borers depend on the nature of the rice variety, the timing of attack, and the composition of the stem borer species assemblage. This study uses a range of phenotyping methods to distinguish different categories of herbivore-rice interaction that determine relative damage levels (dead heart and whitehead-panicles) and yield losses to varieties exposed to stem borers. Phenotyping studies were conducted in a greenhouse, screen house and field using two stem borer species ( Scirpophaga incertulas [yellow stem borer - YSB] and Chilo suppressalis [striped stem borer - SSB]) and 12 rice lines. Only YSB displayed oviposition preferences across rice varieties. Both stem borer species performed better (greater survival, shorter development times, heavier pupae) on rice at vegetative compared to reproductive growth stages, and SSB was less capable than YSB of developing on rice at reproductive growth stages. Stem borer larval survival, body weight, development time, and tiller damage across different rice varieties in greenhouse experiments was poorly correlated between the two stem borer species and for each of the species on rice at two different plant growth stages (vegetative and reproductive). In contrast, rice tillering and yield responses to the two stem borer species were often highly correlated, but only when plants were attacked at the reproductive stage. Short-term, controlled experiments revealed aspects of host resistance and relative changes in plant biomass and yield in response to damage (condition change). However, the results from controlled environments and field-plots were not generally correlated because plant vulnerability, i.e., relative exposure to stem borer attack due to crop duration, largely determined field damage. We recommend that phenotyping studies should differentiate between the resistance, tolerance and vulnerability of rice lines to complexes of stem borers in a given region. Single stem borer species experiments under controlled environments are useful to gain knowledge of the nature of rice-stem borer interactions; however, field testing with comparative treatments, particularly under high soil fertilizer levels that increase plant attractiveness, are better for assessing the relative propensities of rice varieties to incur damage and yield losses due to complexes of stem borers.

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Rapid phenotyping for identification of rice resistant varieties to Diopsis apicalis (Diptera: Diopsidae) Westwood

Cited by 5 publications

References 34 publications

Characterization of Rice Accessions using Info-chemical and Visual Cues Emitted to Biologically Control Diopsis apicalis Dalman

Characterization of Rice Accessions using Info-chemical and Visual Cues Emitted to Biologically Control Diopsis apicalis Dalman

Field Evaluation of Rice Lines Derived from Suakoko 8 X Bao Thai for Iron Tolerance in the South Saharan African Farming System

Stem borers revisited: Host resistance, tolerance, and vulnerability determine levels of field damage from a complex of Asian rice stemborers

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