Comparison of selection indices to identify sorghum genotypes resistant to the spotted stemborer Chilo partellus (Lepidoptera: Noctuidae)

Singh, B. U.; Rao, K. V.; Sharma, H. C.

doi:10.1017/s1742758411000105

Cited by 28 publications

(19 citation statements)

References 32 publications

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“…The association between various damage traits and grain yield is useful for selecting superior genotypes. A number of parameters have been reported to be associated with resistance to spotted stem borer in sorghum because resistance is a quantitative trait and selection based on a single parameter is not efficient (Singh et al, 2011). In the present study sorghum genotypes showed difference in damage level in various damage traits and this results fall in line with findings of Sharma et al (2006) who reported a great variation in resistance levels between resistant and susceptible entries.…”

Section: Stem Tunnellingsupporting

confidence: 90%

“…In this study the entries selected as best registered lowest yield loss under infested and uninfested condition, which is on par with the resistant check, IS 2205 which was also supported by Singh et al (2011) who suggested that selection of genotypes should be based on grain yield losses under borer-infested and uninfested conditions.…”

Section: Grain Yield Performance Under Infested and Uninfested Conditionsupporting

confidence: 72%

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Evaluation of Grain Sorghum Entries against Spotted Stem Borer, Chilo partellus (Swinhoe)

Swathy

Manimegalai

2017

Madras Agricultural Journal

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Stem borers are the major pest complex contributing to yield reduction in sorghum and stem borer, Chilo partellus is the important one among them. Identification of resistant genotypes is a contributing factor for releasing new varieties. In the present study, 11 sorghum entries along with one resistant (IS 2205) and susceptible (Swarna) checks were evaluated for stem borer resistance in kharif and rabi seasons considering leaf damage, dead heart, stem tunneling, yield plant-1 and 1000 grain weight. The results revealed that sorghum entries TNS 664 and TNS 667 registered the lowest leaf damage score (2.9, 2.8 and 3.0, 3.5), dead heart (9.9%, 13.3% and 11.0%, 15.0%), stem tunnelling (5.7%, 5.1% and 6.6%, 5.5%) and yield loss (25.2%, 22.7% and 25.8%, 25.4%) and was on par with the resistant check, IS 2205 (2.3

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Section: Stem Tunnellingsupporting

confidence: 90%

Section: Grain Yield Performance Under Infested and Uninfested Conditionsupporting

confidence: 72%

Evaluation of Grain Sorghum Entries against Spotted Stem Borer, Chilo partellus (Swinhoe)

Swathy

Manimegalai

2017

Madras Agricultural Journal

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“…The application of the liquid insecticide Karate was not proved to be responsive treatment. Similar results were obtained by Singh et al [36], who reported as a precise conclusion that liquid insecticides were less efficient than granular formulations.…”

Section: Effects Of Treatments On Crop Yieldsupporting

confidence: 90%

Effectiveness of Granular and Liquid Insecticides against <i>Chilo partellus</i> on Maize in Pakistan

Khan¹,

Ain²,

Raqib³

et al. 2019

Pol. J. Environ. Stud.

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Considering the economic importance of the maize Zea mays (Poales: Poaceae) crop and the losses caused by the maize stem borer, an experiment was carried out in a plot of 15 m 2 that was equally divided into three replications using randomized complete block design to find the effect of granular and liquid insecticides on Chilo partellus and crop yield. The trial was laid out at the Agricultural Research Station in Baffa, Mansehra, Pakistan during the Kharif season 2015. In this experiment, granular insecticide Carbofuran 3G and liquid insecticides Cypermethrin10 EC, Endosulfan 35 EC, Karate 2.5 EC and Chlorpyrifos 10 EC were used for treating maize stem borer. The obtained results revealed that Carbofuran 3G proved significantly to be the most effective in reducing plant damage, the number of dead heart plants and the number of pest larvae. Additionally, the treatments caused an increase in grain yield. The liquid insecticides Cypermethrin and Karate ranked second, and Endosulfan and Chlorpyrifos ranked third in efficacy against the pest. On the basis of present findings, it was recommended that the granular form of insecticides in general and Carbofuran 3G in particular may be used for effective control of C. partellus in maize crop. The granules should be applied in plant whorls, which will give better results than application through other methods. In the case of foliar applications, Cypermethrin is recommended to get effective control among other liquid formulations. Although the chemical treatments which were used in this research gave good control of C. partellus infestations and increase in yield as compared to check, some variations still occur in the amount of damage, population density of the pest and yield of crop. These differences may be due to differences in types of treatments, methods of experimentation, and environmental factors like temperature, humidity etc.

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“…Drought tolerance was estimated based on the calculation of five different drought stress tolerance indices. Stress Susceptibility Index (SSI), Stress Tolerance Index (TOL), Modified Severity Stress Susceptibility Index (SSSI), Drought Yield Index (DYI), and Drought Tolerance Efficiency (DTE) (Fischer and Maurer, 1978;Fischer and Wood, 1981;Rosielle and Hamblin, 1981;Singh et al, 2011;Raman et al, 2012;). SSI = (1 -(Ys/Yp)) / (1 -(Ŷs/Ŷp)) Eq.1 TOL = Yp -Ys Eq.2 SSSI = (1 -(Ys/Yp)) -(1 -(Ŷs/Ŷp)) Eq.3 DYI = (Ys/Yp)/(Ŷs/Ŷp) Eq.4 DTE = (Ys / Yp) x 100 Eq.5 Yp = productivity in the control, Ys = productivity in the drought, Ŷp = mean of all varieties in the control treatment and Ŷs = mean of all varieties in the drought treatment, Eq.…”

Section: Tolerance Indices To Drought Stressmentioning

confidence: 99%

Morphological and physiological responses to drought stress in a set of Brazilian traditional upland rice varieties in post-anthesis stage

et al. 2020

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Among the abiotic stresses that can affect the growth and development of the crop, drought is considered one of the main factors that can reduce the global food production. The goal of this study was to analyze the effect of drought stress on several morphological and physiological parameters in ten traditional upland rice varieties. The experimental design set up in a factorial scheme 10 x 2 (varieties x treatments) with four replicates under greenhouse conditions. At the start of the reproductive stage, rice varieties were submitted to control and drought conditions during 30 days and evaluated for physiological and morphological parameters. Rice varieties were considered as tolerant and susceptible to drought stress based on the classification proposed by five different stress tolerance indices (SSI, TOL, SSSI, DYI and DTE). The results suggest that the adopted indices associated with multivariate analysis from the parameters analyzed are efficient to discriminate between tolerant and susceptible rice varieties to the drought stress. Catetão and Piauí were considered as the most tolerant, while Quebra Cacho and Mira were the most susceptible. The analysis of morphological and physiological parameters through multivariate analyses revealed as an important tool to assist breeders in the identification of tolerant and susceptible varieties and to characterize how the varieties alter their metabolism to withstand the drought stress.

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Comparison of selection indices to identify sorghum genotypes resistant to the spotted stemborer Chilo partellus (Lepidoptera: Noctuidae)

Cited by 28 publications

References 32 publications

Evaluation of Grain Sorghum Entries against Spotted Stem Borer, Chilo partellus (Swinhoe)

Evaluation of Grain Sorghum Entries against Spotted Stem Borer, Chilo partellus (Swinhoe)

Effectiveness of Granular and Liquid Insecticides against <i>Chilo partellus</i> on Maize in Pakistan

Morphological and physiological responses to drought stress in a set of Brazilian traditional upland rice varieties in post-anthesis stage

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