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3 edition of Techniques to screen sorghums for resistance to insect pests found in the catalog.

Techniques to screen sorghums for resistance to insect pests

Techniques to screen sorghums for resistance to insect pests

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  • 34 Currently reading

Published by International Crops Research Institute for the Semi-arid Tropics in Patancheru, Andhra Pradesh, India .
Written in English

    Subjects:
  • Sorghum -- Diseases and pests.,
  • Insect pests -- Control.

  • Edition Notes

    Bibliography: p.46-8.

    StatementH. C. Sharma...[et al.].
    SeriesInformation bulletin -- no.32
    ContributionsSharma, H. C. 1939-, International Crops Research Institute for the Semi-arid Tropics.
    The Physical Object
    Paginationv,48p. :
    Number of Pages48
    ID Numbers
    Open LibraryOL17430373M
    ISBN 109290662131
    OCLC/WorldCa26059443

    Varietal resistance to Contarinia sorghicola was investigated in the field in up to 38 varieties in (17 varieies common to all years) by calculating the percentage of damaged grains and in by a simplified method involving a visual rating of midge damage on panicles. The correlation between the results from each method was significant (r = ).Author: T. Hagio, S. Ono. Botanicals to Cope Stored Grain Insect Pests: A Review Manohar Lal1, Budhi Ram2 and Prabhat Tiwari3* 1Departement of Seed Science and Technology, Dr. YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP) , India 2Departement of Entomology, Dr. YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP) , India. Department of Entomology W. Waters Hall Old Claflin Place Kansas State University Manhattan KS fax [email protected]   Thirty-five grain sorghum genotypes representing 6 variable groups (A/B-lines, R-lines, commercial varieties, germplasms, mutants and locals) were evaluated for the orientation, colonisation and oviposition responses of the rice weevil, Sitophilus oryzae (L.) (Coleoptera: Curculionidae), governing the antixenosis component of resistance. In free-choice tests, the Cited by: 6.


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Techniques to screen sorghums for resistance to insect pests Download PDF EPUB FB2

Get this from a library. Techniques to screen sorghums for resistance to insect pests. [H C Sharma;]. exercise to screen the sorghum germplasm collection for resistance to the key sorghum pests such as sorghum shoot fl y, Techniques to screen sorghums for resistance to insect pests book stem borer, sorghum midge and head bugs.

A brief description of the biology, nature of damage by the target insect pests, and the techniques followed to evaluate for resistance to these insect species are described below.

Techniques to screen sorghums for resistance to insect pests. / Sharma, H.C. Sharma, H.C., Taneja, S.L., Leuschner, K., and Nwanze, K.F. Techniques to screen sorghums for resistance to insect pests. are the major pests worldwide.

This bulletin describes techniques to screen for resistance under choice (field) and no-choice (cage. In book: Experimental Techniques in Host-Plant Resistance, pp Screening techniques for different insect pests in crop plants regional agricultural Research Station (ANGRAU.

Culti vars with a lo w to moderate lev el of resistance to insect pests have been identifi ed in pigeonpea, chickpea, cowpea, blackgram, greengram, and fi eldpea (Sharma et al. The screening techniques range from seedling stage greenhouse evaluation using artificial infestations to field evaluations at different plant growth stages, using natural and artificial infestations (Table ).Promising sources of resistance to key pests were identified in the world germplasm under both natural and artificial infestation conditions, and efforts were made to Author: P.G.

Padmaja, C. Aruna. Techniques to screen for resistance to insect pests 1. Techniques to Screen for Resistance to Insect Pests Sorghum, pearl millet, chickpea, pigeonpea and groundnut are the most important crops in the semi-arid tropics.

Development and standardization of screening techniques is pre-requisite for effective resistance breeding programme Among several techniques, majority of screening is carried out Techniques to screen sorghums for resistance to insect pests book field condition Under field condition, resistance is measured based on both plant damage and insect responses.

Thanks. Insect pests are responsible for substantial crop losses worldwide through direct damage and transmission of plant diseases, and novel approaches that complement or replace broad-spectrum chemical insecticides will facilitate the sustainable intensification of food production in the coming decades.

Multiple strategies for improved crop resistance to insect pests, Cited by: A large proportion of the world sorghum germplasm collection has been evaluated for resistance to insect pests, and a number of resistant lines have been identified ().Much progress has also been made in understanding the genetics and mechanisms of resistance to important pests of sorghum, that is, shoot fly, spotted stemborer, sorghum midge, and head bug, Calocoris Author: P.G.

Padmaja. To address the Techniques to screen sorghums for resistance to insect pests book of pests, the first step towards insect resistance in sorghum was attempted by Gray et al., () where they tried to introduce cry1Ab. Many of the book's references Techniques to screen sorghums for resistance to insect pests book never before appeared in a volume on this subject.

The authors systematically discuss techniques used to evaluate different types of insect behavior and plant morphological and phytochemical factors responsible for plant resistance and susceptibility to.

Sorghum Insect Pests. The greenbug is the most important insect pest of grain and forage sorghums in Nebraska. Although their numbers fluctuate from year to year, greenbugs are a limiting factor to sorghum yield in most years.

The greenbug's ability to evolve populations capable of overcoming plant resistance and organophosphate. Annual losses due to insect pests in sorghum have been estimated to be over $ million in the SAT. Host plant resistance Techniques to screen for resistance to insect pests. The ability to develop insect-resistant cultivars, use of marker-assisted selection, and development of transgenic plants with insect resistance depends on the precision of.

Techniques to screen sorghums for resistance to insect pests (pp. 31–49). Technical Report. Technical Report. International Crops Author: K. Jagadish, Ranvir Singh, Pritha Ghosh, Korrakot Domkak. resistance is one of the most effective means of controlling insect pests in sorghum.

ICRISAT ho accessions of the sorghum germplasm from all over the world. Therefore, extensive screening of the sorghum germplasm was undertaken, and several stable sources of resistance to the key insect pests have been identified.

Techniques for Evaluating Insect Resistance in Crop Plants 1st Edition by Charles M. Smith (Author), Z. Khan (Author), Mano Dutta Pathak (Author) & ISBN ISBN Why is ISBN important. ISBN. This bar-code number lets you verify that you're getting exactly the right version or edition of a book.

Cited by: Sorghum research and development network for Asia: report of the Consultative Meeting to Consider the Establishment of a Sorghum Research and Development Network for Asia, ICRISAT, Patancheru, Andhra Pradesh, India, Sep / Alagarswamy, G.

Annual losses in grain production attributed to four major insect pests (shootfly, stem borers, midge and head bugs) are estimated at $1, million in Africa and Asia alone. Integrated pest management (IPM) strategies for these insects have been poorly focused. There is little scope for chemical insecticides in sorghum production in sub-Saharan Africa.

Abstract. The development and deployment of crop varieties defended or tolerant against insect attack is a major tactic in pest management. In agricultural terms, plant resistance to insects is a property that enables a plant to avoid, tolerate, or recover from the injurious effects of insect feeding and by: Insect Pests of Field Crops Chris C.

Burkhardt Professor of Entomology SECTION I - Principles of Field Crop Insect Control Present-day insect problems, created or aggravated by the concentrations of host plants, are diverse and complex and without simple solutions.

Farmers and ranchers must follow the instructions and advice of competent fieldmen. Pest Resistance to Pesticides and Control Measures KPS Resistance to chemical treatments in insect pests of stored grain and its management P.J. Collins1 1 Department of Primary Industries and Fisheries.

80 Meiers Road, Indooroopilly QLDAustralia. Fax: 61 7 [email protected] Abstract. management of insect pests of grain sorghum in Arkansas. Emphasis has been placed on the major insect pests and their management.

Additional insects, now considered to be minor pests, may pose greater threats in future years. Also, new species may migrate into the state. Thus, continual research is needed to identify these changes and develop. In several cereal and forage crops. host plant resistance to insects (PR!) has been an extremely successful technique for suppressing pest populations or damage.

In contrast, there has been much less use of this method for the management of insect pests in commercial vegetable production (Smith ). Insect-resistant crop varieties offer the promise of environmentally compatible pest management and inexpensive crop insurance for resource-poor farmers.

The research proposed here will add to our knowledge of the plant traits conferring resistance to the major insect pests of potato and will contribute to efforts to make resistant varieties available to potato farmers world.

Crop Resistance to Insect Pests Robert J. Lamb Cereal Research Centre Winnipeg, MB, R3T 2M9. What is crop resistance. • The use of heritable plant traits to reduce plant damage resulting from insect herbivory • Crop resistance is a relative phenomenon,File Size: KB. Insecticide resistance is independent of greenbug biotypes, which are defined by the reactions of specific sorghum varieties to greenbug feeding.

Resistance management refers to strategies for mitigating the development of resistance in insect populations to ensure the continued efficacy of registered insecticides. To ensure that such resistance is broad based, it is necessary to test the material under various levels of insect infestation and under different environmental conditions.

The Sorghum Insect -Pest Resistance Testing Program is a team effort under AICSIP aimed at: • to identify stable and effective resistance sources to insect pests.

Study: GM Crops, Touted For Pest Resistance, Rapidly Breed Resistant Pests Genetically modified crops are controversial because of everything from environmental to. management practices. Preventing insect problems in stored grain requires 3 steps: 1) sanitation, 2) protection and 3) inspection.

SANITATION Stored grain insect infestations rarely begin in the field. Most develop from small numbers of pests already present in or around farm storage bins. An effective sanitation program canFile Size: KB.

Overview of insect pest management in sorghum Sorghum is susceptible to insect pests from emergence to late grain fill. Early sorghum pests include armyworms and soil insects. These pests are normally present in a grain sorghum crop in low File Size: 1MB.

The main insect pests identified through monitoring in WK were, in order of economic importance; midge, shoot fly, stem borers, and Helicoverpa spp. In EK the order was stem borer, followed by shoot fly, chafer grub, aphids, head bugs, helicoverpa spp and army worm.

Two main pest management strategies, varietal resistance and low cost. Chemical Management Methods. Insecticides are chemicals that kill insects. They are powerful tools for controlling insect pests of sorghum.

Their major advantage is that they are the only practical control for insect pests at or approaching economically damaging abundance levels. Insecticides kill rapidly and are easy to apply.

Start studying Chapter 14 Plant Breeding (Breeding for Resistance to Diseases and Insect Pests). Learn vocabulary, terms, and more with flashcards, games, and other study tools. pests gain access to them. Storage pests often go unnoticed because they infest items that are not regularly used and they may be very small in size.

Infestations are noticed when the pests emerge from storage, to disperse or sometimes as a result of crowding or after having exhausted a particular food source, and search for new sources of food andFile Size: 1MB.

Breeding and Selecting Crops for Insect Pest Resistance January - December   Target site resistance involves mutations leading to well-defined target site alteration and resistance to chemical insecticides.

Metabolic resistance, on the other hand, involves more subtle alterations in the expression of a complex array of enzymes and detoxification pathways [ 7, 40 ], the mechanisms of which are far less well by: legume crops: Elaborative studies on host plant resistance to insect pest in pulse crops are restricted to few important pulse crops only viz., pigeonpea, cowpea, chickpea and soybean only.

A few attempts have been made in mungbean and urdbean. Resistance breeding programmes are in progress for only a few pests because of the difficulties involvedFile Size: KB. monitoring for insect pests and use of insecticides when pest populations exceed treatment thresholds. General Management Rotate crops.

Rotation will help minimize the buildup of sorghum pests in the same field. Select proper hybrids. Plant well-adapted, vigorous, high-yielding hybrids with good disease resistance and standability.

Maintain. Progress 06/11/03 to 02/29/08 Outputs Progress Report Objectives (from AD) Identify new sources of genetic resistance to insect pests (Russian wheat aphid, greenbug, and bird cherry-oat aphid) in wheat, barley, sorghum, and related species; determine the genetic diversity and genetic control of resistance to insect pests in wheat, barley, and sorghum; develop improved wheat.

Cultural Management Methods Crop production practices may enhance or suppress survival, abundance, and severity of pdf of sorghum insect pests. These practices can be used to avoid conditions that favor insect pests or activate conditions detrimental to an increase in insect pest abundance or damage.Management of Stored Grain Insect Pests at Farm Level: Challenge • Cereals like wheat, rice and maize download pdf heavily damaged by different insect pests.

This loss is more severe when these commodities are stored for longer period. • Small farmers had been controlling those though conventional methods along with using pesticides.It has been estimated ebook between one quarter and one third of the world grain crop is lost each year during ebook.

Much of this is due to insect attack. In addition, grain which is not lost is severely reduced in quality by insect damage.

Many grain pests preferentially eat out grain embryos, thereby reducing the protein content of feed grain and lowering the percentage of .