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Bibliographic Data
Control Number55895
Date and Time of Latest Transaction20060619141907.5
General Information060619s |||||||||b ||00|||
Cataloging SourcePCARRD-DOST
Main Entry - Personal NameAdalla, Candida B.
Main Entry - Uniform TitleENGLISH
Title StatementInsect resistance: wheat varietal improvement
General NoteCollege, Laguna: UPLB, 1988. 23p. -(UPLB-PCARRD- ASSP Proj. No. 89-298-21; Study 6)
Summary, Etc.The field reaction of wheat accessions to major insect pests was studied for five years at the UPLB Central Experiment Station. The most common pests observed were seedling maggot, semi-looper, leaf miner and earworm. Insect pest density was low during early seedling stage. It increased gradually and peaked 65 DAE (days after emergence), then decreased as the crop matured. The population peak coincided with the mid-vegetative and early reproductive stages of wheat. Confirmatory cage tests also evaluated the resistance of selected promising lines to earworm by sowing test seeds in a 1 m row, replicated thrice, after which, earworm adults reared in the laboratory were released at the crop fruiting stage. Different responses of the test lines were observed. The population of the insect pests, except that of the leaf miners were generally low. There were no significant differences in the yield obtained in all treatments
Subject Added Entry - Topical TermWHEATS
 RESISTANCE TO INJURIOUS FACTORS
 PEST INSECTS
Added Entry - Personal NameCervancia, Cleofas R.
LocationDOST PCARRD
  
     
 
Physical Location
Department of Science and Technology
Philippine Council for Agriculture, Forestry and Natural Resources Research and Development
  
     
 
Digital Copy
Not Available
  
     
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