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Morphological traits of wheat (Triticum aestivum L.) associated with resistance to shoot fly,Atherigona approximata Malloch |
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| Institution: | 1. Department of Agricultural Entomology, University of Agricultural Sciences Dharwad, Karnataka, India;2. Department of Entomology, University of Agricultural Sciences, Bengaluru, Karnataka 560065, India;3. Department of Genetics and Plant Breeding, University of Agricultural Sciences Dharwad, Karnataka, India |
| Abstract: | Shoot flies (Atherigona spp.) are the members of muscidae family which have got economic importance as pest of several crops of Gramineae family mostly cereals and millets. One of the most effective management strategies for controlling shoot fly is the use of resistant wheat cultivars carrying specific resistant traits. Among thirty wheat genotypes screened at the University of Agricultural Sciences, Dharwad-Karnataka (India), two advanced germplasms UAS BW-12417 and UAS BW-11110 recorded least oviposition and dead heart due to shoot fly and found to be less preferred by Atherigona approximata Malloch. The morphological traits of different wheat genotypes revealed a significant negative correlation of shoot fly oviposition and dead heart with leaf length, leaf length to breadth ratio, seedling height, average seedling growth rate, seedling vigour, leaf glossiness and trichome density of wheat leaves, which indicated the enhanced shoot fly infestation as decrease in the values of above-mentioned morphological traits. Meanwhile, increase in leaf breadth and leaf area of wheat genotype aggrandised the oviposition and dead heart damage by shoot fly. Under the changing climate where, the minor insect pests attaining major pest status, the present investigation would pave way for breeders to tailor future breeding programmes to evolve shoot fly resistant hybrids with high yielding traits. |
| Keywords: | Biophysical traits Dead heart Germplasms Oviposition AESA"} {"#name":"keyword" "$":{"id":"k0035"} "$$":[{"#name":"text" "_":"Ecologically sustainable Agro-Eco System Analysis IPM"} {"#name":"keyword" "$":{"id":"k0045"} "$$":[{"#name":"text" "_":"Integrated Pest Management DAS"} {"#name":"keyword" "$":{"id":"k0055"} "$$":[{"#name":"text" "_":"Days after spraying DAE"} {"#name":"keyword" "$":{"id":"k0065"} "$$":[{"#name":"text" "_":"Days after emergence m ha"} {"#name":"keyword" "$":{"id":"k0075"} "$$":[{"#name":"text" "_":"Million hectare q"} {"#name":"keyword" "$":{"id":"k0085"} "$$":[{"#name":"text" "_":"Quintal CD"} {"#name":"keyword" "$":{"id":"k0095"} "$$":[{"#name":"text" "_":"Critical difference CV"} {"#name":"keyword" "$":{"id":"k0105"} "$$":[{"#name":"text" "_":"Co-efficient of variation kg"} {"#name":"keyword" "$":{"id":"k0115"} "$$":[{"#name":"text" "_":"Kilogram ml"} {"#name":"keyword" "$":{"id":"k0125"} "$$":[{"#name":"text" "_":"Milliliter mm"} {"#name":"keyword" "$":{"id":"k0135"} "$$":[{"#name":"text" "_":"Millimeter NS"} {"#name":"keyword" "$":{"id":"k0145"} "$$":[{"#name":"text" "_":"Non-significant S Em"} {"#name":"keyword" "$":{"id":"k0155"} "$$":[{"#name":"text" "_":"Standard error of mean G"} {"#name":"keyword" "$":{"id":"k0165"} "$$":[{"#name":"text" "_":"Granules EC"} {"#name":"keyword" "$":{"id":"k0175"} "$$":[{"#name":"text" "_":"Emulsifiable concentrate ppm"} {"#name":"keyword" "$":{"id":"k0185"} "$$":[{"#name":"text" "_":"Parts per million SG"} {"#name":"keyword" "$":{"id":"k0195"} "$$":[{"#name":"text" "_":"Soluble granules FS"} {"#name":"keyword" "$":{"id":"k0205"} "$$":[{"#name":"text" "_":"Flowable concentrate |
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