NDLI: Farmer participatory evaluation confirms higher grain yields in spring wheat using a selection index for spot blotch resistance, maturity and kernel weight

Content Provider	Springer Nature Link
Author	Sharma, Ram C. Duveiller, Etienne
Copyright Year	2006
Abstract	Wheat (Triticum aestivum L.) cultivars for the warm regions of South Asia must produce high yields and possess resistance to spot blotch (Cochliobolus sativus), early maturity and high kernel weight. A study was conducted to determine the effectiveness of selecting for high grain yield based on a selection index for spot blotch resistance, maturity and kernel weight in four wheat crosses involving a susceptible cultivar and resistant genotypes. Initial selection of 40 progeny lines in each cross had been made using a selection index based on disease severity, days to heading and kernel weight as reported by Sharma and Duveiller [{Crop Sci 43 (2003) 2031}]. The five highest grain-yielding progeny lines from among the 40 lines in each cross, their parents and five popular commercial cultivars were evaluated in field trials at two sites in Nepal in the 2002 and 2003 wheat seasons. Multiple spot blotch assessments were made to determine the area under disease progress curve (AUDPC). Grain yield, thousand-kernel weight (TKW), days to heading and plant height were examined. The wheat genotypes in the farmer's field were also ranked on the basis of cultivar preference criteria by the local farmers. The 20 progeny lines always showed a higher (+11 to +125%) grain yield and heavier (+10 to +44%) kernels than their parents and a lower (−83 to −89%) AUDPC than the susceptible parent. The progeny lines showed 98–100% grain yield, 97–100% TKW and 66–78% AUDPC compared to the highest grain-yielding commercial cultivar. Based on the farmers' preference criteria for a desirable wheat genotype, the best progeny lines ranked from 3rd to 5th, whereas the two commercial cultivars ranked 1st (Gautam) and 2nd (BL 1473). Results indicated that selection was effective in combining adaptation genes present in a local cultivar with some level of tolerance to spot blotch and resistance genes from exotic genotypes, which translated into improved agronomic performance and disease resistance. The selection index and farmer participatory approach used in this study could serve as a guideline in breeding efforts targeted for high yielding genotypes for wheat-growing conditions in South Asia where spot blotch is a serious biotic constraint to yield.
Starting Page	307
Ending Page	317
Page Count	11
File Format	PDF
ISSN	00142336
Journal	Euphytica
Volume Number	150
Issue Number	3
e-ISSN	15735060
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-06-15
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bipolaris sorokiniana Cochliobolus sativus Farmer participatory research Foliar blight Resistance Spot blotch Triticum aestivum wheat Plant Physiology Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Horticulture Agronomy and Crop Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Inheritance of resistance to spot blotch caused by Bipolaris sorokiniana in spring wheat

Heritability estimates of spot blotch resistance and its association with other traits in spring wheat crosses

Stay green trait: variation, inheritance and its association with spot blotch resistance in spring wheat (Triticum aestivum L.)

Pathogenicity of Bipolaris sorokiniana isolates from wheat roots, leaves and grains in Mexico

The effect of spot blotch and heat stress on variation of canopy temperature depression, chlorophyll fluorescence and chlorophyll content of hexaploid wheat genotypes

Heritability estimates of field resistance to spot blotch in four spring wheat crosses

Genetics Of Resistance To Spot Blotch (Bipolaris Sorokiniana Sacc. In Borok, Shoem.) In Wheat (Triticum Aestivum L.Em. Thell.)

Bipolaris sorokiniana-Induced Black Point, Common Root Rot, and Spot Blotch Diseases of Wheat: A Review

Barley mutants with enhanced level of resistance to Swedish isolates ofBipolaris sorokiniana, casual agent of spot blotch

Farmer participatory evaluation confirms higher grain yields in spring wheat using a selection index for spot blotch resistance, maturity and kernel weight

Similar Documents

Inheritance of resistance to spot blotch caused by Bipolaris sorokiniana in spring wheat

Heritability estimates of spot blotch resistance and its association with other traits in spring wheat crosses

Stay green trait: variation, inheritance and its association with spot blotch resistance in spring wheat (Triticum aestivum L.)

Pathogenicity of Bipolaris sorokiniana isolates from wheat roots, leaves and grains in Mexico

The effect of spot blotch and heat stress on variation of canopy temperature depression, chlorophyll fluorescence and chlorophyll content of hexaploid wheat genotypes

Heritability estimates of field resistance to spot blotch in four spring wheat crosses

Genetics Of Resistance To Spot Blotch (Bipolaris Sorokiniana Sacc. In Borok, Shoem.) In Wheat (Triticum Aestivum L.Em. Thell.)

Bipolaris sorokiniana-Induced Black Point, Common Root Rot, and Spot Blotch Diseases of Wheat: A Review

Barley mutants with enhanced level of resistance to Swedish isolates ofBipolaris sorokiniana, casual agent of spot blotch

Farmer participatory evaluation confirms higher grain yields in spring wheat using a selection index for spot blotch resistance, maturity and kernel weight