Title
White mold-resistant, interspecific common bean breeding line VRW 32 derived from phaseolus costaricensis
Date Issued
01 January 2013
Access level
metadata only access
Resource Type
journal article
Author(s)
University of Idaho, Kimberly Research & Extension Center
Publisher(s)
Crop Science Society of America
Abstract
The interspecific breeding line VRW 32 (Reg. No. GP-287, PI 665037) of common bean (Phaseolus vulgaris L.), which is resistant to white mold [caused by Sclerotinia sclerotiorum (Lib.) de Bary], was jointly developed at the University of Idaho Kimberly Research and Extension Center, Kimberly, ID; Colorado State University, Fort Collins, CO; and CIAT, Cali, Colombia. The Idaho Agricultural Experiment Station released VRW 32 on 7 Dec. 2011. VRW 32 is the first white mold-resistant interspecific breeding line derived from P. costaricensis Freytag & Debouck, a member of the secondary gene pool of common bean. VRW 32 was derived from recurrent backcrossing between the small-seeded (100-seed weight < 25 g) tropical black common bean cultivar ICA Pijao and the small-seeded wild P. costaricensis germplasm accession G 40604 (100-seed weight < 19 g). ICA Pijao has an indeterminate upright growth habit Type II, purple flowers, and resistance to Bean common mosaic virus and tolerance to Bean golden mosaic virus. G 40604 has an indeterminate climbing growth habit Type IV and deep reddish-purple magenta flowers. VRW 32 has growth habit Type II, white flowers, grayish-brown seed, and white mold resistance with a score of 2.7 in the fled and 4.3 in the greenhouse in Idaho and 5.5 in the greenhouse in Colorado compared with 5.7, 5.8, and 6.6, respectively, for the recurrent parent, ICA Pijao. VRW 32 matures in approximately 100 d in southern Idaho. VRW 32 may be used to study the interaction between the pathogen and different sources of white mold resistance and for pyramiding resistance from across Phaseolus spp. and introgressing higher levels of resistance into common bean cultivars. © Crop Science Society of America.
Start page
95
End page
98
Volume
7
Issue
1
Language
English
OCDE Knowledge area
Zoología, Ornitología, Entomología, ciencias biológicas del comportamiento
Scopus EID
2-s2.0-84872022923
Source
Journal of Plant Registrations
ISSN of the container
19365209
Sources of information:
Directorio de Producción Científica
Scopus