HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Ren, Q. Articles by Ghabrial, S. A. Search for Related Content PubMed Articles by Ren, Q. Articles by Ghabrial, S. A. Agricola Articles by Ren, Q. Articles by Ghabrial, S. A.

Soybean Mosaic Virus Resistance Improves Productivity of Double-Cropped Soybean

Dep. of Agronomy

S. A. Ghabrial

Dep. of Plant Pathology, Univ. of Kentucky, Lexington, KY 40546

^* Corresponding author.

Double-cropped soybean [Glycine max (L.) Merr.], an important production system in the upper south and southeastern USA, has lower productivity than full season soybean. Soybean mosaic virus (SMV) appears to be prevalent in soybean in the upper south of the USA. Yield losses due to SMV infection are greater the earlier infection occurs in relation to soybean developmental stages. Soybean may be infected by SMV at earlier developmental stages when planted late than when planted early, thus double-cropped soybeans may be more susceptible to yield reduction caused by SMV infection. The objectives of this study were to determine whether SMV resistance provided an average yield benefit in late planting and whether the expression of this benefit was dependent on background genotypes. In 18 resistant/susceptible genotype pairs the resistant genotypes, overall, provided 283 kg ha^–1 (12%) resistance benefit for yield over susceptible genotypes in late plantings. This benefit was independent of background genotype and significantly correlated with the difference between early plantings and late plantings in the incidence of SMV infection at growth stage R₁ (r = 0.72, P < 0.01). In late planting environments resistance also provided benefits for seed quality traits, i.e., no seed transmission of SMV and low seed coat mottling. We recommend that resistance to SMV should be incorporated into soybean cultivars which will be used in the double-cropping production system.

Received for publication October 11, 1996.

This article has been cited by other articles:

				M. A. Saghai Maroof, S. C. Jeong, I. Gunduz, D. M. Tucker, G. R. Buss, and S. A. Tolin Pyramiding of Soybean Mosaic Virus Resistance Genes by Marker-Assisted Selection Crop Sci., March 19, 2008; 48(2): 517 - 526. [Abstract] [Full Text] [PDF]

				T. W. Pfeiffer, R. Peyyala, Q. Ren, and S. A. Ghabrial Increased Soybean Pubescence Density: Yield and Soybean mosaic virus Resistance Effects Crop Sci., November 1, 2003; 43(6): 2071 - 2076. [Abstract] [Full Text] [PDF]

				G. Koning, D. M. TeKrony, S. A. Ghabrial, and T. W. Pfeiffer Soybean mosaic virus (SMV) and the SMV Resistance Gene (Rsv1): Influence on Phomopsis spp. Seed Infection in an Aphid Free Environment Crop Sci., January 1, 2002; 42(1): 178 - 185. [Abstract] [Full Text] [PDF]

				G. Koning, D. M. TeKrony, T. W. Pfeiffer, and S. A. Ghabrial Infection of Soybean with Soybean mosaic virus Increases Susceptibility to Phomopsis spp. Seed Infection Crop Sci., November 1, 2001; 41(6): 1850 - 1856. [Abstract] [Full Text] [PDF]

				T.W. Pfeiffer Selecting Soybean for Adaptation to Double Cropping on the Basis of Full Season Plant Height Crop Sci., March 1, 2000; 40(2): 387 - 390. [Abstract] [Full Text]