Sugar beet cultivar evaluation for storability and rhizomania resistance

Strausbaugh, C.A. and Eujayl, Imad A. and Rearick, E. and Foote, P. and Elison, D (2009) Sugar beet cultivar evaluation for storability and rhizomania resistance. Plant Disease. 93:632-638.

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Abstract

To reduce storage losses and improve resistance to rhizomania caused by Beet necrotic yellow
vein virus (BNYVV), studies were initiated to establish a storage cultivar selection program. In
2006 and 2007, 30 or more commercial sugar beet (Beta vulgaris) cultivars were grown in soil
naturally infested with BNYVV. At harvest, two root samples from each plot were collected and
used to establish percent sugar. Additional samples were placed on top of an indoor pile (set
point 1.7°C) and inside an outdoor pile in a randomized complete block design with four replications.
After 142 and 159 days in indoor storage, sucrose reduction ranged from 13 to 90% in
2007 and 57 to 100% in 2008. Outdoor storage sucrose reduction ranged from 13 to 32% in
2007 and 28 to 60% in 2008. An average of 31 and 45% of the root surface was covered with
fungal growth in 2007 and 2008, respectively. Cultivars that retained the most sucrose had resistance
to BNYVV and the least fungal growth and weight loss. Indoor storage with BNYVV infested
roots allowed for the most consistent cultivar separation and will potentially lead to
selection of cultivars for improved storability and rhizomania resistance.

Item Type:	Article
NWISRL Publication Number:	1295
Subjects:	Irrigated crops > Sugarbeet
Depositing User:	Users 6 not found.
Date Deposited:	04 Jun 2009 19:39
Last Modified:	18 Oct 2016 15:06
Item ID:	1318
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/1318