Evaluation of sugar beet germplasm and plant introductions response to rhizomania and storability in Idaho, 2008

Eujayl, Imad A. and Strausbaugh, C.A. (2009) Evaluation of sugar beet germplasm and plant introductions response to rhizomania and storability in Idaho, 2008. Plant Disease Management Reports. 3:p. FC105.

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Abstract

Sugar beet germplasm, wild beta, and commercial check cultivars were evaluated in a commercial
field (near Declo, ID ). This field was sprinkler-irrigated and winter wheat was grown in the previous year.
The field trial relied on natural inoculum for rhizomania development. The seed was treated with
clothianidin (2.1 oz a.i. per 100,000 seed) to limit the influence of pests and curly top. The plots were
planted on 15 Apr 08 to a density of 142,560 seeds/A, and thinned to 47,520 plants/A on 12 Jun. Plots
were single rows (22-in. row spacing) and 10 ft long. The experimental design was a randomized complete
block design with eight replications per entry. The field was cultivated on 13 Jun 08. The crop was
managed by the grower according to standard cultural practices. The roots were mechanically topped and
lifted on 29 Sep 08. The first ten roots in each plot were scored for disease severity index (DSI) using a
scale of 0-9 (0 = healthy and 9 = dead). To evaluate germplasm for storability, eight roots from each plot
from 4 replications were placed in a mesh onion bag and held in an indoor commercial sugar beet storage
facility set to hold 35°F for 90 days (until 1 Feb 09). The roots were evaluated for the percentage of
surface area covered by fungal growth (an undescribed Basidiomycete that correlates with sugar loss in
storage). Data were analyzed using the general linear models procedure (Proc GLM-SAS), and Fisher’s
protected least significant difference was used for mean comparisons.

Item Type:	Article
NWISRL Publication Number:	1308
Subjects:	Irrigated crops > Sugarbeet Irrigated crops > Sugarbeet > Genetics
Depositing User:	Users 6 not found.
Date Deposited:	30 Nov 2009 21:36
Last Modified:	17 Oct 2016 16:21
Item ID:	1332
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/1332