Classification of sugar beet strains for resistance to Aphanomyces Cochlioides in greenhouse tests

1964 ◽  
Vol 12 (8) ◽  
pp. 651-656 ◽  
Author(s):  
C. L. Schneider
Keyword(s):  
Sugar Beet ◽  
Aphanomyces Cochlioides ◽  
Greenhouse Tests

Aphanomyces cochlioides. [Distribution map].

2021 ◽  
Author(s):  
Keyword(s):  
Nova Scotia ◽  
North America ◽  
South America ◽  
Sugar Beet ◽  
South Dakota ◽  
Geographical Distribution ◽  
Spinacia Oleracea ◽  
Distribution Map ◽  
Aphanomyces Cochlioides ◽  
New Distribution

Abstract A new distribution map is provided for Aphanomyces cochlioides Drechsler. Peronosporea: Saprolegniales: Leptolegniaceae. Hosts: spinach (Spinacia oleracea), sugar beet (Beta vulgaris), and other members of the Chenopodiaceae and Amaranthaceae. Information is given on the geographical distribution in Africa (Egypt), Asia (Japan, Hokkaido, Turkey), Europe (Austria, Belgium, Bulgaria, Croatia, Denmark, Estonia, France, Germany, Hungary, Ireland, Moldova, Netherlands, Poland, Russia, Spain, Sweden, Ukraine, UK), North America (Canada, Alberta, Nova Scotia, Ontario, Quebec, USA, Arizona, California, Connecticut, Idaho, Indiana, Iowa, Maine, Michigan, Minnesota, Montana, Nebraska, North Dakota, Ohio, South Dakota, Texas, Washington, Wisconsin, Wyoming), Oceania (Australia, Queensland), and South America (Chile).

Chewing behaviour of Holstein steers fed diets containing different levels of non-forage fibre in a low forage diet

2009 ◽  
Vol 2009 ◽  
pp. 161-161
Author(s):  
M Mojtahedi ◽  
M Danesh Mesgaran ◽  
A Heravi Moussavi ◽  
A Tahmasbi
Keyword(s):  
Sugar Beet ◽  
Barley Grain ◽  
Sugar Beet Pulp ◽  
Soluble Fiber ◽  
High Concentration ◽  
Beet Pulp ◽  
Feeding Value ◽  
Lactating Dairy Cattle ◽  
Chewing Behaviour

Sugar beet pulp (SBP) is fed to ruminants as a non-forage fibre source (NFFS) ingredient. Early work by Ronning and Bath (1962) demonstrated that SBP was similar in feeding value to barley grain for lactating dairy cattle, supporting classification of beet pulp as an energy concentrate. Sugar beet pulp contains approximately 40% neutral detergent fibre (NDF) and is unique in its high concentration of neutral detergent soluble fiber, especially pectic substances (~25% of dry matter (DM)). However, the effects of SBP when substituted with different feed sources in ration are variable that depend on chemical composition, types and physical characteristics. The time which cows spent eating and ruminating (total chewing time) is a measure of the physically effective fibre value of a feed. The objective of the present experiment was to evaluate the effect of substitution of barley grain with SBP as a NFFS on chewing activity of Holstein steers.

scholarly journals Spatial Distribution of Aphanomyces cochlioides and Root Rot in Sugar Beet Fields

Plant Disease ◽  
2002 ◽  
Vol 86 (5) ◽  
pp. 547-551 ◽  
Author(s):  
Julie W. Beale ◽  
Carol E. Windels ◽  
Linda L. Kinkel
Keyword(s):  
Spatial Distribution ◽  
Sugar Beet ◽  
Root Rot ◽  
Relative Activity ◽  
Soil Samples ◽  
Collection Site ◽  
Minimum Threshold ◽  
Aphanomyces Cochlioides ◽  
Field Samples ◽  
Index Value

Spatial distribution of Aphanomyces cochlioides inoculum and disease was assessed in sugar beet fields located near Moorhead, MN and Wahpeton, ND. Soil samples were collected in June and July 1994 from two main plots (60 by 60 m) in each field. Samples were evaluated for A. cochlioides using a sugar beet seedling assay in the greenhouse to determine a root rot index value (0-to-100 scale), which served as an indirect estimate of relative activity and density of inoculum. Field evaluations of Aphanomyces root rot on sugar beet (0-to-7 scale) were made at harvest in September at each soil collection site. Greenhouse root rot index values correlated positively with field disease ratings for all plots. Variance-to-mean ratios of greenhouse root rot index values and of field disease ratings among samples within each plot were calculated to compare the spatial distribution of midseason inoculum with root rot at harvest. Ratios of greenhouse root rot indices indicated that inoculum of A. cochlioides was aggregated in the field at midseason, but root rot was uniform within plots by harvest. Wet weather in July through August was conducive to infection and development of symptoms. A uniform distribution of disease at harvest likely reflects a combination of factors, including root growth into inoculum foci, redistribution of inoculum, and inoculum densities that are spatially variable but all above some minimum threshold for infection.

Selecting sugar beet seedlings for resistance to Aphanomyces cochlioides

1966 ◽  
Vol 14 (2) ◽  
pp. 164-167 ◽  
Author(s):  
Gerald E. Coe ◽  
C. L. Schneider
Keyword(s):  
Sugar Beet ◽  
Aphanomyces Cochlioides

Aphanomyces Root Rot on Sugar Beet

2000 ◽  
Vol 1 (1) ◽  
pp. 8 ◽  
Author(s):  
Carol E. Windels
Keyword(s):  
Sugar Beet ◽  
Root Rot ◽  
Aphanomyces Cochlioides

This diagositc guide is on Aphanomyces Root Rot on Sugar Beet, by Aphanomyces cochlioides Drechs. Accepted for publication 18 July 2000. Published 20 July 2000.

scholarly journals Mycofumigation with Muscodor albus and Muscodor roseus for Control of Seedling Diseases of Sugar Beet and Verticillium Wilt of Eggplant

Plant Disease ◽  
2003 ◽  
Vol 87 (11) ◽  
pp. 1349-1354 ◽  
Author(s):  
A. M. Stinson ◽  
N. K. Zidack ◽  
G. A. Strobel ◽  
B. J. Jacobsen
Keyword(s):  
Sugar Beet ◽  
Solanum Melongena ◽  
Pythium Ultimum ◽  
Potato Dextrose Agar ◽  
Infested Soil ◽  
Damping Off ◽  
Stand Establishment ◽  
Aphanomyces Cochlioides ◽  
Alginate Capsules ◽  
Antimicrobial Volatiles

Mycofumigation is the use of antimicrobial volatiles produced by fungi such as Muscodor albusitalic and M. roseus for the control of other organisms. Sugar beet (Beta vulgaris L.) stand establishment was increased and disease severity decreased by mycofumigation with M. roseus and M. albus in autoclaved soil infested with Rhizoctonia solani, Pythium ultimum, or Aphanomyces cochlioides. Eggplant seedlings (Solanum melongena L.) transplanted into autoclaved soil infested with Verticillium dahliae and mycofumigated with M. albus and M. roseus had significantly less disease (P < 0.05) after 4 and 5 weeks compared with nonmycofumigated Verticillium-infested soil. The effect of formulation on efficacy of mycofumigation with M. roseus was tested using potato dextrose agar strips, alginate capsules, ground barley, pesta granules, and stabileze granules. The stabileze and ground barley formulations of M. roseus resulted in the best control of P. ultimum damping-off. The best control of A. cochlioides damping-off was with the stabileze formulation, and the stabileze, ground barley, and agar strip formulations provided similar control of R. solani damping-off. In soil infested with P. ultimum, mycofumigation with M. albus stabileze formulation resulted in stand establishment similar to that in the autoclaved soil. Mycofumigation was ineffective in controlling Fusarium wilt of sugar beet. Neither M. albus nor M. roseus affected sugar beet or eggplant growth or appearance except in the stabileze formulation, where stunting was noticed. Mycofumigation with M. albus and M. roseus shows promise for control of soilborne diseases caused by P. ultimum, A. cochlioides, R. solani, and V. dahliae.

Sign in / Sign up

Export Citation Format

Share Document