ALFALFA

Agronomic and forage traits evaluated at Rosemount and St. Paul, Minnesota

Data is expressed as an acid soil efficiency ratio (ASER) : the root weight 1 inch in acid soil divided by root weight 1 inch in limed soil / the root weight 1 inch in acid soil divided by root weight 1 inch in limed soil of a acid tolerant Check. A score of less than one (>1) is more acid tolerant than the best available check.

Data is expressed as an acid soil efficiency ratio (ASER) : the root weight 1 inch in acid soil divided by root weight 1 inch in limed soil / the root weight 1 inch in acid soil divided by root weight 1 inch in limed soil of a acid tolerant Check. A score of less than one (>1) is more acid tolerant than the best available check.

Data is expressed as an acid soil efficiency ratio (ASER) : the root weight 1 inch in acid soil divided by root weight 1 inch in limed soil / the root weight 1 inch in acid soil divided by root weight 1 inch in limed soil of a acid tolerant Check. A score of less than one (>1) is more acid tolerant than the best available check.

Data is expressed as an acid soil efficiency ratio (ASER) : the root weight 1 inch in acid soil divided by root weight 1 inch in limed soil / the root weight 1 inch in acid soil divided by root weight 1 inch in limed soil of a acid tolerant Check. A score of less than one (>1) is more acid tolerant than the best available check.

Data is expressed as an acid soil efficiency ratio (ASER) : the root weight 1 inch in acid soil divided by root weight 1 inch in limed soil / the root weight 1 inch in acid soil divided by root weight 1 inch in limed soil of a acid tolerant Check. A score of less than one (>1) is more acid tolerant than the best available check.

Data is expressed as an acid soil efficiency ratio (ASER) : the root weight 1 inch in acid soil divided by root weight 1 inch in limed soil / the root weight 1 inch in acid soil divided by root weight 1 inch in limed soil of a acid tolerant Check. A score of less than one (>1) is more acid tolerant than the best available check.

Study Name: Anthracnose resistance Year started: //1983 Year ended: //1983 Comment: Means over 4 reps.

Study Name: Anthracnose resistance Year started: //1989 Year seeded: //1989 Year tested: //1989 Year ended: //1989

Study Name: Anthracnose resistance Year started: //1989 Year seeded: //1989 Year tested: //1989 Year ended: //1989 Comment: value adjusted to cultivar ARC = 65% resistant plants

Study Name: Anthracnose resistance Year started: //1990 Year seeded: //1990 Year tested: //1990 Year ended: //1990

Study Name: Anthracnose resistance Year started: //1991 Year tested: //1991 Year ended: //1991

Study Name: Aphanomyces Root Rot resistance Year started: //1988 Year seeded: //1988 Year ended: //1988

Study Name: Aphanomyces Root Rot resistance Year started: //1989 Year seeded: //1989 Year ended: //1989

Study Name: Aphanomyces Root Rot resistance Year started: //1990 Year seeded: //1990 Year ended: //1990

Study Name: Aphanomyces Root Rot resistance Year started: //1991 Year seeded: //1991 Year ended: //1991

Study Name: Bacterial Wilt Resistance Experiment Type: Field Year tested: //1989 Comment: Means over 2 replicates.

Study Name: BLUE ALFALFA APHID Year started: //1984 Year seeded: //1984 Year planted: //1984 Year tested: //1984 Year ended: //1984 Experiment length: 40-50 DAYS

Study Name: BLUE ALFALFA APHID Year started: //1985 Year seeded: //1985 Year planted: //1985 Year tested: //1985 Year ended: //1985 Experiment length: 40-50 DAYS

Study Name: BLUE ALFALFA APHID Year started: //1986 Year seeded: //1986 Year planted: //1986 Year tested: //1986 Year ended: //1986 Experiment length: 40-50 DAYS

Study Name: BLUE ALFALFA APHID Year started: //1987 Year seeded: //1987 Year planted: //1987 Year tested: //1987 Year ended: //1987 Experiment length: 40-50 DAYS

Study Name: BLUE ALFALFA APHID Year started: //1988 Year seeded: //1988 Year planted: //1988 Year tested: //1988 Year ended: //1988 Experiment length: 40-50 DAYS

Study Name: BLUE ALFALFA APHID Year started: //1989 Year seeded: //1989 Year planted: //1989 Year tested: //1989 Year ended: //1989 Experiment length: 40-50 DAYS

Study Name: BLUE ALFALFA APHID Year started: //1990 Year tested: //1990 Experiment length: 40-50 DAYS

Chromosome number. Feulgen's Staining method was used. 20 individual plants with at least 25 cells per individual was counted.

Ploidy was determined by chromosome counts on root tips of germinating seeds and by flow cytometry. All subsp. falcata accessions were analyzed by both methods. All other accessions were analyzed with flow cytometry only. Chromosome counts were performed on root tips of newly germinated seeds as determined by Karp(1991), using ice-cold water for pretreatment. Counts were made microscopically on 5 to 10 cells per plants at 400 and 1000 times magnification. Data is published in: 'Ploidy Determination of Alflafa Germplasm Accessions Using Flow Cytometry'. E. Charles Brummer, Patricia M. Cazcarro, and Diane Luth. Crop Sci. 39:1202-1207(1999).

Chromosome numbers (ploidy level) done by M. Azhar Hossain and Gary Bauchan, Beltsville, Maryland. The method used is referenced in: Bauchan, G.R. and Elgin, J. H., Jr. 1984. A new chromosome number for the genus Medicago. Crop Science 24:193-195. 10 cells per plant on 10 plants were tested.

Somatic number determined by the donor of the accessions

Ploidy was measured on fresh leaf material by flow cytometry with a Partec CyFlow Ploidy Analyzer DAPI using Partec CyStain UV precise P extraction buffer and staining buffer. Leaf material was taken from alfalfa plants grown in cone-tainers (size) and maintained in greenhouse. Ten plants were available for all but 2 accessions. Plants were bulked in groups of 5 for ploidy analysis, therefore, 2 analyses done for each accession. Material for analysis was cut from young, fully expanded leaflets. Leaf tissue was homogenized by chopping into fine particle with a razor blade for 30 to 60 seconds in extraction buffer, incubated for 1 and half to 2 min, filtered through 30 um nylon mesh, stain buffer added and incubated in dark for 1 min before analysis. Extraction and stain buffers were kept on ice, but procedures were done at room temperature. Before analyzing the CyFlow Ploidy Analyzer was checked for DNA-DAPI quality control by running a sample tube of Partec Calibration Beads UV. Following this a sample of Medicago (Study 196, Archer FDC-5) with known ploidy (tetraploid) was run, the gain (signal amplification) was adjusted to set the tetraploid peak at channel 100, and the configuration script saved. This script was used to run all subsequent samples. Sample speed was constant at 1.0 ul/sec. A minimum of 1000 particles per sample were analyzed.

Methodology is described in Theoretical and Applied Genetics 121:403-415.

Methodology is described in Turkish Journal of Botany 35:509-519

Alfalfa core developed by D.H. basigalup, D.K. Barnes, R.E. Stucker, University of Minnesota, St. Paul, Minnesota. See Crop Sci. 35:1163-1168(1995). Data from 50 agronomic, forage quality, root and crown morphology, pest resistance and stress tolerance traits on 1100 PI accessions was used to develop the Core.

Study Name: Downy Mildew resistance Year started: //1983 Year ended: //1984 Comment: Means over ? replicates.

Study Name: Downy Mildew resistance Year started: //1984 Year ended: //1985 Comment: Means over ? replicates.

Study Name: Downy Mildew resistance Year started: //1985 Year ended: //1986 Comment: Means over ? replicates.

Study Name: Downy Mildew resistance Year started: //1986 Year ended: //1987 Comment: Means over ? replicates.

Study Name: Downy Mildew resistance Year started: //1988 Year tested: //1988 Year ended: //1989 Comment: Means over ? replicates.

Study Name: Downy Mildew resistance Year started: //1990 Year tested: //1990 Year ended: //1990 Comment: Means over ? replicates.

Study Name: Downy Mildew resistance Year started: //1992 Year tested: //1992 Year ended: //1992 Comment: Means over ? replicates.

Study Name: Downy Mildew resistance Year started: //1983 Year ended: //1984 Comment: Means over ? replicates.

Study Name: Downy Mildew resistance Year started: //1984 Year ended: //1985 Comment: Means over ? replicates.

Study Name: Downy Mildew resistance Year started: //1985 Year ended: //1986 Comment: Means over ? replicates.

Study Name: Downy Mildew resistance Year started: //1986 Year ended: //1987 Comment: Means over ? replicates.

Study Name: Downy Mildew resistance Year started: //1988 Year tested: //1988 Year ended: //1989 Comment: Means over ? replicates.

Study Name: Downy Mildew resistance Year started: //1990 Year tested: //1990 Year ended: //1990 Comment: Means over ? replicates.

Study Name: Downy Mildew resistance Year started: //1992 Year tested: //1992 Year ended: //1992 Comment: Means over ? replicates.

Flower color taken while doing the ploidy determination testing. See: 'Ploidy Determination of Alfalfa Germplasm Accessions Using Flow Cytometry'. E. Charles Brummer, Patricia M. Cazarro, and Diane Luth. Crop Sci. 39:1202-1207(1999).

Study Name: Fusarium Wilt Resistance Experiment Type: Field Year tested: //1984 Comment: Means over 2 replicates.

Study Name: Fusarium Wilt Resistance Experiment Type: Field Year tested: //1985 Comment: Means over 2 replicates.

Study Name: Fusarium Wilt Resistance Experiment Type: Field Year tested: //1986 Comment: Means over 2 replicates.

Study Name: Fusarium Wilt Resistance Experiment Type: Field Year tested: //1987 Comment: Means over 2 replicates.

Study Name: Fusarium Wilt Resistance Experiment Type: Field Year tested: //1989 Comment: Means over 2 replicates.

Study Name: Fusarium Wilt Resistance Experiment Type: Field Year started: //1990 Year tested: //1990 Year ended: //1990 Comment: Means over 2 replicates.

Study Name: Fusarium Wilt Resistance Experiment Type: Field Year started: //1992 Year tested: //1992 Year ended: //1992 Comment: Means over 2 replicates.

Genetic distance between accessions using fragment length polymorphism in hypervariable regions of chloroplast DNA (Theoretical and Applied Genetics 101:1242-1249)text. View genetic distance matrix of 135 accessions Matrix table 135 by 135 as an Excel table. View genetic distance between accessions in the other Excel table.

Study Name: Common Leaf Spot resistance Year started: //1983 Year seeded: //1983 Year tested: //1983 Year ended: //1983

Study Name: Common Leaf Spot resistance Year started: //1984 Year seeded: //1984 Year ended: //1984

Study Name: Common Leaf Spot resistance Year started: //1989 Year seeded: //1989

Study Name: Common Leaf Spot resistance Year started: //1990 Year seeded: //1990 Year tested: //1990

Study Name: Lepto Leaf Spot resistance Year started: //1983 Year seeded: //1983 Year tested: //1983 Year ended: //1983

Study Name: Lepto Leaf Spot resistance Year started: //1984 Year seeded: //1984 Year tested: //1984 Year ended: //1984

Study Name: Lepto Leaf Spot resistance Year started: //1989 Year seeded: //1989

Study Name: Lepto Leaf Spot resistance Year started: //1990 Year seeded: //1990 Year tested: //1990

Study Name: Lepto Leaf Spot resistance Year started: //1991 Year seeded: //1991 Year tested: //1991 Year ended: //1991

Seedling screening technique experiments were conducted in a greenhouse on the University of California Davis campus. Temperature and lighting were controlled by whitewashing the greenhouse, heating and cooling as necessary (maximum 38(C, minimum 27(C), and providing supplemental lighting to maintain 16:8 hour light : dark cycle of uniform intensity. Circular cages were used with core collection, resistant (Rincon) and susceptible (Moapa 69) cultivars along with the standard cultivars used in the UIL study. There were 18 rows radiating out from the center of the cage. The susceptible cultivar was planted in rows 3,6,9,12,15,and 18. This was to assure the test cultivars had a susceptible cultivar on one side of them. When seedlings reached the unifoliolate leaf stage they were thinned to 8 plants per row and bugs were inoculated. The experimental design was a randomized complete block with three reps planted on the same date. Screening of each test germplasm from the core collection was replicated 12 times. The seeds were planted in the same benches as the UIL study using sterilized UC mix as a soil medium. To reduce variability within and among replicates, adult Lygus hesperus, all the same age, were purchased from a commercial insectary ( Biotactics, 29810 Mountain Ave., Romoland, CA 92585, Telephone number 1 (909) 320-1366 ). Bugs were raised under conditions of ideal temperature and humidity and were allowed to feed continuously on an artificial diet until the time they were placed in vials for inoculation into cages. Actively feeding and egg-laying adult females (23 - 25 days old) were used for experiments. To score Lygus bug damage to the seedling alfalfa plants an average severity index (ASI) with a scale (1-5) was used. The ASI is based plant reaction to Lygus bug stings. The scoring criteria are: 1 = no damage, 2 = 1 leaf wilted, 3 = 2 leaves wilted, 4 = 3 leaves wilted, and 5 = plant dead, dry. Previous studies showed that differences in germ

Study Name: Pea aphid resistance Year started: //1984 Year tested: //1984 Year ended: //1984

Study Name: Pea aphid resistance Year started: //1985 Year tested: //1985 Year ended: //1985

Study Name: Pea aphid resistance Year started: //1986 Year tested: //1986 Year ended: //1986

Study Name: Pea aphid resistance Year started: //1987 Year tested: //1987 Year ended: //1987

Phtyophthora Root Rot resistance Experiment Type: Greenhouse greenhouse Year started: //1989 Year seeded: //1989 Year tested: //1989

Phtyophthora Root Rot resistance Experiment Type: Greenhouse greenhouse Year started: //1989 Year seeded: //1989 Year tested: //1989

Phtyophthora Root Rot resistance Experiment Type: Greenhouse greenhouse Year started: //1989 Year seeded: //1989 Year tested: //1989

Phtyophthora Root Rot resistance Experiment Type: Greenhouse greenhouse Year started: //1990 Year seeded: //1990 Year tested: //1990 Year ended: //1990

Phtyophthora Root Rot resistance Experiment Type: Greenhouse greenhouse Year started: //1990 Year seeded: //1990 Year tested: //1990 Year ended: //1990

Phtyophthora Root Rot resistance Experiment Type: Greenhouse greenhouse Year started: //1990 Year seeded: //1990 Year tested: //1990 Year ended: //1990

Phtyophthora Root Rot resistance Experiment Type: Greenhouse greenhouse Year started: //1991 Year seeded: //1991 Year tested: //1991 Year ended: //1991

Study Name: Potato Leafhopper resistance Year started: //1984 Year seeded: //1984 Year tested: //1984 Year ended: //1984

Study Name: Potato Leafhopper resistance Year started: //1985 Year seeded: //1985 Year tested: //1985 Year ended: //1985

Study Name: Potato Leafhopper resistance Year started: //1988 Year seeded: //1988 Year tested: //1988 Year ended: //1988

Study Name: Potato Leafhopper resistance Year started: //1989 Year seeded: //1989 Year tested: //1989 Year ended: //1989

Study Name: Potato Leafhopper resistance Year started: //1990 Year seeded: //1990 Year tested: //1990 Year ended: //1990

Study Name: Potato Leafhopper resistance Year started: //1990 Year tested: //1991 Year ended: //1991

Study Name: Potato Leafhopper resistance Year started: //1991 Year tested: //1992 Year ended: //1992

Study Name: Potato Leafhopper resistance Year started: //1992 Year tested: //1993 Year ended: //1993

Potato Leafhopper resistance. planted 1993, data taken July 8, 1994

In vitro dry matter disappearance Experiment Type: In vitro In vitro Year started: //1992 Year ended: //1992

In vitro dry matter disappearance Experiment Type: In vitro In vitro

Study Name: Rhizotonia Root Rot resistance Year started: //1989 Year tested: //1989

Study Name: Rhizotonia Root Rot resistance Year started: //1990 Year tested: //1990

Study Name: Rhizotonia Root Rot resistance Year started: //1991 Year tested: //1991

Clover Root Curculio resistance Year started: //1984 Year tested: //1986 Year ended: //1986

Clover Root Curculio resistance Year started: //1985 Year tested: //1987 Year ended: //1987

Clover Root Curculio resistance Year started: //1987 Year tested: //1989 Year ended: //1989

Clover Root Curculio resistance Year started: //1988 Year tested: //1990 Year ended: //1990

Clover Root Curculio resistance Year started: //1990 Year tested: //1992 Year ended: //1992

Clover Root Curculio resistance Year started: //1991 Year tested: //1993 Year ended: //1993

Clover Root Curculio resistance. Planted August 1993, data taken July 8, 1994

Clover Root Curculio resistance. Planted 1993, plants dug July 1995

Alfalfa germination in saline solutions Experiment Type: Laboratory Exp. Design: Rand. comp. block Year started: //1988 Year tested: //1988 Year ended: //1988 See article: Plant and Soil 124, 47-51(1990)

Alfalfa germination in saline solutions Experiment Type: Laboratory Exp. Design: Rand. comp. block Year started: //1989 Year tested: //1989 Year ended: //1989 See article: Plant and Soil 124, 47-51(1990)

Alfalfa germination in saline solutions Experiment Type: Laboratory Exp. Design: Rand. comp. block Year started: //1990 Year tested: //1990 Year ended: //1990 See article: Plant and Soil 124, 47-51(1990)

Alfalfa germination in saline solutions Experiment Type: Laboratory Exp. Design: Rand. comp. block Year started: //1991 Year tested: //1991 Year ended: //1991 See article: Plant and Soil 124, 47-51(1990)

Salt stress is applied to plants over 105 days period. Seedling are grown in 20 by 5 cm conetainers in the greenhouse. Three harvests are taken during this period either at 49 or 28 day intervals and fresh weight of herbage recorded. Salt tolerance of accessions is evaluated by comparing herbage production under salt stress with that in an unstressed control. Two replications of the procedure are used to calculate estimates of salt tolerance during regrowth. Thus: THE HIGHER THE NUMBER THE HIGHER THE SALT TOLERANCE. Numbers above 1 are more salt tolerant than the three cultivars used as internal controls: Mesa-Sirsa, Malone and Saranac AR

Salt stress is applied to plants over 105 days period. Seedling are grown in 20 by 5 cm conetainers in the greenhouse. Three harvests are taken during this period either at 49 or 28 day intervals and fresh weight of herbage recorded. Salt tolerance of accessions is evaluated by comparing herbage production under salt stress with that in an unstressed control. Two replications of the procedure are used to calculate estimates of salt tolerance during regrowth. Thus: THE HIGHER THE NUMBER THE HIGHER THE SALT TOLERANCE. Numbers above 1 are more salt tolerant than the three cultivars used as internal controls: Mesa-Sirsa, Malone and Saranac AR

Salt stress is applied to plants over 105 days period. Seedling are grown in 20 by 5 cm conetainers in the greenhouse. Three harvests are taken during this period either at 49 or 28 day intervals and fresh weight of herbage recorded. Salt tolerance of accessions is evaluated by comparing herbage production under salt stress with that in an unstressed control. Two replications of the procedure are used to calculate estimates of salt tolerance during regrowth. Thus: THE HIGHER THE NUMBER THE HIGHER THE SALT TOLERANCE. Numbers above 1 are more salt tolerant than the three cultivars used as internal controls: Mesa-Sirsa, Malone and Saranac AR

Study Name: Sclerotina Crown Rot Year seeded: //1989 Year planted: //1989 Year transplant: //1989 Year tested: //1989 Year ended: //1989

Study Name: Sclerotina Crown Rot Year started: //1990 Year seeded: //1990 Year planted: //1990 Year tested: //1990 Year ended: //1990

Study Name: Sclerotina Crown Rot Year started: //1991 Year seeded: //1991 Year planted: //1991 Year tested: //1991 Year ended: //1991

Study Name: Sclerotina Crown Rot

Study Name: Evaluations from and about the increase Exp. Location: Prosser Year started: //1988 Year ended: //1988 Comment: 1-149=9 150-299=8 300-449=7 450-599=6 600-749=5 750-899=4 900-1049=3 1050-1200=2 1200-above=1 Grams per cage

Study Name: Evaluations from and about the increase Exp. Location: Prosser Year started: //1989 Year ended: //1989 Comment: 1-149=9 150-299=8 300-449=7 450-599=6 600-749=5 750-899=4 900-1049=3 1050-1200=2 1200-above=1 Grams per cage

Study Name: Evaluations from and about the increase Exp. Location: Prosser Year started: //1990 Year ended: //1990 Comment: 1-149=9 150-299=8 300-449=7 450-599=6 600-749=5 750-899=4 900-1049=3 1050-1200=2 1200-above=1 Grams per cage

Study Name: Evaluations from and about the increase Exp. Location: Prosser Year started: //1991 Year ended: //1991 Comment: 1-149=9 150-299=8 300-449=7 450-599=6 600-749=5 750-899=4 900-1049=3 1050-1200=2 1200-above=1 Grams per cage

Study Name: Evaluations from and about the increase Exp. Location: Prosser Year started: //1992 Year ended: //1992 Comment: 1-149=9 150-299=8 300-449=7 450-599=6 600-749=5 750-899=4 900-1049=3 1050-1200=2 1200-above=1 Grams per cage

Study Name: Evaluations from and about the increase Exp. Location: Prosser Year started: //1993 Year tested: //1993 Year ended: //1993 Comment: 1-149=9 150-299=8 300-449=7 450-599=6 600-749=5 750-899=4 900-1049=3 1050-1200=2 1200-above=1 Grams per cage

Evaluations from and about the increase Exp. Location: Prosser Year started:1994, Year ended: 1993 Comment: 1-149=9 150-299=8 300-449=7 450-599=6 600-749=5 750-899=4 900-1049=3 1050-1200=2 1200-above=1 Grams per accession

100 seed weight at the Western Regional Plant Introduction Station, Pullman Washington, USA

The field nursery was established in June 1998, and plant roots were evaluated in late July/early August 2000. The field nursery was near Watertown, New York. Approximately 120 seeds of each accession were started in flats in the greenhouse in April 1998. Other experimental alfalfa entries and one birdsfoot trefoil entry were included in the study as well. When the plants were approximately 7-8 wks. old, they were transplanted (22, 23 June 1998) to a field site in northern New York, with up to 16 plants per entry row, and 9.5" between plants; three replicates of each entry were established. Plants were cut according to the cooperating farmer's schedule, and were maintained in the field until 2000. In the spring of 2000, we took plant counts in every entry row for establishing a baseline plant population prior to oviposition on the plants. A natural, high-density population of adult alfalfa snout beetle migrated into the field in the spring of 2000. In late July of 2000, we found consistent distribution of larvae and evidence of larval root feeding throughout the nursery, and we then evaluated every plant in the nursery for damage, using the 1-5 scale.

Study Name: Spotted Alflafa aphid Year started: //1984 Year tested: //1984 Year ended: //1984

Study Name: Spotted Alflafa aphid Year started: //1985 Year tested: //1985 Year ended: //1985

Study Name: Spotted Alflafa aphid Year started: //1986 Year tested: //1986 Year ended: //1986

Study Name: Spotted Alflafa aphid Year started: //1987 Year tested: //1987 Year ended: //1987

Study Name: Spotted Alflafa aphid Year started: //1989 Year tested: //1989

Study Name: Spotted Alflafa aphid Year started: //1990 Year tested: //1990

Study Name: Spotted Alflafa aphid Year started: //1991 Year tested: //1991

Study Name: Spotted Alflafa aphid Year started: //1992 Year tested: //1992

Spring Black Stem resistance Year started: //1983 Year seeded: //1983 Year tested: //1983 Year ended: //1983

Spring Black Stem resistance Year started: //1984 Year seeded: //1984 Year ended: //1984

Spring Black Stem resistance Year started: //1989 Year seeded: //1989

Spring Black Stem resistance Year started: //1990 Year seeded: //1990 Year tested: //1990

Spring Black Stem resistance Year started: //1991 Year seeded: //1991 Year tested: //1991 Year ended: //1991

These accessions are part of the Standard Test varieties used in characterizing alfalfa. You may find these varieties with another accession number elsewhere in the GRIN-Global database, but unique accessions numbers were given to these STANDARD CHECKS so descriptor and inventory data could be entered separately.

North American Alfalfa Improvement Conference (NAAIC) homepage: NAAIC Home page

NAAIC Standard Tests to Characterize Alfalfa Cultivars: Standard Tests List

Please provide STANDARD CHECK variety name in the request. Send request to:

Brian M. Irish, Ph.D.
USDA,ARS, PGITRU
Temperate-adapted Forage Legumes
24106 N. Bunn Road
Prosser, WA. 99350-9687
Phone: (509) 786-9316
Email: brian.irish@ars.usda.gov .

Study Name: Stemphyllium Leaf Spot resistance Year started: //1983 Year seeded: //1983 Year tested: //1983 Year ended: //1983

Study Name: Stemphyllium Leaf Spot resistance Year started: //1984 Year seeded: //1984 Year tested: //1984 Year ended: //1984

Study Name: Stemphyllium Leaf Spot resistance Year started: //1989 Year seeded: //1989

Study Name: Stemphyllium Leaf Spot resistance Year started: //1990 Year seeded: //1990 Year tested: //1990

Study Name: Stemphyllium Leaf Spot resistance Year started: //1991 Year seeded: //1991 Year tested: //1991 Year ended: //1991

Evaluation of the UIL occurred under controlled light and temperature conditions in a greenhouse on the University of California Davis campus in March 1993. Seedling UIL was evaluated 3 weeks after planting. A previous study indicated a correlation between UIL and fall dormancy.(Schneider, 1984)

Verticillium Wilt tested by Richard Peaden at Prosser, Washignton in 1984.

Verticillium Wilt tested by Richard Peaden at Prosser, Washignton in 1985.

Verticillium Wilt tested by Richard Peaden at Prosser, Washignton in 1987.

Verticillium Wilt tested by Richard Peaden at Prosser, Washignton in 1988.

Verticillium Wilt tested by Richard Peaden at Prosser, Washignton in 1989.

Verticillium Wilt tested by Richard Peaden at Prosser, Washington in June 1990.

Collection pictures from the Richard C. Johnson, Harold Bockelman, Korzhenevsky, V., Boguslavsky, R. collection in 1999 from Krym, Ukraine.

Collection pictures taken in 2000 from the Kazakstan trip made by Rich Hannan, Stephanie Greene, A. Khusainov, A. Afonin, and N. Dzyubenko.

Collection pictures from Fred Meuhlbauer and Walt Kaiser 2004 trip to Georgia.

For a Powerpoint view of 24 pictures of the Georgia collection click here. It is 7793 KB in size.

Images/pictures from Prosser, Washington

Images/pictures from Prosser, Washington

Images/pictures from Prosser, Washington

Images/pictures from Prosser, Washington

Images/pictures from Prosser, Washington

Images/pictures from Prosser, Washington

Images/pictures from Prosser, Washington

Images/pictures from Prosser, Washington

Images/pictures from Prosser, Washington