Projects: Breeding for resistance to Fusarium wilt, various leafspots, fruit rots, late blight, and Verticillium.
Andras, C. F., U. S. Regional Vegetable Breedirg Laboratory, Box 177, St. Andrews Branch, Charleston, South Carolina.
Projects: (With M. W. Hills and Margaret S. Kanapaux) 1. Breeding for resistance to Alternaria, Cladosporium, Fusarium, Phytophthora, Septoria, and Stemphylium; multiple resistance. Also assemble stocks with resistance to other diseases for use of collaborators.
2. Breeding for improvement in higher productivity, maximum smoothness combined with large size and multilocular structure, superior color, particularly of the locular jelly, high ascorbic acid and high solids and % dry matter.
3. Genetic investigation of: Green stem (seedling), green jelly, pigmented seed, linkage between Fusarium wilt immunity and resistance to collar rot and leafmold.
Barham, Warren S. with Ellis D. E., Department of horticuture, University of North Carolina, Raleigh, N. C.
Projects: (1) to develope late blight resistant tomato varieties that are suitable for growth in higher elevations in western North Carolina where late blight is so destructive almost every year; and (2) to develop southern bacterial wilt resistant varieties that are suitable for growth in central and eastern North Carolina. Along with the breeding program, the inheritance of resistance to these two diseases will be studied.
Barton, Donald 103 Genetics Building University of Missouri, Colombia, Missouri.
Projects: (1) Cytogenetic effects of xray and Ultraviolet irradiation; (2) cytological identification of tomato trisomics; (3) linkage studies.
Bohn, G. W. United States Horticultural Field Station, Box 150, La Jolla, California
Projects: (1) Selection for fertility and fruit size in 4N L. esculentum and 4N L. esculentum x L. pimpinellifolium; (2) selection for cold tolerance and other characters in 2N material. (3) The transfer of germ plasm from L. hirtulum and L. peruvianum into L. esculentum
Boswell, Victor R. United States Department of Agriculture, Plant Industry Station, Beltsville, Maryland.
Bowers, John L., Department of Horticulture, Mississippi State College, State College, Mississippi.
Projects: Selection and Breeding Tomatoes and a Study of the Effect of Different Culture Methods on Yield and Quality of Fruit.
Brock, R. D., Division of Plant Industry, P. O. Box 109, City, Canberra Australia.
Projects: (1) Breeding for resistance to Fusarium Wilt. (2) Breeding for resistance to Root-knot nematode.
Brown, Ralph T., Plaquemines Parish Experiment Station, Diamond, Lousiana
Projects: Breeding to combine the resistance to such diseases as Early Blight, Late Blight and Grey Leaf Spot with high production and earliness of other varieties.
Brown, S. W. Genetics Division, University of California, Berkeley, California
Projects: (1) Attempts are made to grow recessive lethals under sterile conditions by nutritional suppliments to Hoagland's solution. Techniques have been worked out for growing seedlings on a liquid medium in tubes a third filled with glass beads topped by a thin layer of glass wool. Illumination is provided in the laboratory by fluorescent lights. In the greenhouse, the cotyledons of the mutants turn yellow-green and seedlings persist for many days with little or no growth. In the tubes growth proceeds somewhat beyond the cotyledon stage and the mutants become necrotic and die rapidly. (2) F2 progenies from irradiated pollen are grown for seedling mutants. Lethals produced are saved for nutritional tests. Other types are being used for linkage studies in the hope of building up stocks with good markers expressed in early development, as well as enlarging the linkage maps. (3) Cytological studies are being made of the origin and nature of the chromocenter in tapetal nuclei in the hope of gtting better understanding of the heterochromatin-like function of the chromatic zones.
Brown, Walter N., Department of Horticulture, University of Illinois, Urbana Illinois.
Projects: (Collaborating on projects with W. A. Huelson).
Bullard, E. T., Branch Experiment Station, University of Idaho, Parma Idaho.
Burdick, Allan B., Department of Agronomy, University of Arkansas, Feyetteville, Arkansas.
Projects: (1) Behavior of diploids derived from haploids. (2) Polygenetics of heterosis. (See article on page 5)
Butler, L., Department of Zoology, University of Toronto, Toronto 5, Canada.
Projects: (1) The inheritance of fruitsize. Data are being worked over and seeds accunulated for a critical test to find out wether the apparent linkages between size genes and certain qualitative characters are valid linkages or merely pleiotropic effects. (2) Gene action. Preliminary experiments are being carried out with the two types of green stem a (a\1\) and a1(a\2\) to study their effects in grafts and chimeras. (3) Linkage relations.
Cannon, Orson S., (in collaboration with V. Waddoups) United States Department of Agriculture, Utah Agricultural Experiment Station, Logan, Utah.
Projects: The development of curly top resistant tomatoes, and (2) the development of Verticillium resistant tomatoes.
Chanasyk, Victor, Department of Agriculture, Experimental Station, Beaverlodge, Alta., Canada.
Projects: To develop an early variety with the ability to set fruit and mature under low temperatures in approximately sixty days from planting in the field.
Currence, T. M., Division of Horticulture, University of Minnesota., Department of Agriculture, University Farm, St. Paul 1 Minn.
Projects: Activities at present are mainly devoted to problems to commercial use of heterosis. Combining ability of varieties, transfer of sterility to certain varieties and use of the F2 generation are being studied. We are also making and testing numerous crosses.
Dempsey, Wesley H., (Graduate Student) Division of Truck Crops, University of California, Davis, California.
Denby, L. G., Vegetable Department, Department of Agriculture, Experimental Station, Summerland, B. C., Canada.
Projects: (1) To develop varieties of extreme earliness and high quality, adapted to shipping as mature greens or semi ripes. (2) To breed mid season varieties, characterized by heavy yields of high quality fruit suitable for canning, but even in this case, earliness is at present and important factor, for the growers prefer to ship their early fruit to the fresh market, and later fruit to the cannery.
Emmert, E. M., Department of Horticulture, University of Kentucky, Lexington 29, Ky.
Project: Testing of varieties, particularly those of Ponderosa type that will set well under summer conditions.
Epps, James K., West Tennessee Experimental Station, Jackson Tennessee.
Project: Resistance to Fusarium Wilt, leaf diseases and fruit cracking.
Fineman, Zola M., 1105 Weshburn Ave. N., Minneapolis, Minnasota.
Finlay, Kieth W., Institute of Agriculture, University of Western Australia Nedlands, Australia.
Projects: (1) Resistance to spotted wilt and Fusarium Wilt. (2) Hybrid vigor and its commercial utilization.
Flory, W. S., The Blandy Experimental Farm, University of Virginia, Boyce, Virginia.
Frazier, W. A., Oregon State College Experimental Station Corvallis, Oregon.
Projects: Breeding for (a) fruit setting ability, (b) earliness, (c) quality, and (d) disease resistance. The later catagory is very poorly defined at the moment.
Gilbert, J. C., University of Hawaii, College of Agriculture, Honolulu 14, Hawaii.
Project: Breeding (See also D.C. McGuire) for resistance to nematode root knot.
Graham, T. O., Department of Horticulture, Ontario Agricultural College, Guelph, Canada.
Project: Improved methods utilizing heterosis.
Griffing, Bruce, Department of Genetics, Iowa State College, Ames, Iowa.
Project: Inheritance of quantitative characters. (see page 7 ).
Hardin, M., Geary, Oklahoma
Project: Breeding for wind, draught, heat, disease resistance and early maturity.
Hargrave, P. D., Department of Agriculture, Provincial Horticultural Station, Brooks, Alberta, Canada.
Projects: (1) The production of a determinate tomato earlier in maturity than Bounty, with the same shape and relative size, but of better colour. Also attempting to catalogue seedling characteristics of the parental material so that hybridity can be determined shortly after germination. (2) Search for male-sterile plants in large blocks of selected parental material.
Harrison, A. L., Plant Disease Laboratory, Texas Agricultural Experiment Station, Route 3, Yoakum, Texas.
Project: Breeding for resistance to : (1) Fusarium wilt, (2) Collar rot, (3) Root-knot, (4) Grey spot, (5) Blossom-end rot, (6) Puffing. (Listed in order of importance with reference to amount of work being conductedon them).
Helsel, Paul E., Associated Seed Grower, Inc., Franklin, Indiana.
Holmes, F. O., The Rockefeller Institute for Medical Research, 66th Street and New York Avenue, New York 21, N. Y.
Project: Resistance to viral diseases.
Hornby, C. A., Department of Horticulture, The University of British Colombia, Vancouver, Canada.
Huelsen, W. A., University of Illinois, Agricultural Experiment Station, Urbana, Illinois.
Projects: Production of varieties with high resistance to Fusarium wilt. (2) The adaptation of strains to prairie conditions. The first needs no explaination, but the second does. Ordinarily varieties during dry, hot years tend to run almost entirely to vine with very little fruit. This seems to be due to a combination of hot nights and relatively high nitrogen in the soil. Varieties have been isolated which produce well under these conditions. (3) Crossing and selection for quality factors.
Isbit, Arthur, Department of Horticulture, Michigan State College, East Lansing, Michigan.
Jenkins, J. A., Division of Genetics, University of California, Berkely California.
Project: Genetics and Evolution of the cultivated tomato with special interest in the (a) inheritance of size and shape differences, (b) inheritance of catotenoid differences.
Johnstone, Jr., Francis E., Department of Horticulture, The University of Georgia, Athens, Georgia.
Kerr, E. A., (Collaborating with D. L. Bailey and L. Butler), Horticultural Experiment Station, Vineland Station, Ontario, Canada.
Project: Isolation of the various genes for resistance to and immunity from the various races of Cladosporium fulvum.
Kihara, H., Laboratory of Genetics, Kyoto University, Koyoto, Japan.
Larson, R. E., Department of Horticulture, The Pennsylvania State College, State College, Pennsylvania.
Projects: (1) Use of steriles in production oh hybrid seed. (2) Embryo size and its relationship to hybrid vigor in segregating generations. (3) Combining ability in tomato lines. (4) Inheritance of qualitative and quantitative characteristics.
Lesley, J. W., University of California, Citrus Experiment Station, Riverside California.
Projects: (1) (with R. K. Soost) Genetics of interspecific hybrids of L. esculentum x L. peruvianum var. dentatum. Special attention is being paid to the behavior of some of the recessive mutants of esculentum when introduced to dentatum. (2) (with J. T. Middleton) Verticillium resistance in hybrids of L. esculentum x L. peruvianum var. dentatum and L. e. x L. hirsutum. (3)(with Margaret M. Lesley) Cytology of tomato races differing in satellite size, and cytology of several meiotic irregularities in race of L. esculentum and L. peruvianum.
Lewis D., John Innes Horticultural Institution, Bayfordbury, Hertford, Herts., England.
Projects: (1 ) Investigation of the "Rogue" or "Jack" character. (2) Induction of male sterile, plants for their use in hybrid production. (3) The inheritance and selection of inflorescence size.
Locke, L. F., United States Department of Agriculture, Southern Great Plains Field Station, Woodward, Oklahoma.
McGuire, Donald C. (with J. Gilbert), University of Hawaii, College of Ariculture, Honolulu 14, Hawaii.
Projects: (1) Breeding for resistance to tobacco Mosaic virus. (2) Combining disease resistance - Two methods are being followed: The production of F1 hybrids, combining of comercial or near-comercial lines carrying desired resistances; and combining lines homozygous for resistances early, then breeding up to comercial value. (3) Breeding for Bacterial Wilt resistance. (4) Producing F1 hybrids - a field survey of hybrids of various commercial lines.
Magruder, Roy, United Stated Department of Agriculture, Agricultural Research Administration, Washington 25, D. C.
Mariota-Trias, F., University of Puerto Rico, Agricultural Experiment Station, Rio Piedras, P. R.
Project: To Develope by breeding and sellection varieties of tomatoes suitable for local and export markets; and especially adapted for growing during the late spring and summer months.
Mikell, John (with J. C. Miller). Horticultural Research Department, Louisiana State University, Baton Rouge 3, Louisiana.
Mohr, Hubert C., Department of Horticulture, Agricultural and Mechanical College of Texas, College Station, Texas.
Projects: (1) Development of a variety resistant to southern blight from a cross involving a line of Lycopersicon pimpinellifolium which shows good resistance to this disease. (2) Inheritance of fruitfulness under high temperatures.
Morrison, Gordon, Burgess Seed and Plant Co., Galesburg, Michigan.
Projects: (1) Breeding new varieties. (2) Improvement of existing varieties by selection. (3) Utilization of hybrid. vigor.
Munger, H. M., Department of Plant Breeding, Cornell University, Ithaca, New York.
Projects: (1) Develop a tomato variety with the earliness of Earliana and the more desirable fruit characteristics of later varieties. (2) To develop varieties with resistance to cracking, desirable fruit size and color, and maturity with Stokesdale or earlier. (3) To develop market varieties with greater firmness of fruit which will permit handling of fruit which has been allowed to become more mature than it is harvested at present.
Nonnecke, I. L., Department of Agriculture, Experiment Station, Lethbridge, Alta., Canada.
Project: Breeding for adapted canning tomatoes of determinate type.
Odland, Martin L., Department of Horticulture, The Pennsylvania State College, State College Pennsylvania.
Ounsworth, L. F., Department of Agriculture, Experimental Station, Harrow, Ontario, Canada.
Project: Breeding os a vatiety or varieties as early as or earlier than the Bounty and particularly suited to the district.
Perry, Bruce A., Winter Green Experiment Station, Texas Agricultural Station, Winter Haven, Texas.
Projects: (1) Breeding of large fruited lines for summer production. (2) Development of a variety or varieties with multiple resistance (especially to fusarium collar rot, and grey leafspot), for spring and fall and for both canning and shipping.
Paddock, Elton F., Botany Department, Ohio State University, Colombus 10, Ohio.
Plaisted, Robert L., Division of Truck Crops, University of California, Davis, California (Graduate Student).
Poole, C. F., University of Hawaii, College of Agriculture, Honolulu 14, Hawaii.
Project: Improvement of ascorbic acid content.
Pound, Glenn S., Department of Plant Pathology, The University of Wisconsin, College of Agriculture, Madison 6, Wisconsin.
Projects: (1) Breeding for an early maturing canning variety. (2) Environmental factors related to defoliating diseases.
Powers, LeRoy, United States Department of Agriculture, Horticultural Field Station, Cheyenne, Wyoming.
Projects: (1) Breeding for earliness, yield, and quality. (2) Inheritance earliness of maturity and size of fruit.
Richardson, R. W., Division of Horticulture, University of Minnisota, Department of Agriculture, University Farm, St. Paul 1, Minnesota.
Project: Differential pollen tube growth. (Ph. D. thesis problem).
Rick, C. M., Division of Truck Crops, University of California, Davis, California.
Projects: (1) (with D. W. Barton) Morphology, genetics and cytology of the primary trisomics. (See Research Note on page ). (2) Cytogenetic relations between Lycopersicon species, especially the nature of the sterility barrier between L. esculentum and L. peruvianum. (3) Techniques to facilitate the production of F1 hybrid seed and (to a limited extent) testing performance of several F1 hybrid combinations.
Roever, W. E., West Tennessee Experiment Station, Jackson, Tennessee.
Projects: (1) (Major) - Development of greenwrap types for the Tennessee deal. (2) (Minor) - Development of better early commercial types. (3) (Minor) - Development of types that tend to hold mature fruits off the ground.
Samson, R. W., Department of Botany and Plant Pathology, Perdue University, Lafayette, Indiana.
Projects: (1) Breeding for disease resistance. (2) Breeding for increased vitamin content, especially vitamin C and beta-carotene. (3) Genetic determination of carotene and other flesh pigments.
Schermerhorn, Lyman G., Department of Horticulture, Rutgers University, New Brunswick, New Jersey.
Schultz, J. H., Department of Horticulture, North Dakota Agricultural College, Fargo, North Dakota.
Project: (Purnell 153) Breeding for earliness, yield, size, quality, ascorbic acid content and disease resistance.
Scott, G. W., Associated Seed Growers, Inc., Milpitas, California.
Projects: Breeding new varieties. Improvement of existing varieties.
Sen, Nirad K., 1/6 Golam Md. Road (first floor), Kalighat, Calcutta 26, India.
Projects: (1) Cytology of chromosomal aberrations. (2) Chemical mutagenesis. (See part 1.)
Skirm, George W., F. H. Woodruff & Sons, Milford, Connecticut.
Project: Evaluation and maintanance of commercial stocks of tomatoes.
Smith, P. G., Division of Truck Crops, University of California, Davis, California.
Projects: Breeding for resistance to Fusarium wilt, root-knot nematode, and spotted wilt.
Soost, Robert K., Citrus Experiment Station, University of California, Riverside, California.
Projects: (1) Incorporation of fusarium resistance into early market tomatoes for the desert-valley areas. (2) Dosage effects of Wo in trisomics, triploids, and tetraploids. (3) Inheritance of fruit color and incompatibility in backcrosses of L. esculentum x L. glandulosum.
Stair, Edw. C., Perdue University, School of Agriculture, Lafayette, Indiana.
Projects: (1) Breeding (in both field and greenhouse tomatoes) for better yield, color, and uniformity of size, better foliage for protection from the sun, and disease resistance especially for fusarium wilt and cladosporium. (2) Development of a number of hybrids.
Stark Francis C., Department of Horticulture, University of Maryland, College Park, Maryland.
Stevenson, E. C., Department of Horticulture, Purdue University, Lafayette, Indiana.
Project: Hybrid tomatoes and improved varieties for early market and canning.
Tezier, C., Tezier-Freres, Valence-Sur-Rhone, France.
Projects: (1) Breeding for earliness (especially in first three clusters) and for improved shipping quality. (2) Breeding for resistance to diseases especially mildew (Chytophtora infestans), virus diseases, drought and shoulder cracking.
Tomes, N. L., Department Botany and Plant Pathology, Purdue University, Lafayette, Indiana.
Projects: Collaborating on projects with R. W. Samson.
Walker, Darrell, Division Genetics, University of California, Berkeley 4, California.
Projects: (1) Stock-scion influence on fruit size. (2) Variation in diploids derived from haploids. (Ph. D. Thesis).
Walter, James M., Box 678, Manatee Station, University of Florida, Bradenton, Florida.
Project: To combine as quickly as possible all of the disease resistances available in a few varieties of tomato meeting the high horticultural requirements of our Florida green wrap market.
Whaley, W. Gordon, The Plant Research Institute, The University of Texas, Austin 12, Texas.
Projects: (1) An extensive morphological, anatomical, and physiological survey of the growth and development of one inbred line of tomato. (2) Genetic differences in the responce of tomato roots to thiamin, pyridoxine, and niacin and other substances in culture. (3) (In collaboration with W. V. Brown, Charles Heimsch, G. S. Rabideau, and A. E. Lee) The preparation of a summary of some selected data having to do with various aspects of the growth and development of the tomato plant.
Wortman, Sterling, The Rockefeller Foundation, Loundres 45, Mexico 6, D. F., Mexico
Project: Emphasis on adaptability to local growing conditions in tomato production areas, tolerance to high and low temperatures and drought and disease resistance.
Yeager, A. F., Agricultural Experiment Station, University of New Hampshire, Durham, New Hampshire.
Project: Breeding for extreme earliness, blight resistance and high ascorbic acid content.
York, Thomas L., Department of Plant Breeding, Cornell University, Ithaca, New York.
Young, P. A., Tomato Disease Laboratory, Route 4, Jacksonville, Texas.
Projects: (1) To develope commercial tomatoes with resistance to Sclerotium rolfsii causing southern blight. (2) To improve tomato selections (recent hybrids) with I-allele for resistance to Fusarium wilt. (3) To develope green-wrap tomatoes with resistance to cracking. (4) To develope green-wrap tomatoes with resistance to catfacing. (5) To test inheritance of new genetic characters of tomatoes.
Young, Robert E., University of Massechusetts, Agricultural Experiment Station, Field Station, Waltham 54, Massechusetts.
Projects: (1) Breeding tomatoes for use on the trellis as practiced in this sectionwith a particular interest in resistance to cracking and the use of hybrids. (2) Breeding of greenhouse tomatoes.
Downes, Jr., John D., Department of Horticulture, West Virginia University, Morgantown, West Virginia.
Project: (with M. Gallegly) Breeding for resistance to Phytophtora infestans consistant with retention of desirable horticultural features. No lines of L. esculentum or species hybrids tested have shown resistance.
Huskins, C. Leonard, (with John Woodard), Birge Hall, Department of Botany, The University of Wisconsin, Madison 6, Wisconsin.
Project: The effects of sodium nucleate on tomatoes.
Gabelman, Warren H., Department of Horticulture, University of Wisconsin, Madison 6, Wisconsin.