Wolf Prize in Agriculture (1157 Pages)

John C. Walker

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38. Walker, J. C. Onion diseases and their control. U.S.D.A. Farm. Bul. 1066 (2nd

rev.), 18 pp. 1925.

39. Walker, J. C. Two undescribed species of Botrytis associated with the neck

rot diseases of onion bulbs. Phytopathology 15: 708-713. 1925.

40. Walker, J. C. Control of mycelial neck rot of onion by artificial curing. Jour.

Agr. Research 30: 365-373. l925.

41. Walker, J. C. Studies on disease resistance in the onion. Proc. Nat. Acad. Sci.

11: 183-189. 1925.

42. Walker, J. C., C. C. Lindegren, and Freda N. Bachmann. Further studies on

the toxicity of juice extracted from succulent onion scales. Jour. Agr. Research

30: 175-187. 1925.

43. Jones, L. R., J. C. Walker, and J. Monteith, Jr. Fusarium resistant cabbage:

progress with second early varieties. Jour. Agr. Research 30: 1027-1034.

1925.

44. Walker, J. C. Studies upon the inheritance of Fusarium-resistance in cabbage.

Phytopathology 16: 87. 1926.

45. Walker, J. C. The influence of soil temperature and soil moisture upon white

rot of Allium. Phytopathology 16: 697-710. 1926.

46. Walker, J. C. Botrytis neck rots of  onions. Jour. Agr. Research 33:

893-928. 1926.

47. Walker, J. C. Three new yellows-resistant mid-season cabbage varieties. Seed

World (Dec. 31, 1926.). 126.

48. Walker, J. C., and F. L. Wellman. Relation of temperature to spore germination

and growth of Urocystis cepulae. Jour. Agr. Research 32: 133-146. 1926.

49. Walker, J. C., John Monteith, Jr., and F. L. Tellman. A new Fusarium resistant

cabbage. Phytopathology 16: 72-73. 1926.

50. Walker, J. C. Newer aspects of breeding yellows-resistant cabbage. Nkt. Grow.

Jour. 38: 412-414. Also in The Canner 62 (10-2): 158. 1926.

51. Walker, J. C. Diseases of cabbage and related plants. U.S.D.A. Farm. Bul.

1439, 30 pp. 1927.

52. Walker, J. C. Onion curing to prevent decay while in storage. U.S.D.A. Yearbook

1926: 558-559. 1927.

53. Walker, J. C., John Monteith, Jr., and F. L. Wellman. Development of three

midseason varieties of cabbage resistant to yellows (Fusarium conglutinans

(Woil.). Jour. Agr. Research 35: 785-809. 1927.

54. Walker, J. C. Yellows-resistant midseason cabbage varieties now available.

Wis. Horticulture 17: 113-114. 1927.

55. Walker, J. C. An onion disease under successful control. Wis. Horticulture

17: 155-156. 1927.

56. Walker, J. C. Spraying and dusting calendar for North Central States

(Minnesota, Wisconsin, and Michigan). Amer. Produce Grower, April, 1927.

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Wolf Prize in Agriculture

57. Walker, J. C. New yellows-resistant cabbage varieties. Nkt. Grow. Jour.

40: 273-281. 1927.

58. Walker, J. C., and F. L. Weilman. A survey of the resistance of  subspecies of

Brassica oleracea to yellows (Fusarium conglutinans). Jour. Agr. Research 37:

233-241. 1928.

59. Walker, J. C. Onion diseases and their control. U.S.D.A. Farm. Bul. 1060 (3rd

rev.), 18 pp. 1928.

60. Walker, J. C., and F. L. Weilman. A Fusarium resistant cabbage of Jersey

Wakefield type. Phytopathology 18: 142. 1928.

61. Walker, J. C. Yellows resistant cabbage developed by plant breeding. U.S.D.A.

Yearbk 1928: 635-636. 1929.

62. Walker, J. C., K. P. Link, and H. R. Angell. Chemical aspects of disease resistance

in the onion. Science 69: 555. 1929.

63. Walker, J. C., K. P. Link, and H. R. Angell. Chemical aspects of disease resistance

in the onion. Proc. Nat. Acad. Sci. 15: 845-850. 1929.

64. Walker, J. C. Some remarks on the physiological aspects of parasitism. Proc.

Int. Cong. Plant Sciences 2: 1263-1270. 1929.

65. Link, K. P., H. R. Angell, and J. C. Walker. The isolation of protocatechuic

acid from pigmented onion scales and its significance in relation to disease

resistance in onions. Jour. Biol. Chem. 81: 369-375. 1929.

66. Link, K. P., A. D. Dickson, and J. C. Walker. Further observations on the

occurrence of protocatechuic acid in pigmented onion scales and its relation

to disease resistance in the onion. Jour. Biol. Chem. 84: 719-725. 1929.

67. Walker, J. C. The nature of yellows resistance in cabbage. Phytopathology 20:

114-115. 1930.

68. Walker, J. C. Inheritance of Fusarium resistance in cabbage. Jour. Agr. Research

140: 721-745. 1930.

69. Walker, J. C., and Rose Smith. Effect of environmental factors upon the

resistance of cabbage to yellows. Jour. Agr. Research 141: 1-15. 1930.

70. Smith, Rose, and J. C. Walker. A cytological study of cabbage plants in strains

susceptible or resistant to yellows. Jour. Agr. Research 141: 17-35. 1930.

71. Angell, H. R., J. C. Walker, and K. P. Link. The relation of protocatechuic acid

to disease resistance in the onion. Phytopathology 20: 1431-1438. 1930.

72. Walker, J. C. Progress in development of yellows-resistant cabbage. The Canner

70 (10-2): 88. 1930.

73. Walker, J. C. Onion diseases and their control. U.S.D.A. Farm. Bul. 1060

(14th rev.), 214 pp. 1931.

74. Walker, J. C. Resistance to Fusarium wilt in garden, canning, and field peas.

Wis. Agr. Expt. Sta. Res. Bul. 107, 15 pp. 1931.

75. Walker, J. C. Propagation of yellows-resistant cabbage seed. The Canner 72

(10-2): 71. 1931.

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John C. Walker

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76. Walker, J. C. Pea disease situation in Wisconsin. The Canner 72 (10-2):

123-124. 1931.

77. Walker, J. C. Cabbage variety Jersey Queen adds early strain resistant to

yellows. U.S.D.A. Yearbook 1932: 119-121. 1932.

78. Walker, J. C. Present status of cabbage improvement with regard to kraut

type and disease control. The Canner 74 (11-2): 51. 1932.

79. Walker, J. C. Comparative studies of peas resistant and susceptible to Fusarium

wilt. Phytopathology 23: 36. 1933.

80. Walker, J. C. Relation of soil fertility to incidence of Aphanomyces root rot of

pea. Phytopathology 23: 36. 1933.

81. Walker, J. C. Comparison of yellows resistant kraut cabbage varieties in

1932. The Canner 76 (11-2): 4l-42. 1933.

82. Walker, J. C., and W. C. Snyder. Pea wilt and root rots. Wis. Agr. Expt. Sta.

Bul. 424, 16 pp. 1933.

83. Link, K. P., and J. C. Walker. The isolation of catechol from pigmented onion

scales and its significance in relation to disease resistance in onions. Jour.

Biol. Chem. 100: 379-383. 1933.

84. Walker, J. C. The Jersey Queen cabbage. Ann. Rpt. Md. Agr. Soc. 1932 (Rpt.

Md. Veg. Growers’ Assoc., p. 24-26). 1933.

85. Walker, J. C. Yellows-resistant lines of Jersey Wakefield cabbage. Jour. Agr.

Research 46: 639-648. 1933.

86. Blank, L. N., and J. C. Walker. Inheritance of Fusarium resistance in Brussels

sprouts and kohlrabi. Jour. Agr. Research 46: 1015-1022. 1933.

87. Pierce, W. H., and J. C. Walker. The development of mosaic resistant Refugee

beans. Canner 77 (26): 7-9. 1936.

88. Walker, J. C. Production of cabbage seed free from Phoma lingam and

Bacterium campestre. Phytopathology 24: 158-160. 1934.

89. Walker, J. C. Diseases of cabbage and related plants. U.S.D.A. Farm. Bul.

1439 (1st rev.), 28 pp. 1934.

90. Walker, J. C., and Albert Murphy. Onion-bulb decay caused by Aspergillus

alliaceus. Phytopathology 24: 289-291. 1934.

91. Boswell, V. H., W. C. Edmundson, O. H. Pearson, J. E. Knott, C. E.

Myers, R. A. McGinty, W. H. Friend, H. H. Zimmerley, and J. C. Walker.

Descriptions of types of principal American varieties of cabbage. U.S.D.A.

Misc. Publ. 169, 22 pp. 1934.

92. Larson, R. H., and J. C. Walker. Soil treatment in relation to clubroot of

cabbage. Jour. Agr. Research 48: 749-759. 1934.

93. Walker, J. C., and L. N. Blank. Fusarium-resistant Danish Ballhead cabbage.

Jour. Agr. Research 49: 983-989. 1934.

94. Snyder, W. C., and J. C. Walker. Fusarium near-wilt of pea. Cent. f. Bakt. II.

91: 355-378. 1935.

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