Premium
Screening Field Peas for Resistance to White Mold 1
Author(s) -
Blanchette Bonnie L.,
Auld Dick L.
Publication year - 1978
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1978.0011183x001800060018x
Subject(s) - biology , inoculation , sativum , horticulture , pisum , cultivar , plant disease resistance , botany , genetics , gene
Breeding lines and plant introductions were screened in a greenhouse to determine if genetic resistance to white mold ( Sclerotiorum sclerotiorum (Lib) de Bary) exists in field pea ( Pisum sativum L.). All experiments were conducted in mist chambers maintained at approximately 18 C and 90% relative humidity. Eleven‐day‐old seedlings were inoculated by placing one fungus infested oat kernel next to the base of each stem. Three days after inoculation, disease severity was determined by estimating the length of stem lesions. Significant differences in disease severity were detected by this visual scoring method. The following plant introductions, breeding lines, and cultivars were more resistant than the susceptible check (‘Garfield’): PI 155109, PI 166188, PI 189171, PI 261622, PI 262189, PI 263027, PI 272191, PI 272205, PI 272209, ID 89‐1, ID 2, Dark Skin Perfection, Perfection 132, and Wisconsin Perfection.