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Inheritance of Leaf Blight Reaction in Sudan Grass 1
Author(s) -
Drolsom P. N.
Publication year - 1954
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1954.00021962004600070010x
Subject(s) - blight , library science , citation , agricultural experiment station , political science , horticulture , agriculture , geography , biology , computer science , archaeology
ENETIC studies concerning disease reaction in Sudan G grass, Sorghtlna mdanense (Piper) Stapf., have been limited. Garber and Chilton (1) reported on the inheritance of physiological spotting, a non-parasitic disease, and concluded that it was complex. LeBeau and Coleman ( 5 ) found that resisltance to anthracnose was conditioned by a single dominant gene. The inheritance of reaction to leaf blight in Sudan grass, incited by Helminthosporjtim turcicum Pass., was investigated by Snyder (7). He found susceptibility to be dominant in the F,, F, and backcross data suggested single factor inheritance. Data from studies of F, lines indicated that F, populations consisted of a rninimwn of three genotypes. In the cross of Tift x Sweet Sudan, disease reaction of the F, progeny could not be interpreted by a single gene pair hypothesis. The inheritance of reaction to H. ttlvcicztm in corn has been studied by Genter ( 2 ) , who found that susceptibility to leaf blight depended upon the action of several genes intermedialte or partially dominant in reaction. Jenkins and Robert (3) and Jenkins, et al. (4) concluded that resistance to leaf blight in corn is governed by many genes with some genes having major effects. The purpose of this study was to investigate further the manner of inheriltance of leaf blight reaction in Sudan grass.