000 02232nab a22003017a 4500
999 _c61900
_d61892
001 61900
003 MX-TxCIM
005 20211006085210.0
008 180103s1977 xxu|||p|op||| 00| 0 eng d
022 _a0031-949X
022 _a1943-7684 (Online)
024 8 _ahttps://doi.org/10.1094/Phyto-67-1113
040 _aMX-TxCIM
041 _aeng
100 1 _913215
_aSumner, D.R.
245 1 0 _aEpidemiology and control of bacterial leaf blight of corn
260 _aSt. Paul, MN (USA) :
_bAmerican Phytopathological Society,
_c1977.
500 _aPeer review
520 _aBacterial leaf blight, which is caused by Pseudomonas avenae, was widespread in corn in southern Georgia from 1973 through 1976. The survival of the bacterium was determined by means of a basal salts agar medium containing D-sorbitol and neutral red (SNR agar). The bacterium did not survive in infected leaves on dead plants 2 mo after maturity, but did survive for 2 wk in infected green leaves buried in soil. Pseudomonas avenae was pathogenic to many other cultivars of gramineous species in greenhouse tests, but it was not isolated from plants other than corn in nature. Most cultivars of corn were resistant to the bacterium, but several were highly susceptible. The apparent infection rate (r) in a susceptible cultivar was 0.18 to 0.21 plants/day, compared with 0.13 to 0.16 plants/day in several resistant cultivars, during the 3- to 4-wk period before tasseling. Lesions were relatively small on leaves of resistant plants, and streaking and leaf shredding rarely occurred. The disease did not become epidemic in any of the cultivars after tasseling. The bacterium caused leaf blight but not stalk rot, shank rot, or ear rot. The in vitro dry matter digestibility of blighted plants at tasseling was not different from that of green plants.
546 _aText in English
650 7 _aMaize
_gAGROVOC
_2
_91173
650 7 _92466
_aEcology
_2AGROVOC
650 7 _913216
_aXanthomonas oryzae
_2AGROVOC
650 7 _913217
_aPseudomonas avenae
_2AGROVOC
700 1 _94679
_aSchaad, N.W.
773 0 _gv. 67, p. 1113-1118
_tPhytopathology
_x0031-949X
_dSt. Paul, MN (USA) : American Phytopathological Society, 1977.
_w444676
942 _2ddc
_cJA
_n0