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Registration of 10 Biotype E Greenbug‐Resistant Sorghum Germplasm Lines
Author(s) -
Peterson G. C.,
Archer T. L.,
Teetes G. L.,
Jones J. W.
Publication year - 1991
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/cropsci1991.0011183x003100020086x
Subject(s) - entomology , germplasm , library science , biology , agricultural experiment station , sorghum , humanities , ecology , horticulture , agriculture , art , computer science
ghum midge was practiced at Corpus Christi, Beeville, College Station, and Lubbock, TX. Advanced selections were evaluated for midge resistance at Corpus Christi, Beeville, and College Station, TX, and Tifton, GA. The lines sustain midge damage equal to or less than that of previous sorghum midge resistant germplasms released from the Texas Agricultural Experiment Station (1,2,3) and most possess better yield potential. Several lines will produce hybrids with excellent yield potential in the absence of the insect. Reaction to insecticide phytotoxicity will vary (1.0 to 4.8 on a scale of 1 = no leaf burn to 5 = 100% leaf burn) with most lines damaged more than RTx430 (1.0). Tx2870, Tx2874, Tx2885, Tx2886, Tx2887, Tx2889, and Tx2890 are resistant to head smut caused by Sporisorium holci-sorghi (Rivolta) K. Vanky at Berclair, TX. The lines possess a moderate to excellent level of resistance to rust caused by Puccinia purpurea Cooke at Isabela, PR. All lines are susceptible to anthracnose caused by Colletotrichum graminicola (Ces.) G. W. Wils. at Experiment, GA, and Isabela, PR, and contain no known genes for resistance to downy mildew caused by Peronosclerospora sorghi (W. Weston & Uppal) C.G. Shaw, Pathotype 3. Seed will be maintained and germplasm (100 seed) will be distributed by the Texas Agricultural Experiment Station, Rt. 3, Box 219, Lubbock, TX 79401-9757. G. C. PETERSON,* G. L. TEETES, B. R. WISEMAN, A. SOTOMAYOR-RlOS, J. W. JONES, AND K. SCHAEFER (4)