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Breeding for Resistance to the Sorghum Shoot Fly 1
Author(s) -
Doggett H,
Starks K. J.,
Eberhart S. A.
Publication year - 1970
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/cropsci1970.0011183x001000050023x
Subject(s) - sorghum , biology , seedling , shoot , infestation , resistance (ecology) , heritability , agronomy , sorghum bicolor , cultivar , pest analysis , sweet sorghum , horticulture , genetics
Screening sorghum ( Sorghum bicolor (L.) Moench) varieties for seedling resistance to the sorghum shoot fly ( Atherigona varia , Meigen) gave inconsistent results, and “recovery resistance” (tolerance) proved a better character. When levels of pest attack were high, infestation levels exceeded 90%, indicating that there was little worthwhile seedling resistance in the sorghums being tested. In contrast, good recovery resistance was shown by the cultivars ‘Serena’ and ‘Namatare,’ and more than 70% of the infested plants recovered and yielded normally. Recovery resistance was associated with good yield from tillers, and heritability was fairly high. ‘Namatare’ proved a successful parent, and grain sorghums with a combination of good shoot fly recovery resistance and yield were developed from crosses between Namatare and susceptible sorghums.