+ Translate

Identification of sources of resistance to Didymella bryoniae

, : Identification of sources of resistance to Didymella bryoniae. Horticultura Brasileira 14(1): 15-17

Some 70 accessions of watermelon (Citrullus lanatus) from the states of Bahia, Pernambuco and Maranhao, Brazil, and one from the USDA-ARS, were screened against D. bryoniae in 3 trials. Inoculum (3.18 x 105 conidia/ml) was sprayed on the aerial parts of the plant following wounding of cotyledons and young leaves. Plants were also inoculated using needles to puncture the stems. After inoculation, plants were incubated in a wet chamber for 48 h.

(PDF 0-2 workdays service)

Accession: 002863789

Submit PDF Full Text: Here

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Related references

Dai FuMing; L.J.nPing; G.W.iHong; Zhou BeiQi;, 2003: Induction of fruiting-body of Didymella bryoniae and identification of watermelon resistance to the pathogen. D. bryoniae could form many brown pycnidia on watermelon leaf juice agar B at 26-28 degrees C with 12 h darkness photoperiod after three weeks, but the black pseudothecia of the pathogen formed only on watermelon leaf juice agar C at 21-23 degrees...

Anonymous, 2006: Occurrence of gummy stem blight in watermelon in the state of Tocantins caused by Didymella bryoniae FT Ocorrencia do crestamento gomoso do caule em melancia no tocantins causado por Didymella bryoniae

Santos, G.R.; CafeFilho, A.C.; Reis, A., 2006: Didymella bryoniae resistance to fungicides in Brazil. Gummy stem blight (Didymella bryoniae) is one of the most important diseases of watermelon (Citrullus lanatus) worldwide. Chemical control, although widely adopted, cannot always avoid disease progress in the field. Resistance of the causal agent...

Somai, B.M.; Keinath, A.P.; Dean, R.A.; Zitter, T.A.; Farnham, M.W., 1997: PCR identification of differentiation of Didymella bryoniae and Phoma species. Phytopathology 87(6 SUPPL ): S92

Trionfetti Nisini, P.; Buzi, A.; Granati, E.; Chilosi, G.; Crino, P.; Magro, P., 2000: Screening for resistance to Didymella bryoniae in rootstocks of melon. Glasshouse evaluations of rootstocks of melon for resistance to Didymella bryoniae were conducted on different cucurbits previously selected as resistant or partially resistant to race 1,2 of Fusarium oxysporum f.sp. melonis. Cucumis anguria, C. f...

Everts, K.L., 1999: First report of benomyl resistance in Didymella bryoniae in Delaware and Maryland. Gummy stem blight, caused by D. bryoniae, is the most severe foliar disease of watermelon (Citrullus lanatus) in eastern Maryland and southern Delaware, USA. Under conducive environmental conditions, yield losses are high even when fields are spra...

Meer, Q.P. van der; Bennekom, J.L.; Giessen, A.C. van, 1975: Breeding for resistance to Didymella bryoniae (Mycosphaerella citrullina) in cucumber. A seedling inoculation method is described which gives symptoms within a week. The best resistance found by this method was in material from Japan, Russia and the USA.

Dias, R. de C.S.; Queiroz, M.A. de; Menezes, M.; Borges, R.M.E., 1999: Evaluation of watermelon resistance to Sphaerotheca fuliginea and Didymella bryoniae. Melon (Citrullus lanatus) genotypes were inoculated with S. fuliginea and D. bryoniae and evaluated for resistance. Five lines were resistant to S. fuliginea and 3 were moderately resistant to D. bryoniae.

Keinath, A.P.; Zitter, T.A.; Somai, B.M., 1996: Cross-resistance to thiophanate-methyl in Didymella bryoniae resistant to benomyl. Phytopathology 86(11 SUPPL ): S31

Utkhede, R.S.; Koch, C.A., 2002: Dot-blot technique for the detection and identification of Didymella bryoniae, a pathogen of greenhouse cucumbers. Canadian Journal of Plant Pathology 24(1): 90-91, March