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Patricia E. Hung, Vincent A. Fritz, Thor Kommedahl, Albert H. Markhart III, and Luther Waters Jr.

Experiments were conducted to determine if the fungicide imazalil infused into shrunken-2 sweet corn (Zea mays L. var. rugosa Bonaf.) seed via acetone could protect against soil- and seedborne fungi enough to improve germination and vigor. `Florida Staysweet' and `Crisp-n-Sweet 710' seeds were infused for 0.25 hours with 1% or 2% (w/w) imazalil-acetone (LA) solutions, air-dried, and subjected to a modified laboratory seedling growth cold test using sterile soil or soil inoculated with Fusarium moniliforme Sheldon. Both IA concentrations significantly reduced the incidence of diseased seedlings in soil inoculated with F. moniliforme when compared to nontreated controls. Neither treatment significantly reduced the incidence of seedborne fungi. Chemical name used: 1-[2-(2,4-dichlorophenyl)-2-(2-propenyloxy)ethyl-H-imidazole (imazalil).

Open access

Rong Zhang, Zhubing Yan, Yikun Wang, Xuesen Chen, Chengmiao Yin, and Zhiquan Mao

Bio-Tek, Norcross, GA). Real-time fluorescence quantitative polymerase chain reaction (RT-qPCR) was performed on the Bio-Rad CFX96 quantitative PCR instrument to determine the gene copy number of Fusarium oxysporum and Fusarium moniliforme . The 25

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James L. Brewbaker and Chifume Nagai

“Waimanalo Supersweet” will be released at the time of the 1992 ASHS meeting in Hawaii. A singlecross supersweet corn based on the brittle gene, “Waimanalo Supersweet” represents over 50 generations of inbreeding and backcrossing in Hawaii. Successive projects involved the development of sugary inbreds and their conversion to Mv. Ht. Rp-d and brittle genes. The inbred parents have very limited temperate germplasm and are relatively daylength sensitive. This single cross hybrid and its related 3X (“Hawaiian Supesweet #10”) and OP variety (“Hawaiian Supersweet #9”) show tolerance to Puccinia sorghi rust and Fusarium Moniliforme kernel rot greatly in excess of commercial sweet corns to which they have been compared, and they have performed capably throughout the tropics. Available data on pest tolerance, growth and quality will be summarized.

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John A. Juvik, Maurice C. Jangulo, John M. Headrick, Jerald K. Pataky, and William F. Tracy

Ten cycles of simple mass selection for increased field emergence and kernel weight in a population of shrunken2 (sh2) maize affected various kernel and seedling traits. Ten of 29 variables measured were intercorrelated and were included in the first principal factor of a principal component, factor analysis. The eight variables in factor 1 that increased with cycles of selection were: emergence and kernel weight (the two selection criteria) plant height 41 days after planting (a measure of seedling vigor), uniformity of stand, total starch content per kernel total carbohydrate content per kernel, concentration of starch, and starch content per kernel. The two variables in factor 1 that decreased were: conductivity of electrolytes that leached from imbibing seeds and symptomatic infection of kernels by fungi. Factor 1 was a “seed and seedling quality” factor. The other 19 variables formed five principal factors that primarily were “sugar,” “pericarp,” and “asymptomatic fungal infection” factors. These five factors and the variables from which they were formed, were not affected by selection. These results suggest that seed and seedling quality factors can be improved by selection in a sh2 population without affecting sweetness or tenderness. These results also suggest that although selection for increased emergence and kernel weight lowered the incidence of symptomatic infection by fungi, the population was not improved specifically for resistance to Fusarium moniliforme Sheldon.

Open access

Kathryn Homa, William P. Barney, William P. Davis, Daniel Guerrero, Mary J. Berger, Jose L. Lopez, Christian A. Wyenandt, and James E. Simon

. D Appl. Phys. 50 30 305401 doi: 10.1088/1361-6463/aa77c8 Anderegg, J. Guthrie, J.W. 1981 Seedborne Fusarium moniliforme and seedling infection in hybrid sweet corn Phytopathology 71 11 42 51 doi: 10.1094/phyto-71-1196 Andrasch, M. Stachowiak, J

Open access

Haiyan Wang, Ran Chen, Yuefan Sheng, Weitao Jiang, Rong Zhang, Xuesen Chen, Xiang Shen, Chengmiao Yin, and Zhiquan Mao

Ecol. 37 07 684 690 doi: 10.3724/SP.J.1258.2013.00071 Jiang, W.T. Yin, C.M. Duan, Y.N. Xiang, L. Wang, M. Chen, X.S. Shen, X. Zhang, M. Mao, Z.Q. 2018 Phloridzin and Fusarium moniliforme aggravated the replanted soil

Open access

Jacqueline Joshua and Margaret T. Mmbaga

Virulence of Fusarium moniliforme isolates on maize plants in relation to fumonisin and ergosterol levels Plant Dis. Protect. 109 491 505 Avanzato, M.V. Rothrock, C.S. 2010 Use of selective media and baiting to detect and quantify the soilborne plant

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Cui-ping Hua, Zhong-kui Xie, Zhi-jiang Wu, Yu-bao Zhang, Zhi-hong Guo, Yang Qiu, Le Wang, and Ya-jun Wang

. Fusarium oxysporum is the main pathogenic fungus of Lanzhou lily. Fusarium moniliforme, Fusarium tricinctum, and Fusarium solani can also result in wilt disease ( Shang et al., 2014 ). In addition to the impact of microorganisms, the toxic effects of

Open access

Hanan M. El-Hoseiny, Mohamed N. Helaly, Nabil I. Elsheery, and Shamel M. Alam-Eldein

areas ( Crane and Campbell, 1994 ) and has been early reported in Egypt ( Attiah, 1955 ). It could be ascribed to physiological disorders that are related to biotic stress (e.g., acarological, viral or fungal disease Fusarium moniliforme ) or abiotic