Resistance of Polish lines and hybrids of watermelon [Citrullus lanatus (Thunb.) Matsum et Nakai] to Fusariuim oxysporum at the seedling stage
2002
Swiader, M. (Polish Academy of Sciences, Warszawa (Poland). Botanical Garden) | Pronczuk, M. (Plant Breeding and Acclimatization Institute, Radzikow (Poland)) | Niemirowicz-Szczytt, K. (Warsaw Agricultural University (Poland). Dept. of Plant Genetics)
Watermelon is a species cultivated in the hot climate or in the greenhouse. Since recently it has also started to be grown in the open in the Polish climate. This species is frequently at risk of Fusarium oxysporum infection. Between 1996-97 ten inbred lines and nine hybrids of Polish origin were tested for resistance to this pathogen. The test was conducted with the use of four isolates of F. oxysporum: three from Polish infected plants, while the fourth from UK. In the three series of tests the control plants were Pannonia F1 and Sugar Baby. No inbred line or hybrid was found to be highly resistant to the pathogen. However, it was possible to identify four lines and five hybrids showing a higher level of resistance as compared with the control. The level of hybrid resistance was determined by comparison with the parental genotypes
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