Morphological identification and incidence of purple seed stain in soybean cultivars.

Autor: Uge, Emerensiana, Yusnawan, Eriyanto, Inayati, Alfi
Předmět:
Zdroj: AIP Conference Proceedings; 2024, Vol. 2957 Issue 1, p1-8, 8p
Abstrakt: Purple seed stain (PSS) infects soybean seeds which may cause seed deterioration. Infected seeds reduce vigor and growth of soybean crops. However, information of this disease is still limited in Indonesia. Therefore, this study aimed to identify the causal agent of the PSS disease and to observe disease incidence on 69 soybean varieties during storage. Blotter test was performed for pathogen identification. Disease incidence was conducted by counting the number of symptomatic seeds in 100 seed samples of each variety and repeated thrice. A seed germination test was carried out to investigate the quality of soybean seeds. Seven variations of PSS were observed on soybean seeds. Cercospora kikuchii was associated with the PSS. This fungus had dull white mycelial type, slight rough texture, and long single and septate conidia. Twenty-five soybean varieties were infected by PSS with the disease incidence percentage of 2-23%. Infected seeds showed a lower germination percentage than that of healthy seeds. Therefore, the use of seeds without PSS symptom should be taken into account in soybean cultivation. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index