Inheritance of Resistance to Target Leaf Spot Caused by Bipolaris cookei (SACCARDO) SHOEMAKER in Sorghum (Sorghum bicolor MOENCH)

DOI JASI Web Site

Bibliographic Information

Other Title
  • Bipolaris cookei (SACCARDO) SHOEMAKERによるソルガム紫斑点病抵抗性の遺伝
  • Bipolaris cookei(Saccardo)Shoemakerによるソルガム紫斑点病抵抗性の遺伝〔英文〕
  • Bipolaris cookei Saccardo Shoemaker ニ ヨ

Search this article

Description

The mode of inheritance of resistance to target leaf spot caused by Bipolaris cookei in sorghum was determined. Eight resistant (R) and susceptible (S) inbred lines were selected based on the results of preliminary seedling inoculation tests in a greenhouse. The lesions on the resistant lines were small, chlorotic and clearly different from the elongated ones on the susceptible lines. The results of the field test agreed with those of the greenhouse test, indicating that the seedling inoculation method was suitable for evaluating the resistance. Crosses were made between the selected inbred lines in the combinations of R × S, S × R, R × R, S × S and the F_1, F_2 and backcross progenies obtained were evaluated for resistance in the greenhouse. Most of the F_1, F_2 and backcross progenies segregated for resistance in a ratio expected for the resistance conferred by a single recessive gene. The results showed that the resistance to target leaf spot was controlled by a single recessive gene.

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top