Inheritance Of Resistance To Different Races Of Piricularia Oryzae Part III

Sung-ching Hsieh; Ming-hwa Lin; Sheng-tian Yen; Hsiao-lan Liang

Inheritance Of Resistance To Different Races Of Piricularia Oryzae Part III

Journal

臺灣省農業試驗所報告

Journal Issue

26

Pages

47-63

Date Issued

1967-12

Date

1967-12

Author(s)

Sung-ching Hsieh

Ming-hwa Lin

Sheng-tian Yen

Hsiao-lan Liang

URI

https://scholars.tari.gov.tw/handle/123456789/4545

Abstract

1) The F2 and F3 hybrids between 28 japonica rice strains were tested for blast disease resistance by using four different races, 4, 13, 22 and 25. Spore suspension was inoculated with rice seedlings at the five-leaf stage by using both spraying and injection methods. 2) The resistance to the four races were found to be each controlled by a resistant gene. The four resistance genes found, Pi4, Pi13, Pi2 and Pi25 were independent of one another in some cases. Also they were not linked with marker genes involved in the crosses, A,P, Ps, lg, Bf, I-Bf, d2, Rc and Ph. 3) The resistances to leaf and neck blasts widely varied due to variety, year, crop season and location. In 81% of strains so far tested, leaf and neck resistances were correlated, and appeared to be controlled by the same genes. In the remaining 19%, the leaf and neck resistances were not correlated. Whether or not this is due to the occurrence of different races remains unknown.

Publisher

台灣省農業試驗所

Type

journal article

File(s)

Name

publication_history_no26-4.pdf

Size

251.99 KB

Format

Adobe PDF

Checksum

(MD5):50751de1e7be19eb00c66cb099d83507