Using potassium chlorate (KClO3) to distinguish indica-japonica hybrids from indica and japonica parents

Sun, Y.W.

International Rice Research Notes 18(2): 8

1993


Accession: 002541251

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Abstract
Seedlings of 6 F1 indica-japonica rice hybrids and their parents were soaked in 1% KClO3 solution for 24 h and then stored for 4-5 days at 30 degrees C. An injury index rating was calculated from the number of affected seedlings and significant differences tested using analysis of variance. Japonica parents were tolerant of KClO3 and indica parents were sensitive. Reaction of hybrids was intermediate between the parents and thus this test can be used to differentiate true hybrids from pure cultivars.