Inheritance of mungbean tolerance to microessential elements deficiency in Takhli soil series
1999
Sumontha Nopparat | Peerasak Srinives | Rungsarid Kaveeta | Suradate Jintakanon (Kasetsart Univ. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture)
Inheritance of mungbean tolerant to microessential element deficiency in Takhii Soil Series wa studied in 4 mungbean crosses. Each cross consisted of female parent (P1), male parent (P2), F1, F2, and backcross progenies of female and male parents (BC1 and BC2). They were sown in the field of Nakhon Sawan Field Crops Research Center where Takhli soil is prominet, Chlorosis, the indicatitor of non-tolerance to microessential element deficiency, is found governed by 2 loci of gene. A dominant gene in one locus has an epistatic effect (inhibiting action) on genes in the other. The expected rations between number of plants showing chlorosis vs normal plants in F2, BC1 and BC2 were 3:13, 1:1 and 0:1, respectively. Modes of gene action was also investigated in agronomic traits viz., plant height, days to flowering, days to maturity, number of pods per plant, number of seeds per pod, one hundred seed weight, dry matter per plant, and number of wrinkled seeds per plant. All types of gene action played significant role in controlling genetic variation of these traits.
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