Analysis of Heterosis and Combining Ability in Some Morphological Characters in Sesame (Sesamum indicum L.)

IPGR, BG-4022 Sadovo, Bulgaria


GEORGIEV, S., S. STAMATOV and M. DESHEV, 2011. Analysis of heterosis and combining ability in some morphological characters in sesame (Sesamum indicum L.). Bulg. J. Agric. Sci., 17: 456-464

This study covers two Bulgarian crosses between high-yield varieties sesame Milena and Sadovo 1 to shattering capsules and promising line non-shattering capsules Sadovo 3959. Used incomplete dialel crosses. Measured are 10 morphological traits, the mode of inheritance their heterosis effect inheritance in a broad sense, inheritance in the strict sense and the presence of additive-dominant model. Variety Sadovo 1 used as a maternal form transmitted high-dominant elements yield high heterosis effect in such cases and missing reciprocal action confirmed additive-dominant model. Milena variety also transmits these dominant elements. Signs responsible for suitable for mechanized harvesting of the plant architecture in Sadovo 3959 are inherited dominantly.

Key words: sesame, heterosis, inheritance, additive-dominant model
Abbreviations: BP - genuine heterosis; d / a - ratio of dominant to additive parameter); Gca - Inheritance in the broad sense; Sca - Inheritance in the strict sense

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