1Dept. of Molecular Biology and BiotechnologyS.V. Agricultural College, Tirupati
2Dept. of Genetics & Plant Breeding, IFT, Regional Agricultural Research Station, Tirupati
3Dept. of Crop Physiology, IFT, Regional Agricultural Research Station, Tirupati
4Dept. of Plant Pathology, IFT, Regional Agricultural Research Station, Tirupati
Dept. of Genetics & Plant BreedingS.V. Agricultural College, Tirupati
*Email: appagari@gmail.com
Online Published on 10 August, 2022.
Transgressive segregation is a phenomenon where the progenies of a cross combination will possess the values exceeding both the parents for one or more characters. The present investigation was carried out to identify desirable transgressive segregants for maturity and yield in five blackgram crosses viz., LBG-752 x TBG-104, LBG-752 x PU-31, LBG-752 x TU-40, TU-40 x TBG-104 and IPU-2-43 x TBG-104. The highest frequency of desirable segregants for both yield and maturity were observed in the cross LBG-752 x TBG-104 (13.75%). High frequency of such favorable transgressive segregants indicates that the parents possess diverse alleles and genes governing respective characters from which it could be inferred that there is an ample scope to bring in beneficial alleles into a single genetic background through careful selection in further generations. Meticulous selection schemes along with proper pedigree maintenance can aid in successful development of short duration and high yielding blackgram varieties from these segregants.
Blackgram, Early maturity, High yield, Transgressive segregants
