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Performance Studies in F 6 Lines of Autotetraploid Fenugreek
Author(s) -
Singh J.,
Raghuvanshi S. S.,
Singh A. K.
Publication year - 1991
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.1991.tb01214.x
Subject(s) - selfing , trigonella , biology , hybrid , meiosis , interspecific hybridization , botany , fertility , horticulture , point of delivery , genetics , gene , population , demography , sociology
Hybridization followed by pedigree selection was carried out between two autotetraploid strains of fenugreek ( Trigonella foenum‐graecum L.). Morphological and cytological investigations were carried out in two autotetraploid parents, their F 1 hybrids and F 6 lines derived from F 1 after selfing. Cytomorphological data of F 6 lines were compared with those of F 1 , hybrids and of their parents. The hybrid plants were intermediate with respect to different vegetative traits, however, they showed increased seed set as compared to their autotetraploid parents. The mean pod number per plant in F 6 was one and half times as high as one of the high yielding tetraploid parents and approximately twice as high as that of F 1 hybrid. Meiosis in F 6 was more regular than in F, and the parents. Thus, hybridization followed by pedigree selection is helpful not only in regularizing the meiotic behavior, but vigour and seed fertility have also improved in autotetraploid fenugreek.