DIPLOIDIZATION AND FERTILITY IMPROVEMENT IN ADVANCED AUTOTETRAPLOIDS OF TRIGONELLA FOENUM-GRAECUM

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Published: Nov 25, 1992
DOI: https://doi.org/.
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Keywords:
Trigonella foenum-grllecum, autotetraploid, diploidization, meiotic associations.

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JAYA SINGH
Plant Genetics Unit, Botany Department, Lucknow University, Lucknow 226007
ANIL K. SINGH
Plant Genetics Unit, Botany Department, Lucknow University, Lucknow 226007
S. S. RAGHUVANSHI
Plant Genetics Unit, Botany Department, Lucknow University, Lucknow 226007

Abstract

Meiotic analysis of four genotypes of autotetraploid Trigonella foenum-grat!Cllm over generations (C., Cs and C12 generations) indicated that there is gradual decrease in multivalents and univalents with simultaneous increase in bivalents; thus, revealing diploidization process. Though autotetraploid Trigollella is vegetatively vigorous and meiotically regular after 12 years of selection, the seed yield is still less than 50% of their diploid progenitors. Therefore, it maybe concluded that poorfertility in autotetraploid T. foellumgraecum is controlled by certain genetical factors which could only be handle4 by genetic manipulations.

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How to Cite
SINGH, J., SINGH, A. K., & RAGHUVANSHI, S. S. (1992). DIPLOIDIZATION AND FERTILITY IMPROVEMENT IN ADVANCED AUTOTETRAPLOIDS OF TRIGONELLA FOENUM-GRAECUM. INDIAN JOURNAL OF GENETICS AND PLANT BREEDING, 52(04), 385–389. https://doi.org/.
Issue
Vol. 52 No. 04 (1992): Indian Journal of Genetics and Plant Breeding
Section
Research Article
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