Inheritance pattern of spikelet fertility restoration in hybrid Rice
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Abstract
The information on the genetic control of fertility restoration of cytoplasmic male sterility system facilitates formulation of effective breeding plans for efficient transfer of fertility restoring genes to promising breeding lines and subsequently contributes to the development of superior restorer lines. The present study was undertaken to elucidate the genetic basis of fertility restoration ability of two restorers of wild abortive cytoplasmic male sterility in rice. The cross combinations involving wild abortive cytoplasmic male sterile line PMS 2A and restorers IR 54 and PRR 22 constituted the basic experimental materials for the inheritance of fertility restoration studies during kharif, 1999 at the Indian Agricultural Research Institute, New Delhi. The F1 and F2 plants of these crosses were transplanted using single seedling per hill at a spacing of 20 cm between rows and 10 cm between plants within the row. Spikelet fertility of the hybrids was taken as the basis of classification of F2 plants segregating for fertility restoration. The plants were classified as completely sterile (0%), semisterile (1-40%), semifertile (40-70%) or fully fertile (> 70%) based on observation on spikelet fertility restoration [1-3]. The goodness of fit to Mendelian segregation pattern of plants segregating for fertility restoration was tested by chi-square technique.
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How to Cite
Sharma, V. K., Singh, V. P., Singh, A. K., & Zaman, F. U. (2001). Inheritance pattern of spikelet fertility restoration in hybrid Rice. INDIAN JOURNAL OF GENETICS AND PLANT BREEDING, 61(02), 160–161. https://doi.org/.
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Research Article

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