PJB-2021-445
INHERITANCE OF GRAIN YIELD AND IT’S CONTRIBUTING SOME MORPHOLOGICAL TRAITS IN TWELVE F₄ LINES OF BREAD WHEAT (Triticum aestivum L)
NAZEER ALI PANHWAR
Abstract
In this present study, twelve F₄ lines of bread wheat such as Blue silver x M-154, Blue silver x Z.A- 77, Blue silver x Pavon, M-154 x Blue silver, M-154 x Z.A-77, M-154 x Pavon, Z.A-77 x Blue silver, Z.A-77 x M-154, Z.A-77 x Pavon, Pavon x Blue silver, Pavon x M-154 and Pavon x Z.A-77, and four parents viz., Blue silver, M-154, Z.A-77, and Pavon were studied to estimate inheritance of some morphological traits which contribute to grain yield. The obtained results showed that the highly significant difference observed in main spike length, spikelets spike-1, grains spike-1, 100 grain weight plant-1, and grain yield plant-1 except for plant height (cm) and several fertile tillers plant¹. The transgressed segregation was observed in most progenies. Whereas, the low to high inheritance observed for plant height (1.09-55.17), tillers plant¹ (0.23-51.0), main spike length (1.65-61.93), spikelets spike-1 (6.25-60.18), grains spike-1 (0.52-53.5), seed index plant-1 (4.3-71.0) and grain yield plant-1 (1.94-57.2). The highest inheritance for plant height was observed in line; Blue silver x Pavon (55.17), number of tillers plant-1 in M154 x Pavon (51.0), main spike length in Blue silver x Z.A-77 (61.93), spikelets spike¹ in Blue silver x Z.A-77 (60.18), grains spike-1 in Blue silver x M-154 (53.5), seed index plant¹ in Blue silver x Pavon (71.0), and highest inheritance for grain yield plant-1 showed inline M-154 x Z.A-77 (57.2). This indicated that all of the lines offered favorable material for the further breeding program under ex-situ conditions.
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