Details

Autor(en) / Beteiligte

• Kalimullah

Titel

Heterosis of certain important yield components in the population wheat (Triticum aestivum L.) crosses

Ist Teil von

• Electronic journal of plant breeding, 2011-06, Vol.2 (2), p.239-243

Ort / Verlag

Indian Society of Plant Breeders

Erscheinungsjahr

2011

Link zum Volltext

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• Heterotic and heterobeltiotic performances of 10 F1s obtained from half-diallel crossings of 5 commercial varieties wereevaluated for plant height, number of tillers per plant, spike length, number of spikelets per spike, flag leaf area and number ofgrains per spike. The highest negative heterosis and heterobeltiosis were recorded in Daman-98 x Sehar (-7.74) for plant height.Daman-98 x Zam-04 showed maximum positive heterosis (44.05) whereas Daman-98 x Shafaq showed maximum positiveheterobeltiosis (34.85) for number of tillers per plant. For spike length maximum heterosis and heterobeltiosis values were 38.40and 31.26, respectively, for the hybrid Sehar x Gomal-08. Similarly for number of spikelets per spike maximum heterosis andheterobeltiosis were 45.66 and 42.59 for the cross Daman-98 x Gomal-08. Heterotic study for flag leaf area revealed thatmaximum positive heterosis for Daman-98 x Sehar (21.22), maximum positive heterobeltiosis for Daman-98 x Gomal-08(18.01). Maximum positive heterosis was recorded for Daman-98 x Gomal-08 (33.32), whereas positive heterobeltiosis werefound for Daman-98 x Gomal-08 (19.43) for grains per spike. The results revealed that the hybrid combinations Daman-98 xGomal-08 and Daman-98 x Sehar could be recommended for improved yield and enhanced biological production of wheat,respectively.