Heterosis for Grain Yield and Component Traits in Quality Protein Maize

Heterosis for Grain Yield and Other Agronomic Traits in Foxtail Millet

varietal crosses or selfed selections from planned crosses have not been widely used is that foxtail millet is one Foxtail millet [Setaria italica (L.) P. Beauv.] is a largely selfof the most difficult species to cross-pollinate (Baltenpollinating species that is used as a warm-season annual in the USA. Nearly all cultivars of this species grown in the USA are selections sperger, 1996). The flo...

Estimation of heterosis for grain yield components in Maize (Zea mays L.)

Heterosis plays an important role in achieving improvement in crop production. About 69 F 1 hybrids obtained by crossing twenty three lines and three testers in a line × tester fashion were used to derive the information on degree of heterosis over mid, better and standard parent in maize. Sixty nine crosses and their parents including one check CoH(M)5 were evaluated in a Randomized Block Desi...

Combining Ability and Heterosis for Yield and Component Characters in Maize

Heterosis and the nature and combining ability was studied in 7 × 7 diallel cross in maize for grain yield and yield contributing characters. The significant estimates of GCA and SCA variances suggested the importance of both additive and non-additive gene actions for the expression studied traits. Preponnderance of additive gene action was noticed for ear diameter and 1000-kernel weight and th...

Grain Yield and Heterosis of Maize Hybrids under Nematode Infested and Nematicide Treated Conditions.

Plant-parasitic nematodes are present on maize but resistant genotypes have not been identified in Uganda. This study was aimed at determining the level of nematode resistance among F(1) hybrids, and to estimate grain yield, heterosis and yield losses associated with maize hybrids under nematode infestation. The 30 F(1) hybrids and two local checks were evaluated in a split plot design with nem...

Genetic Enhancement of Grain Quality-Related Traits in Maize