البنية الوراثية لمحصول الباقلاء : 2-صفات الحاصل و مكوناته

Abstract EN

Ten genotypes of crop of beans obtained from the Organization of ICARDA dry for farming were used, introduced in reciprocal half crosses.

Parents and hybrids were planted using the design of randomized complete sectors (RCBD) with three replicates and recorded data for recipes (pods / plant number of seeds / pod rate of the weight of the seed / g seed weight / g plant , seed kg / ha , crop biological kg / ha , harvest index% and the proportion of protein %) Analysis of variance showed that the mean squares of the genotypes were significant at 1% level of prob .

The dominance genetic variation (H1and H2) was more than from the additive variance (D) for all the studied traits , while the values of two variance (additive and dominance) were took as a signal to that the genetic dominance variance (H1 and H2) was large in its value from the additive variance for all the studied traits, which can be suggested that the genetic dominance variance was more important in inheritance of all studied traits which gave alabel for using of heterosis in superior hybrids making in this study .

The values of F were pastiviely significant for weight of the seed / gm, and protein percentage% .

Gene frequency values for dominant alleles to recessive alleles (pq) were less then (o.25) for all the traits , the ratio of number of dominant genes to rescessive (KD/KR) was more than one for all the traits unless weight of the seed / gm .

The heritability ratio in narrow sence was low in the traits : The following traits were studied in the two experiments : number of the seeds / pod , and harvest index% .

Where as moderwte in the traits : number of pods / plant , weight of the seed / gm, weight of the seed / g/ plant , seed yield kg / h.

,biological yield Kg/ h , and the protein percentage% .

In the sequence of the parents as values of its means and in dominance dgree showeel that the genotype (PO6-OO2FB / FL) was the heighest parent in its mean and its more in dominance dgree for yield efficiency gm/cm2 .

to all the studied traits .

The regression line had drawn, which gives an idea of the average degree of sovereignty, if cut gradient X-axis line (vr) arrived under the original point indicates the existence of super-sovereign, and if it cut, this line axis (wr) Fidel on the existence of partial sovereignty except for prescription-crop Diversity as the regression line has passed the point of origin, which means that full sovereignty is that biological control.

Noting through results table (1), graphs of (1-9) that the regression line cutting axis (vr) down the origin of all the traits points, and this shows that the superior sovereignty is that biological control in all the qualities which reflects the superior sovereignty which reflected on the hybrid force in most of the traits showed dominant to recessive genes ratio that parents (PO6-OO2FB / FL) , (PO6-OO5FB / FL) , (PO6-OO9FB / FL) and (PO6-O14FB / FL) were most parents and frequent in the first part of which contains (75-100%) of the dominant gene.

Kew words: Genetic structure , faba bean , components traits.