Diallel cross designs and their relation to fractional replication

Der Züchter ◽  
1967 ◽  
Vol 37 (4) ◽  
pp. 174-178 ◽  
Author(s):  
Walter T. Federer
Keyword(s):  
Diallel Cross

COMBINING ABILITY FOR INHERITANCE OF ECONOMIC TRAITS IN OPIUM POPPY (Papaver somniferum L.)

2011 ◽  
Vol 24 (2) ◽  
pp. 01-08
Author(s):  
B. Kumar ◽  
N. K. Patra
Keyword(s):  
Combining Ability ◽  
Diallel Cross ◽  
Papaver Somniferum ◽  
Opium Poppy ◽  
Economic Traits ◽  
Degree Of Dominance ◽  
Parental Material ◽  
The Mean ◽  
Per Se ◽  
Important Medicinal Plant

Opium poppy (Papaver somniferum L.) is an important medicinal plant produces more than 80 alkaloids obtained from the capsules and straw of the plant. The estimate of combining ability gives an indication of the genetic behaviour of the parental material. It is therefore, desirable to select the parents for hybridization on the basis of their per se performance and combining ability effects. The F1, F2 and their reciprocals of an eight parent diallel cross in opium poppy were studied for combining ability of seven economic traits. The mean sum of squares due to GCA, SCA and reciprocals were significant for all the traits. The magnitude of GCA variances were invariably higher than those of SCA and thus indicating the preponderance of non-additive genetic variances, which was further affirmed by the measure of average degree of dominance i.e. ?(?2s/? 2g).  Among the parents VN35I for plant height, Sanchita and VG26 for capsules per plant, VN23, VN35I and Vivek for capsule index, VG26 and Sanchita for seed and straw yield per plant, and VN35I and VG20 for morphine content were found good general combiners. Earliness being a desired trait, parent VG20 having significant negative GCA estimates coupled with per se performance can be considered as good general combiner for early flowering. Inclusion of good general combiners in a multiple crossing program or an inter-mating population involving all possible crosses among them subjected to bi-parental mating may be expected to offer maximum promise in breeding for economic traits.DOI: http://dx.doi.org/10.3329/bjpbg.v24i2.17000

Relationship of Photosynthetic Carbon Assimilation Related Traits of Flag Leaves with Yield Heterosis in a Wheat Diallel Cross

2010 ◽  
Vol 36 (6) ◽  
pp. 1003-1010 ◽  
Author(s):  
Xiu-Li WANG ◽  
Zhao-Rong HU ◽  
Hui-Ru PENG ◽  
Jin-Kun DU ◽  
Qi-Xin SUN ◽  
...  
Keyword(s):  
Carbon Assimilation ◽  
Diallel Cross ◽  
Flag Leaves ◽  
Photosynthetic Carbon ◽  
Relationship Of ◽  
Photosynthetic Carbon Assimilation

Establishment and genetic analysis of complete diallel cross families of pearl oyster (Pinctada fucata)

2010 ◽  
Vol 34 (1) ◽  
pp. 26-31
Author(s):  
Long-chun GU ◽  
Jin-bi LI ◽  
Da-hui YU ◽  
Gui-ju HUANG ◽  
Jian-ye LIU
Keyword(s):  
Genetic Analysis ◽  
Diallel Cross ◽  
Pearl Oyster ◽  
Pinctada Fucata ◽  
Complete Diallel Cross

A Six-Parent Diallel Cross Analysis for Protein in Avena sterilis L.1

Crop Science ◽  
1973 ◽  
Vol 13 (1) ◽  
pp. 27 ◽  
Author(s):  
H. W. Ohm ◽  
F. L. Patterson
Keyword(s):  
Diallel Cross ◽  
Avena Sterilis

Hybrid Vigor and Combining Ability in a High‐Low Yielding, Eight‐Parent Diallel Cross of Soft Red Winter Wheat 1

Crop Science ◽  
1982 ◽  
Vol 22 (6) ◽  
pp. 1126-1129 ◽  
Author(s):  
M. J. Bitzer ◽  
F. L. Patterson ◽  
W. E. Nyquist
Keyword(s):  
Winter Wheat ◽  
Combining Ability ◽  
Diallel Cross ◽  
Hybrid Vigor ◽  
Soft Red Winter Wheat ◽  
Red Winter Wheat

Combining Ability and Yield Component Analyses in a Five‐Parent Diallel Cross in Sugarcane 1

Crop Science ◽  
1977 ◽  
Vol 17 (4) ◽  
pp. 545-547 ◽  
Author(s):  
J. D. Miller
Keyword(s):  
Combining Ability ◽  
Diallel Cross ◽  
Yield Component

scholarly journals Combining ability and heterosis on yield and its component traits in maize (Zea mays L.)

2016 ◽  
Vol 41 (3) ◽  
pp. 565-577 ◽  
Author(s):  
MZA Talukder ◽  
ANM S Karim ◽  
S Ahmed ◽  
M Amiruzzaman
Keyword(s):  
Combining Ability ◽  
Diallel Cross ◽  
Kernel Weight ◽  
Early Maturity ◽  
Ecological Zones ◽  
Component Traits ◽  
Additive Gene ◽  
Positive Heterosis ◽  
Half Diallel ◽  
Kernel Yield

Combining ability and heterosis were studied in a 7×7 half diallel cross in maize for grain yield and yield contributing characters. Significant general and specific combining ability variances were observed for all the characters studied. The significant estimates of GCA and SCA variances suggested the importance of both additive and non-additive gene actions for the expression studied traits. In these studies, variances due to SCA were higher than GCA for all charactesr, which revealed the predominance of non additive gene action (dominance and epistasis) for controlling these traits. Parents P1 and P4 were excellent general combiner for days to tasseling and silking while P1 and P5 for early maturity. P4 for short height and, P4 and P7 for higher thousand kernel weight. The parents P4 and P6 having good combining abilities for yield. Heterosis estimation was carried out using two commercial varieties NK40 and 900MG. When standard commercial check NK40 was used, the percent heterosis for kernel yield varied from -51.39 to 12.53%. Among the 21 F1s, 3crosses exhibited significant positive heterosis for kernel yield. The highest heterosis was exhibited by the cross P4×P6 (12.43%), P6×P7 (10.89%) and P2×P3 (9.87%) respectively. Compared with 900MG as check, the percent heterosis for kernel yield varied from -53.73 to 7.01%. Among the 21 F1s, none of the crosses exhibited significant positive heterosis for kernel yield. The highest heterosis were exhibited by the crosses P4×P6 (7.01%), P6 x P7 (5.55%) and P2×P3 (4.57%). The crosses showed significant positive SCA values could be used for variety development after verifying them across the agro-ecological zones of Bangladesh.Bangladesh J. Agril. Res. 41(3): 565-577, September 2016

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