scholarly journals Combining Ability and Reciprocal Difference in Resistance to Basal Bending by Snow Pressure in Sugi (Cryptomeria japonica) Estimated from Full-diallel Crosses at Stand Age 10.

2010 ◽  
Vol 92 (3) ◽  
pp. 151-156
Author(s):  
Tomohiro Miyashita ◽  
Ryogo Nakada
Keyword(s):  
Combining Ability ◽  
Cryptomeria Japonica ◽  
Stand Age ◽  
Diallel Crosses ◽  
Reciprocal Difference ◽  
Snow Pressure

HETEROSIS IN DIALLEL CROSSES AMONG SIX VARIETIES OF HARD RED SPRING WHEAT

1969 ◽  
Vol 11 (4) ◽  
pp. 810-822 ◽  
Author(s):  
D. R. Knott ◽  
S. S. Sindagi
Keyword(s):  
Spring Wheat ◽  
Combining Ability ◽  
General Combining Ability ◽  
Specific Combining Ability ◽  
Diallel Crosses ◽  
Hard Red Spring Wheat

Diallel crosses were made among six varieties of hard red spring wheat that differed considerably in yield and other characteristics. The F1 hybrids were tested at two seeding rates and the F2, hybrids at one. Heterosis was not great in either generation and no cross appeared to be promising. General combining ability was much more important than specific combining ability and parental yields gave reasonable predictions of hybrid yields. Yields of hybrids at the two seeding rates were closely correlated.

scholarly journals The Effect of Typhoon Disturbance and Snow Pressure Stress on Clonal Structure of Cryptomeria japonica

2015 ◽  
Vol 97 (1) ◽  
pp. 19-24
Author(s):  
Takashi Nagashima ◽  
Megumi K. Kimura ◽  
Yoshihiko Tsumura ◽  
Kosuke Homma ◽  
Harue Abe ◽  
...  
Keyword(s):  
Cryptomeria Japonica ◽  
Clonal Structure ◽  
Typhoon Disturbance ◽  
Snow Pressure ◽  
Pressure Stress

Biplot analysis of diallel crosses for cold tolerance in rice at the germination stage

2011 ◽  
Vol 62 (2) ◽  
pp. 169 ◽  
Author(s):  
Peyman Sharifi ◽  
Mohammad Reza Safari Motlagh
Keyword(s):  
Cold Tolerance ◽  
Combining Ability ◽  
Graphical Representation ◽  
Principal Component ◽  
Environment Interaction ◽  
Coleoptile Length ◽  
Heterotic Groups ◽  
Diallel Crosses ◽  
Biplot Analysis ◽  
Germination Stage

This paper reports analysis of 7 × 7 diallel crosses using a genotype main effect plus genotype-by-environment interaction biplot for determining cold tolerance at the germination stage in rice. ANOVA indicated that there were highly significant differences among the replications, genotypes, general combining ability (GCA) and specific combining ability (SCA) for percentage of reduction in radicle length (RL), coleoptile length (CL) and germination percentage (GP). The hybrid Neda × Hassani had the highest mid-parent heterosis for RL, CL and GP (–58.84, –68.47 and –80.77%, respectively). This result indicated that the reduction of three traits in crosses of Neda × Hassani was lower than their parents. The graphical representation by biplot analysis allowed a rapid and effective overview of GCA and reveals that Deilamani was an ideal general combiner for all traits and this parent is a superior variety for these three traits. Three potential heterotic groups are suggested for RL reduction. Four potential heterotic groups were identified for the two other traits, in the biplot. The first two principal component (PC) axes in the biplot for reduction in GP explained 85% of the variation with first and second principal components (PC1 and PC2, respectively). An important inference that can be drawn from these results is that cross combinations involving Hassani and Deilamani as one of the parents recorded desirable SCA effects for all or most of the studied traits. The information obtained from this experiment can facilitate the identification of hybrids that combine cold resistance traits in rice.

Combining ability and heterosis in diallel crosses of maize

1977 ◽  
Vol 49 (3) ◽  
pp. 117-122 ◽  
Author(s):  
B. S. Dhillon ◽  
J. Singh
Keyword(s):  
Combining Ability ◽  
Diallel Crosses
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