Abstract
The genic behaviour of semidwarf clum length was studied among a number of divergent F1 and F2 diallel crosses, involving tall d1, d2, d3 or d4 (single, double, triple, quadruple semidwarfs respectively) height group parents of common spring bread wheat. The conclusions were drawn from means, variances, dominance values, number of effective factors, and F2 frequency curves. The alleles for tallness were partially dominant over alleles of short culm length in tall × d3 or d4 crosses. However, tallness was nearly or completely dominant over d1 or d2 and so was d1 over d2. Whereas, d1 or d2 were partially dominant over d3. Operation of one gene in d1 and d2 height groups and two genes in d3 and d4 height groups, with unequal effects in ‘Norrn 10’ derivatives and with equal effects in Olesen’s derivatives, was indicated along with some minor modifiers. Use of single, double, triple or quadruple semidwarf terms for classifying different height categories has been suggested in modification of one-gene, two-gene, and three-gene semi-dwarfs.
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Claims 9
Claim · model-written summary
Alleles for tallness were partially dominant over alleles of short culm length in tall x d3 or d4 crosses.
Verbatim
t0“Genetics of Semidwarfism in Common Bread Wheat”
e2“The alleles for tallness were partially dominant over alleles of short culm length in tall × d3 or d4 crosses”
Claim · model-written summary
Tallness was nearly or completely dominant over d1 or d2 semidwarfs.
Verbatim
t0“Genetics of Semidwarfism in Common Bread Wheat”
e1“However, tallness was nearly or completely dominant over d1 or d2 and so was d1 over d2”
Claim · model-written summary
d1 was dominant over d2 semidwarfs.
Verbatim
t0“Genetics of Semidwarfism in Common Bread Wheat”
e1“However, tallness was nearly or completely dominant over d1 or d2 and so was d1 over d2”
Claim · model-written summary
d1 or d2 semidwarfs were partially dominant over d3.
Verbatim
t0“Genetics of Semidwarfism in Common Bread Wheat”
e2“Whereas, d1 or d2 were partially dominant over d3”
Claim · model-written summary
One gene operates in the d1 and d2 height groups.
Verbatim
t0“Genetics of Semidwarfism in Common Bread Wheat”
e3“Operation of one gene in d1 and d2 height groups and two genes in d3 and d4 height groups, with unequal effects in ‘Norrn 10’ derivatives and with equal effects in Olesen’s derivatives, was indicated along with some minor modifiers”
Claim · model-written summary
Two genes operate in the d3 and d4 height groups.
Verbatim
t0“Genetics of Semidwarfism in Common Bread Wheat”
e3“Operation of one gene in d1 and d2 height groups and two genes in d3 and d4 height groups, with unequal effects in ‘Norrn 10’ derivatives and with equal effects in Olesen’s derivatives, was indicated along with some minor modifiers”
Claim · model-written summary
Gene effects were unequal in ‘Norrn 10’ derivatives.
Verbatim
t0“Genetics of Semidwarfism in Common Bread Wheat”
e3“Operation of one gene in d1 and d2 height groups and two genes in d3 and d4 height groups, with unequal effects in ‘Norrn 10’ derivatives and with equal effects in Olesen’s derivatives, was indicated along with some minor modifiers”
Claim · model-written summary
Gene effects were equal in Olesen’s derivatives.
Verbatim
t0“Genetics of Semidwarfism in Common Bread Wheat”
e3“Operation of one gene in d1 and d2 height groups and two genes in d3 and d4 height groups, with unequal effects in ‘Norrn 10’ derivatives and with equal effects in Olesen’s derivatives, was indicated along with some minor modifiers”
Claim · model-written summary
Single, double, triple or quadruple semidwarf terms should classify height categories, in place of one-gene, two-gene and three-gene semidwarf terms.
Verbatim
t0“Genetics of Semidwarfism in Common Bread Wheat”
e4“Use of single, double, triple or quadruple semidwarf terms for classifying different height categories has been suggested in modification of one-gene, two-gene, and three-gene semi-dwarfs”