000 02173nab a22003377a 4500
001 G63074
003 MX-TxCIM
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022 _aNo (Revista en electrónico)
022 0 _a0004-9409
040 _aMX-TxCIM
082 0 4 _a95-151447
100 1 _aQuail, K.J.
245 0 0 _aEarly generation selection in wheat, 1. Yield potential
260 _c1989
340 _aPrinted Computer File
500 _a10 tables, 1 fig., 38 ref.; Append. Summary (En)
520 _aF3 single plant traits were tested as possible selection criteria for increasing yield potential. F3 plants were grown spaced in a glasshouse. All F3 traits showed significant genotypic variation which was usually greater for progeny lines than for parents although only occasionally significantly so. Broad sense heritability was generally moderate to high. F3 lines were advanced by single seed descent for replicated F7 and F8 yield experiments, two in each of 1982 and 1983. Yield levels were high (mean yield 5.9 t per ha at 10 percent moisture) and largely free of interference from lodging and disease. The progeny main effect on grain yield was highly significant, but no progeny line significantly outyielded the best parent. Best correlations with progeny grain yield were given by F3 plant height, F3 kernel weight, F3 harvest index, F3 leaf angle and F3 spike number. Retrospective selection in F3 using these traits singly at a selection intensity of 25 percent gave increases in population mean yield (0 to +12 percent) and in the proportion of high yielding lines, but only selection in F3 for reduced stature is considered worthwhile for advancing yield potential
546 _aEnglish
591 _aMIC 9177-R|CSIRO
650 1 7 _aBreeding methods
_gAGROVOC
_2
_91030
650 1 0 _aCrop husbandry
_91058
650 1 0 _aGramineae
650 1 0 _91313
_aYields
_gAGROVOC
650 1 7 _aPlant breeding
_gAGROVOC
_2
_91203
700 1 _aFischer, R.A.,
_ecoaut.
700 1 _aWood, J.T.,
_ecoaut.
773 0 _tAustralian Journal of Agricultural Research
_n95-151447, 619889
_gv. 40, no. 6, p. 1117-1133
942 _cJA
_2ddc
999 _c18333
_d18333