000 02884nab|a22003737a|4500
999 _c61253
_d61245
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003 MX-TxCIM
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008 200125s2020||||ne |||p|op||||00||0|eng|d
022 _a0378-4290
024 8 _ahttps://doi.org/10.1016/j.fcr.2020.107721
040 _aMX-TxCIM
041 _aeng
100 0 _aShan Duan
_911201
245 1 0 _aGAR dwarf gene Rht14 reduced plant height and affected agronomic traits in durum wheat (Triticum durum)
260 _aAmsterdam (Netherlands) :
_bElsevier,
_c2020.
500 _aPeer review
520 _aThe GA-insensitive dwarf genes, Rht-B1b (Rht1) and Rht-D1b (Rht2), have been used worldwide for reducing plant height, improving lodging resistance and grain yield since the Green Revolution. To explore new dwarf genes for wheat improvement, in this study, the effects of GA-responsive (GAR) dwarf gene, Rht14, on plant height related traits, agronomic traits, yield traits and quality traits were evaluated in durum wheat by F2:3 lines, F3:4 lines and F4:5 lines that derived from reciprocal crosses between the Rht14 donor Castelporziano (CP) and Langdon (L). These results indicated that Rht14 could reduce plant height by an average of 26.68 % and 27.68 % in the lines of CP × L and L × CP populations, respectively. Furthermore, both the length of peduncle and each internode were all significantly reduced, with the basal one as the most proportion and the peduncle as the largest difference. The flag leaf length, width and area increased significantly in dwarf lines. Rht14 did not affect most of the yield components, including number of tillers plant?1, number of fertile tillers plant?1, spikelet number spike?1, grain number spike?1, biomass plant?1, grain yield plant?1, while significantly decreased 1000-kernel weight. Rht14 didn't affect the length of coleoptile and seedling root traits when compared with tall lines, indicating it may have the potential for good seedling establishment in the field. A negative effect of Rht14 on some quality traits was observed. The results indicate that GAR dwarf gene Rht14 represents a new alternative locus in breeding programs for improving population yield potential and lodging resistance in wheat.
546 _aText in English
650 7 _2AGROVOC
_91142
_aHard wheat
650 7 _2AGROVOC
_93563
_aGenes
650 7 _2AGROVOC
_911189
_aHeight
650 7 _2AGROVOC
_91138
_aGrain
650 7 _aQuality
_gAGROVOC
_2
_91231
700 0 _aZhangchen Zhao
_911202
700 0 _aYue Qiao
_911203
700 1 _aChunge Cui
_911204
700 1 _9833
_aMorgounov, A.I.
_gFormerly Global Wheat Program
_8INT1787
700 1 _aCondon, A.G.
_94290
700 0 _aLiang Chen
_99932
700 _aYin-Gang Hu
_910228
773 0 _tField Crops Research
_gv. 248, art. 107721
_dAmsterdam (Netherlands) : Elsevier, 2020.
_x0378-4290
_wu444314
942 _cJA
_n0
_2ddc