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022 _a2673-7655 (Online)
024 8 _ahttps://doi.org/10.3390/crops5020010
040 _aMX-TxCIM
041 _aeng
100 1 _aSaavedra-Avila, J.I.
_938567
245 1 0 _aEffect of ALS and 4-HPPD inhibitor herbicides on maize lines
260 _aBasel (Switzerland) :
_bMDPI,
_c2025.
500 _aPeer review
500 _aOpen Access
520 _aNicosulfuron and topramezone are herbicides with different mechanisms of action, and are recommended for weed control in maize (Zea mays L.). The objective of this study was to evaluate and compare the effect of both herbicides, at increasing doses of 0, 1× and 3×, equivalent to 0, 60, and 180 g ai ha−1 for nicosulfuron, and 0, 33.6, and 100.8 g ai ha−1 for topramezone, on physiological and agronomic characteristics in 29 maize lines, including S2, S3 and S4, using an alpha-lattice incomplete block design. The cluster analysis divided our genotypes into two groups for both herbicides, based on their higher or lower fresh weight. The results showed a reduction in the SPAD index for both herbicides at 7 days after application, and nicosulfuron caused a reduction in the green matter weight of 33.4%. Similarly, nicosulfuron caused a delay and a reduction in its doses, after an initial increase, for all the agronomic variables, female flowering (FF), male flowering (MF), plant height (PH), ear height (EH), and grain weight (GW), in doses of 60 and 180 g ai ha−1, while topramezone only affected PH (1×–3×) and EH (3×). When comparing the applications of both herbicides on the maize genotypes, a difference in female and male flowering of 5.09 and 4.86 days, respectively was observed. A differential response and greater damage to nicosulfuron were observed in maize genotypes, with respect to topramezone applications.
546 _aText in English
650 7 _aZea mays
_2AGROVOC
_91314
650 7 _aNicosulfuron
_2AGROVOC
_938568
650 7 _aPhytotoxicity
_2AGROVOC
_929420
650 7 _aField Experimentation
_2AGROVOC
_98629
700 1 _aGarcía Zavala, J.J.
_95363
700 1 _aSantacruz-Varela, A.
_9682
700 1 _aCastillo-González, F.
_921790
700 1 _aCrossa, J.
_gGenetic Resources Program
_8CCJL01
_959
773 0 _tCrops
_gv. 5, no. 2, art. 10
_dBasel (Switzerland) : MDPI, 2025.
_x2673-7655
856 4 _yOpen Access through DSpace
_uhttps://hdl.handle.net/10883/35564
942 _cJA
_n0
_2ddc
999 _c68707
_d68699