Effects of EDAH, a novel plant growth regulator, on mechanical strength, stalk vascular bundles and grain yield of summer maize at high densities

Xu, Cailong; Gao, Yinyi; Tian, Bin; Ren, Jianhong; Meng, Qingfeng; Pu, Wang

doi:10.1016/j.fcr.2016.10.011

Cited by 114 publications

(69 citation statements)

References 38 publications

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“…The trinexapac-ethyl had longer persistence in inhibiting gibberellin biosynthesis to decrease dry matter production and internode length (Zagonel et al, 2002), and the Chlormequat reduced the amount of active gibberellin (Bode & Wild, 1984). In the present study, the data clearly demonstrated that the crop height was significantly reduced, which was consistent with previous studies (Cailong et al, 2017). Palisade was more effective at reducing height than Manipulator, a finding that was in line with Espindula et al (2009), and the combination of the two PGRs reduced the height substantially.…”

Section: Journal Of Agricultural Sciencesupporting

confidence: 82%

“…Piñera-Chavez et al (2016) found a positive correlation between stem strength and diameter and wall width. Spraying PGRs at the right growth stage can improve stem quality, prevent lodging, and increase crop yields (Cailong et al, 2017). The typical changes caused by the application of trinexapac-ethyl are a reduction in plant height, an increase in wheat stem diameter and strength, and a darker green color in leaves (Tolbert, 1960;Zagonel & Fernandes, 2007).…”

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confidence: 99%

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Effect of Selected Plant Growth Regulators on Yield and Stem Height of Spring Wheat in Ontario

Zhang¹,

Su²,

Tabori³

et al. 2017

JAS

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Lodging is an important limiting factor in wheat because it affects growth, yield and grain quality. Plant growth regulators (PGRs) are often used to restrain elongation of internodes, improve lodging traits, and protect yield potentials. An experiment was set up in the greenhouse at the Ottawa Research and Development Centre (ORDC) to study the effect of the selected PGRs (Manipulator, the active ingredient of which is chlormequat; and Palisade, the active ingredient of which is trinexapac-ethyl) on yield, stem height and morphological traits in six spring wheat cultivars (AC Carberry, AAC Scotia, Hoffman, Fuzion, FL62R1, and AW725). Both PGRs reduced plant height and caused a 6% to 48% reduction in the length of the second basal internode. The mixture of the two PGRs had a synergistic affect and made the stem shorter. The application of PGRs significantly reduced lodging, increased stem diameter, thickness, filling degree, and stem strength, and increased leaf relative chlorophyll content. However, application of PGRs significantly reduced grain yield, and the combination of the two PGRs (Manipulator and Palisade) had a synergistic effect and lowered the yield. In general, the effect of Palisade was more evident than that of Manipulator.

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Section: Journal Of Agricultural Sciencesupporting

confidence: 82%

mentioning

confidence: 99%

Effect of Selected Plant Growth Regulators on Yield and Stem Height of Spring Wheat in Ontario

Zhang¹,

Su²,

Tabori³

et al. 2017

JAS

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“…Internode length and sheer strength of the stem are important factors contributing to plant resistance to lodging [3]. In grass species, including maize, internode length expansion is triggered by cell division and elongation of the intercalary meristems at the base of the growing internodes [31].…”

Section: Identification Of the Differentially Expressed Genesmentioning

confidence: 99%

“…Several studies have noted that application of ethephon can thicken and shorten the internodes, subsequently reducing stalk lodging and enhancing maize yield [10,11]. These studies have largely centred on the physiological and biochemical mechanisms of how ethephon regulates the internode characterization [3,7,12]. However, the molecular mechanism underlying the ethephon controlled internode shortening is still largely unknown.…”

Section: Introductionmentioning

confidence: 99%

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Effects of ethephon on DNA methylation and gene expressions associated with shortened internodes in maize

Yao

Huo

Zenda

et al. 2017

Biotechnology & Biotechnological Equipment

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In this study, the molecular mechanism underlying ethephon-induced shortened internodes in maize was investigated using Zhengdan958 maize variety. The ethephon treatment was performed by spraying 225 mL/ha Ethephon 40% SL onto the foliage at the eight-expanded-leaves stage. The differentially expressed genes in the young internodes under ethephon treatment were identified through methylation-sensitive amplified fragment length polymorphism (MSAP), start codon targeted polymorphism (SCoT) and cDNA-amplified fragment length polymorphism (AFLP) analyses. MSAP results showed the methylation sites were widely distributed in both the ethephon-treated (at 27.8%) and control plants (30.1%). This suggested that ethephon treatment modified the methylation patterns; with 3.0% of the sites being hyper-methylated and 7.3% demethylated compared with the control. Based on SCoT analysis, 148 transcript derived fragments (TDFs) were obtained in the ethephon-treated plants. Among them, 38 were upregulated (25.7%) and 47 down-regulated (31.8%). cDNA-AFLP analysis using 70 primer pairs identified 1635 TDFs in the ethephon-treated and the control plants. Of these, 600 and 564 TDFs were up-and down-regulated by the ethephon treatment, respectively. BLASTX analysis on 50 (randomly selected) differentially expressed TDFs divided them into several categories based on their putative biological functions: signal transduction (6%), resistance-related (14%), energy and metabolism (22%), transcription (4%), cell apoptosis (2%), unknown functional proteins (42%) and unknown genes (10%). Our results revealed that ethephon treatment could induce DNA methylation variation principally by increasing the demethylation tendency. This is suggested to play roles in stress-defence genes expression regulation and the differentially expressed genes could be associated with shortened internodes in maize.

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New Aspects of Plant Regulators

Haas

2019

Modern Crop Protection Compounds

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Effects of EDAH, a novel plant growth regulator, on mechanical strength, stalk vascular bundles and grain yield of summer maize at high densities

Cited by 114 publications

References 38 publications

Effect of Selected Plant Growth Regulators on Yield and Stem Height of Spring Wheat in Ontario

Effect of Selected Plant Growth Regulators on Yield and Stem Height of Spring Wheat in Ontario

Effects of ethephon on DNA methylation and gene expressions associated with shortened internodes in maize

New Aspects of Plant Regulators

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