Transpiration and leaf growth of gladiolus in response to soil water deﬁcit

Becker, Camila Coelho; Streck, Nereu Augusto; Gubiani, Paulo Ivonir; Uhlmann, Lilian Osmari; Langner, Josana Andréia; Tomiozzo, Regina; Balest, Darlan Scapini; Petry, Mirta Teresinha

doi:10.1016/j.scienta.2021.110031

Cited by 8 publications

(6 citation statements)

References 20 publications

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“…To evaluate the plant response to water deficit, the concept of the FTSW was used, as in Sinclair and Ludlow (1986), and more recently in Riar et al (2018) and Becker et al (2021). To determine the FTSW, two stages of water deficit are considered (Sinclair & Ludlow, 1986).…”

Section: Methodsmentioning

confidence: 99%

“…The transpiration variable was normalized twice, as done in previous studies (Becker et al, 2021; Riar et al, 2018; Souza et al, 2014). The first normalization was calculated as the ratio between the individual values of transpiration at T2 divided by the average value of the variables at T1 on each day.…”

Section: Methodsmentioning

confidence: 99%

“…These mechanisms are controlled by hormone signaling pathways and stress‐responsive transcription factors (TFs), which are the basic mediators to tolerate or avoid the negative effects of water deficit (Martignago et al, 2020). Upon water deficit conditions, there is induction of hormone synthesis, such as abscisic acids and ethylene acting as chemical messengers to activate various physiological processes, including stomatal closure, stimulation of root growth, leaf senescence, and accumulation of osmolites to prevent drought stress (Becker et al, 2021; Morgan & Drew, 1997; Ullah et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…A widely accepted method to evaluate the response of plants to soil water deficit is the fraction of transpirable soil water (FTSW) approach (Ritchie, 1981;Sinclair, 2020). This method measures the amount of water extracted by plant transpiration with high accuracy (Beseli et al, 2020;Gunasekaran et al, 2019;Riar et al, 2018). The objective of this study was to determine the level of drought tolerance of soybean genotypes with the HaHB4 ® TF and commercial cultivars subjected to water deficit during the vegetative phase using the FTSW approach.…”

Section: Introductionmentioning

confidence: 99%

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Growth and transpiration of soybean genotypes with HaHB4® transcription factor for drought tolerance

Winck

Sarmento

Zanon

et al. 2021

Physiologia Plantarum

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The expression of HaHB4 ® transcription factor reduces soybean sensitivity to abiotic stresses, such as water deficit. Studies that quantify the tolerance of HaHB4 ® soybean to the soil water content in comparison with cultivars currently sown in Brazil are lacking.The objective of this study was to determine the level of drought tolerance of soybean genotypes expressing the HaHB4 ® transcription factor (TS18-6-610108 and TS18-6-610084) and commercial cultivars (TMG 7063 IPRO and BS IRGA 1642 IPRO) subjected to water deficit during the vegetative phase. We used the fraction of transpirable soil water (FTSW) approach. Parameters related to leaf transpiration, dry matter accumulation, water use efficiency (WUE), and transpiration coefficient (TC) were evaluated in the four soybean genotypes and two treatments (T1-100% replacement of transpired water and T2-without replacement of transpired water). The FTSW threshold for the decline in transpiration was evaluated to identify the onset of water stress in soybean. TS18-6-610108 and BS IRGA 1642 IPRO maintains potential transpiration at low FTSW values. The TS18-6-610108 genotype has 14% higher WUE than the sensitive cultivar under water deficit. Under well-irrigated conditions, the HaHB4 ® genotypes showed the highest TC values, which indicate well-functioning physiological processes.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Growth and transpiration of soybean genotypes with HaHB4® transcription factor for drought tolerance

Winck

Sarmento

Zanon

et al. 2021

Physiologia Plantarum

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“…Irrigation is not a common practice used by gladiolus producers in the subtropical conditions of Brazil, although its positive effects on leaf area duration and flower quality have been demonstrated (Becker et al, 2021). This occurs because most producers are small farmers, who currently use conventional soil preparation, which includes ploughing and turning over the soil (Bosco et al, 2021) using a rotary cultivator.…”

Section: Introductionmentioning

confidence: 99%

Irrigation and soil mulching can improve the quality of flower stems of gladiolus

Lima

Streck

Petry

et al. 2022

Irrigation and Drainage

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Gladiolus is one of the most important bulbous flowers produced worldwide. The objective of this study was to evaluate the combined effect of irrigation and soil mulching on soil water conservation and its effect on gladiolus floral stem quality. Two field experiments were conducted with gladiolus at the Federal University of Santa Maria, state of Rio Grande do Sul, Brazil, during 2019 and 2020. The experimental design was a completely randomized three‐factor design, with two cultivars (Red Beauty and T704 in experiment 1 ‐ E1 and Red Beauty and Jester in experiment 2 ‐ E2), two cultivation systems (soil mulched with straw and bare soil) and two water regimes (irrigated and non‐irrigated) as treatments. When gladiolus plants reached the R2 stage (harvest point), total stem length, spike length, stem diameter and final number of florets were evaluated. Variables were subjected to analysis of variance and Tukey's test at 5% of error probability. Irrigation improved the quality of floral stems, with greater stem and spike length, greater diameter and number of florets per spike, thus resulting in stems with greater decorative value. The soil covered with straw did not influence the quality parameters of the floral stem of the gladiolus, the only observed difference between cultivars being the variable length of the spike.

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Growth and transpiration of soybean genotypes with AtAREB1 transcription factor for tolerance to water deficit

Winck,

Sarmento,

Foloni

et al. 2023

Plant Growth Regul

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Transpiration and leaf growth of gladiolus in response to soil water deﬁcit

Cited by 8 publications

References 20 publications

Growth and transpiration of soybean genotypes with HaHB4® transcription factor for drought tolerance

Growth and transpiration of soybean genotypes with HaHB4® transcription factor for drought tolerance

Irrigation and soil mulching can improve the quality of flower stems of gladiolus

Growth and transpiration of soybean genotypes with AtAREB1 transcription factor for tolerance to water deficit

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