Application Of Plant Growth Regulators Research Articles

Foliar Application of Plant Growth Regulators Enhances Drought Tolerance by Modulating Growth and Biochemical Responses in Sugarcane Varieties

ABSTRACTPlant growth regulators (PGRs) improve crop growth and mitigate the adverse effects of drought stress. This study explores the effects of various PGRs including melatonin (MT), indole‐butyric acid (IBA) and gibberellic acid (GA3) on drought‐tolerant Zhongzhe 9 (ZZ9) and Xintaitang 22 (ROC22), as well as drought‐sensitive varieties Guitang‐44 (GT44) and Funong 41 (FN41) varieties. A pot experiment was conducted to evaluate the foliar application of these hormones alone or in combination on sugarcane seedlings under drought stress conditions. At the sixth leaf stage, drought stress was induced by reducing soil moisture to 40%–45% field capacity. Results showed that the drought‐sensitive variety GT44 had the highest plant height (17.97 cm), while PGRs application enhanced the relative water content (RWC) in FN41 by 0.96%. PGRs treatment also increased plant height by 33.98% and RWC by 3.26% compared to controls. MT application significantly increased chlorophyll a and b contents in FN41 by 4.82% and 4.51%, respectively. Antioxidant enzyme activities superoxide dismutase and peroxidase increased by 16.39% and 12.57%, respectively, indicating enhanced oxidative stress defence. Moreover, PGRs applications reduced hydrogen peroxide and malondialdehyde (MDA) accumulation, signifying decreased oxidative damages. The combinations of MT + GA3 and MT + IBA + GA3 significantly improved the plant growth attributes, antioxidant enzymes, osmolytes and reduced the accumulation of ROS and MDA content in both tolerant and sensitive varieties under drought stress. Thus, combined application of MT + GA3 and MT + IBA + GA3 treatments effectively mitigated drought stress in sugarcane seedlings, providing valuable insights for sustainable agricultural practices.

Interactive plant growth regulator and fertilizer application dataset on growth and yield attributes of tomato (Solanum lycopersicum L.)

Interactive plant growth regulator and fertilizer application dataset on growth and yield attributes of tomato (Solanum lycopersicum L.)

Effect of Integrating Plant Growth Regulators and Micronutrients on Growth, Phenology and Seed Yield of Fenugreek (Trigonella foenum-graecum L.)

An experiment was conducted during Rabi 2019-20 at College of Agriculture, Indore (Madhya Pradesh) to investigate the effects of Plant Growth Regulator (PGRs) and Micro-nutrient Application on Growth, Quality, and Seed yield of Fenugreek (Trigonella foenum-graecum L.). The nine treatments consisted of different levels of PGRs i.e. GA3 and NAA with micro-nutrient (Mixol) which contain zinc, iron, manganese copper, boron and molybdenum including control (No use of PGRs and micro-nutrients) viz. T1 = 50 ppm GA3 seed treatment + Mixol 1.0%, T2 = 100 ppm GA3 seed treatment + Mixol 1.0%, T3 = 50 ppm GA3 foliar spray + Mixol 1.0%, T4 = 100 ppm GA3 foliar spray + Mixol 1.0%, T5 = 25 ppm NAA seed treatment + Mixol 1.0%, T6 = 50 ppm NAA seed treatment + Mixol 1.0%, T7=25 ppm foliar spray + Mixol 1.0%, T8 = 50 ppm NAA foliar spray + Mixol 1.0% and T9 = Control. Data were collected on different growth characters (Plant height and number of branches), Phonological attributes (Days to first flowering, days taken to 50% flowering and days to taken seed maturity) and yield characters (Seed yield per plant (g), seed yield t/ha, number of pods per plant, length of pod (cm), number of seeds per pod) of fenugreek. Based on results of one year experimentation, foliar spray of GA3 at 100 ppm + mixol 1.0% was found the best treatment compared with respect to plant growth and seed yield of fenugreek.

Exogenous Hormone Treatments in Maize.

Plant hormones have key functions in plant morphology, physiology, and stress responses. Studies on the biology of hormones and their effect on plant physiology and metabolism are greatly facilitated by the exogenous application of these compounds. In general, methods for exogenous hormone application are easy and fast, and provide useful information about their effects in planta. Although hormone effects have been studied in several plant species, the used methods need to be tailored specifically to each species to get robust data. Maize is an established model for basic and applied research, and an excellent system for studying the effects of hormones on developmental and stress responses in a cereal crop. Different methods have been reported for the exogenous application of plant growth regulators in maize, including watering, spraying, immersion, and application to the apical whorl. These various methods are useful to analyze hormone responses at different developmental stages, in specific organs, and within tissues. As with all exogenous application assays, suitable experimental design and the inclusion of proper controls are critical factors in these methods, to obtain reliable and reproducible results. Here, we provide an overview of various methods for hormone exogenous application in maize, and technical considerations to get successful results.

Plant growth regulators improve the yield of white lupin (Lupinus albus) by enhancing the plant morpho-physiological functions and photosynthesis under salt stress

BackgroundWhite lupin (Lupinus albus L.) is a multi-purpose, climate resilient, pulse crop with exceptionally high protein content that makes it a suitable alternative of soybean in livestock feed. Although white lupin grows well on marginal sandy soils, previous studies have reported its sensitivity towards salinity stress. This experiment aims to assess the influence of salinity stress and mitigating role of plant growth regulators (PGRs) on performance of white lupin.MethodologyThe white lupin plants were sown in pots maintained at three salinity levels (1, 3 and 4.5 dS m− 1) throughout the growing season and foliar sprayed with different PGRs, including ascorbic acid, potassium chloride, boric acid, ammonium molybdate and methionine at sowing, four weeks after emergence and at the initiation of flowering. Foliar spray of distilled water and salinity level of 1 dS m− 1 were maintained as control treatments. Data were recorded for seed germination indices, plant growth, antioxidant enzymes and photosynthetic efficiency variables.ResultsThe severe salinity stress (4.5 dS m− 1) reduced the germination indices by 9–50%, plant growth traits by 26–54%, root nodulation by 12–26%, grain development by 44–53%, antioxidant enzymes activity by 13–153% and photosynthetic attributes by 1–8% compared to control (1 dS m− 1). Different PGRs improved several morpho-physiological attributes in a varied manner. The application of potassium chloride improved seed vigour index by 53%, while ascorbic acid improved root nodulation by 12% and number of pods per cluster by 75% at the severe salinity level. The foliar application of PGRs also displayed a recovery of 140% in the activity of superoxide dismutase and 70% in catalase. The application of multi zinc displayed an improvement of 37% in plant relative chlorophyll, while ascorbic acid brought an increase of 25% in non-photochemical quenching and 21% in photochemical quenching coefficient at the severe salinity level. On contrary, the application of PGRs brought a relatively modest improvement (8–13%) in quantum yield of photosystem II at slight to moderate (3 dS m− 1) salinity stress. The correlation analysis confirmed a partial contribution of leaf area and seed vigour index to overall photosynthetic efficiency of white lupin.ConclusionsClearly, salinity exerted a negative impact on white lupin through a decline in chlorophyll content, activity of antioxidant enzymes and efficiency of photosynthetic apparatus. However, PGRs, especially ascorbic acid and potassium chloride considerably improved white lupin growth and development by mitigating the negative effects of salinity stress.

Unveiling the potential role of gibberellic acid, melatonin and indole acetic acid on parthenocarpy, physiological traits and phytochemical responses in Hibiscus sabdariffa L

The economic part of the Hibiscus sabdariffa L. (Malvaceae) plant is the sepal. One of the main challenges in harvesting this product is separating its seeds, which are surrounded by sepals. If the parthenocarpy process occurs without seeds, the labor costs are reduced and the profits from the production of this plant are increased. In current study, the effect of gibberellic acid (GA3), melatonin (M), and indole acetic acid (IAA) on the induction of parthenocarpy in H. sabdariffa plants was investigated. The study was conducted as a factorial experiment in the form of randomized complete block design with three replications. Different concentrations of GA3 (0 (control), 700, 800, and 900 ppm), M (0 (control), 100, 200, and 400 ppm), and IAA (0 (control), 1000, 1200, and 1400 ppm) were foliar sprayed after the emergence of the flower bud on the 50th, 60th, and 70th days of planting, and the control plants were also sprayed with distilled water. Various measurements were taken including the number of seeds per boll, parthenocarpy percentage, capsule volume, number of bolls per plant, number of mature seeds, and phytochemical parameters such as anthocyanin, chlorophyll and carotenoid content, antioxidant value, total phenol and flavonoid content, and soluble solids. The application of GA3 at 800 and 900 ppm along with IAA at 1000 ppm and M at 100 and 200 ppm led to the production of parthenocarpy fruits and showed the best results in the induction of parthenocarpy. The control group indicated the highest number of mature seeds per boll. The highest amount of phenol and flavonoid contents were obtained in plants treated with GA3 at 800 ppm. For anthocyanin, the control group showed the highest value (1.63 mg g−1), and in the case of the antioxidant trait, plants exposed to 100 ppm M showed the highest IC50 (40.68%). Hence, the application of plant growth regulators with appropriate concentrations can be effective in inducing parthenocarpy in H. sabdariffa plants. Additionally, parthenocarpy-induced by GA3, IAA, and M had different impacts on fruit quality and quantity, suggesting that the effect depends on the type of employed hormones used and their concentrations.

Effect of Plant Growth Regulators on Growth and Yield of Tomato (Solanum lycopersicum L.) Cv. MAHY 701 under Agroclimatic Conditions of Bhubaneswar

Exogenous application of plant growth regulators play a vital role on effectively enhancing plant growth along with crop output. In order to determine the effect of plant growth regulators and the ideal concentration of GA₃ and NAA for improved tomato growth and yield (Solanum lycopersicum L.) cv. MAHY-701 under Bhubaneswar condition, a field experiment was conducted in Rabi 2022 at Agricultural Research Station, Binjhagiri, Institute of Agricultural Sciences, Siksha "O" Anusandhan (Deemed to be) University, Bhubaneswar, Odisha using plant growth regulators, namely GA₃ and NAA. The experimental design was randomized block design, which consisted of three replications and seven treatments. When compared to the control treatment, all growth, yield, and quality parameters were shown to be significantly better at various concentrations of GA₃ (30, 60, and 90 ppm) and NAA (25, 50, and 75 ppm). The findings of the investigation reinforce the claim that, as compared to the control, tomato growth and yield were considerably affected by both GA₃ and NAA. The results categorically demonstrated that the treatment where the plant was sprayed with GA₃ @ 90 ppm had the highest total soluble solids (4.33°Brix), acidity (0.42%), and shelf life (18.73), as well as the highest number of fruits per plant (42.90), fruit length (6.40cm), fruit diameter (6.80cm), weight of fruit (118.80g), yield per plot (31.70kg), yield per ha. (423.50qt), and other quality attributes. In conclusion, farmers may be suggested to apply GA₃ at 90 ppm and NAA at 50 ppm when raising tomatoes in Bhubaneswar Agroclimatic environments for MAHY-701.

Influence of plant growth regulators on yield attributes and physical parameters of fruit quality in sapota under the eastern tropical region of India

The present study was conducted at Central Horticultural Experiment Station (ICAR-IIHR), Bhubaneswar, during 2022 and 2023 to evaluate the impact of the application of plant growth regulators on fruit set, yield and physical fruit quality of Sapota (Manilkara zapota L.) cv. DHS-1. The experiment was designed in a randomized completely block design with nine treatments consisting of NAA (50 and 100 ppm), CPPU (5 and 7.5 ppm), SA (150 and 300 ppm) and Homobrassinolide (10 and 15 ppm) and water as control. Treatments were imposed on 24-year-old, uniformly grown sapota trees, planted at 10m x 10m spacing, at flowering, fruit set and one month after fruit set. In general, the application of PGRs was effective in augmenting fruit sets, fruit retention, yield attributes and physical fruit quality over control. However, the application of NAA and CPPU performed better at higher doses. The treatment NAA @100 ppm resulted in the highest fruit set (34.76 %), fruit retention (57.46% at 30 DAFS, 28.48 % at 120 DAFS), yield (47.77 kg/tree) and physical fruit viz. pulp content (93.80%), dry matter (26.15%), fruit length (7.47 cm) and fruit width (6.57 cm). Pearson correlation coefficient analysis showed positive links among fruiting, yield, yield attributing traits and physical fruit quality parameters of sapota, as well as a negative correlation for peel content.

Spring nitrogen and plant growth regulator effects on seed yield of orchardgrass

AbstractOrchardgrass (Dactylis glomerata L.) is an important forage seed crop, but unlike other cool‐season grasses, seed yields have not increased over time. Seed yield increases in orchardgrass may be possible with plant growth regulators (PGRs) such as trinexapac‐ethyl (TE) and chlormequat chloride (CCC). Field trials were conducted at Hyslop Experimental Farm near Corvallis, Oregon, over three crop years (2017–2019) to examine the effects of spring nitrogen (N) and PGRs on seed production characteristics in orchardgrass. Spring N treatments included 0, 112, 157, and 202 kg N ha−1 and PGR applications were timed using the BBCH (Biologische Bundesanstalt, Bundessortenamt und Chemische Industrie) scale. Four PGR treatments included an untreated control, 210 g TE ha−1 at BBCH 32, 210 g TE ha−1 at BBCH 51, and 105 g TE ha−1 + 1500 g CCC ha−1 at BBCH 32. An interaction of spring N and PGR increased seed yields in 2 years, while spring N and PGR increased seed yield independently in the other year. The combination of TE and CCC PGRs did not increase seed yield over TE alone. Seed yield increases from spring N were due to an increase in seed number m−2, while increases in seed yield attributable to PGRs were the result of increased seed number m−2 and harvest index. This study suggests that the combination of 112 kg ha−1 spring N and 210 g ha−1 TE PGR is the best practice to maximize seed yield in orchardgrass.

Enhancing carotenoid accumulation in Dunaliella bardawil by combined treatments with fulvic acid and optimized culture conditions

Natural carotenoids from microalgae have received more attention as an alternative source. In this study, fulvic acid (FA), a plant growth regulator, was used to enhance carotenoid accumulation in microalgae Dunaliella bardawil rich in lutein. However, the addition of FA promoted pigment synthesis but also exhibited an inhibitory effect on biomass. Therefore, the optimization of culture conditions was performed to further enhance carotenoid accumulation, including high light stress (10,000 lx) and the two-stage cultivation comprising 1-aminocyclopropane-1-carboxylic acid (ACC) and FA. Under both culture conditions, the growth inhibition caused by FA was alleviated, leading to a further increase in the contents of chlorophylls and carotenoids. HPLC analysis revealed that the production of lutein, α-carotene and β-carotene increased by 0.44-, 0.37- and 0.54-fold under the treatment of 400 mg/L FA with high light intensity and 0.91-, 1.15- 0.29-fold under the two-stage cultivation comprising 11 mM ACC and 500 mg/L FA. Furthermore, algal cells under FA treatment and the two-stage cultivation stained with Bodipy505/515 emitted stronger fluorescence under a laser confocal microscope, suggesting that lipid accumulation was increased. Additionally, the transcription levels of carotenogenic genes were also found to be up-regulated by qRT-PCR. These results indicated an enhancement in both the storage capacity and synthesis of carotenoids in D. bardawil. This study revealed the potential application of plant growth regulators in promoting carotenoid accumulation in D. bardawil which could be further improved by optimizing the culture conditions, providing a reference for efficient carotenoid production in microalgae.

A sexually and vegetatively reproducible diploid seedless watermelon inducer via ClHAP2 mutation.

Seedless watermelon production relies on triploid cultivation or the application of plant growth regulators. However, challenges such as chromosomal imbalances in triploid varieties and concerns about food safety with growth regulator application impede progress. To tackle these challenges, we developed a sexually and vegetatively reproducible inducer line of diploid seedless watermelon by disrupting the double fertilization process. This innovative approach has enabled the successful induction of diploid seedless watermelon across diverse varieties.

Effect of foliar application of plant growth regulators on growth, yield and quality of garlic (Allium sativum L.)

Effect of foliar application of plant growth regulators on growth, yield and quality of garlic (Allium sativum L.)

Nanoparticles and their crosstalk with stress mitigators: A novel approach towards abiotic stress tolerance in agricultural systems

Plants are exposed to adverse environmental conditions, including cold, drought, heat, salinity, and heavy metals, which negatively impact plant growth and productivity of edible crops worldwide. Although the previous literature summarized the nanoparticle’s involvement in abiotic stress mitigation, the interaction of nanoparticles with other stress mitigators to overcome abiotic stress from plants remains unclear. Currently, nanotechnology is considered a growing new field in agriculture for understanding plants’ adapted stress tolerance mechanisms. Recent research has shown that nanoparticles can effectively mitigate abiotic stress by interacting synergistically with plant growth regulators. To address this, we comprehensively demonstrated the combined positive potential of nanoparticles in combination with plant growth regulators (signaling molecules, phytohormones, nanoparticles-nanoparticles interaction, fungi, plant growth promoting rhizobacteria and other metal salts) to improve plant growth and mitigate abiotic stresses. Their co-applications augment the plant’s growth, nutrient uptake, antioxidant defense system, water absorption, cell viability, water use efficiency, and photosynthetic and biochemical attributes by reducing oxidative stressors under various abiotic stresses in different plant species. This review provides a comprehensive overview of the combined applications of nanoparticles and plant growth regulators, a novel strategy to reduce the harmful effects of abiotic stress on plants. It identifies research gaps and recommends future studies to overcome their phytotoxicity worldwide.

Innovations in Date palm(Phoenix dactylifera L.) micropropagation: detailed review of in vitro culture methods and plant growth regulator applications

Innovations in Date palm(Phoenix dactylifera L.) micropropagation: detailed review of in vitro culture methods and plant growth regulator applications

Retraction: Responses of Rapid Viscoanalyzer Profile and Other Rice Grain Qualities to Exogenously Applied Plant Growth Regulators under High Day and High Night Temperatures.

Retraction: Responses of Rapid Viscoanalyzer Profile and Other Rice Grain Qualities to Exogenously Applied Plant Growth Regulators under High Day and High Night Temperatures.

Physiological Indexes in Seed Germination and Seedling Growth of Rangpur Lime (Citrus limonia L. Osbeck) under Plant Growth Regulators

The propagation of citrus seedlings is accomplished through grafting, utilizing seeds for the production of rootstocks. The germination of certain seeds may be low and uneven, complicating the production of high-quality seedlings. The use of plant growth regulators (PGRs) is a viable alternative to improve the quality of seedling production, as these compounds can break dormancy, control the hydrolysis of reserves, induce cell division, and regulate permeability and protein functions. This study aimed to evaluate the germination of seeds and the growth of Rangpur lime (Citrus limonia L. Osbeck) seedlings under the influence of imbibition in solutions of gibberellic acid (GA3) and a combination of GA4+7 + 6Benzyladenine. The experiment was conducted under controlled laboratory and greenhouse conditions, using a completely randomized design in a 2 × 5 factorial scheme, with two types of plant regulators (GA3 and GA4+7 + 6BA) at five concentrations (0, 250, 500, 750, and 1000 mg L−1 a.i.). Quantitative and qualitative variables were evaluated, ranging from seed germination to seedling development and formation, including germination percentage and speed index, fresh and dry biomass of roots and shoots, enzymatic activity, and gas exchange. The results indicate that GA3 significantly accelerates the germination process of Rangpur lime cv. Santa Cruz seeds and promotes better seedling growth and development, resulting in vigorous seedlings. These findings demonstrate that the application of PGRs, particularly GA3, can substantially enhance the propagation efficiency of citrus rootstocks, offering a practical solution for improving the uniformity and quality of seedling production in commercial settings.

Combined physiological, metabolomic and response surface approaches to analyze copper stress resistance mechanisms and repair potential of Epipremnum aureum

Phytoremediation is commonly used to remediate copper (Cu) pollution in water bodies. Epipremnum aureum is often used as a restoration plant because of its rapid reproduction, high population density and high landscape value. However, neither its ability to remediate Cu-polluted water nor its mechanism of resistance to Cu stress has been fully clarified. Therefore, the present study revealed the Cu removal ability and resistance mechanism of E. aureum through physiology and metabolomics. And based on the results of this study, the response surface was applied to the application of plant growth regulator (PGR) to propose a precise restoration program. We first examined the growth physiological indices and repair of Cu in E. aureum under different Cu stress levels and found that the resistance mechanism of E. aureum to Cu was significantly initiated at 400 mg·L-1. And as the level of Cu stress increased, the Cu content in the plant also increased, and the underground part was the main accumulating part. The translocation factor of E. aureum was <1, and the bioconcentration factor was greater than 1 at all different Cu concentrations. Subsequently, metabolomics studies on E. aureum concluded that arginine and proline metabolism, indole alkaloid synthesis and brassinosteroid biosynthesis are the major pathways involved in the mechanism of Cu stress resistance in E. aureum. Based on these results, we proposed that salicylic acid, sodium nitroprusside and 2,4-epibrassinolide could be selected as PGRs, and further optimized the administration of PGRs using response surfaces. The optimized scheme allowed E. aureum to reach a maximum Cu removal of 84.39 % under 400 mg·L-1 Cu stress, which was 35.61 % higher than the non-fortified treatment. This study provides supporting materials and application options for the Cu repair capacity and resistance mechanisms of E. aureum.

Assessing the impact of exogenous application of plant growth regulators on the economics of watermelon (Citrullus lanatus Thunb.) with mulching

Assessing the impact of exogenous application of plant growth regulators on the economics of watermelon (Citrullus lanatus Thunb.) with mulching

Effects of Foliar Application of Plant Growth Regulators on germination Enzyme Activities in the Wild Barely (&amp;lt;i&amp;gt;Hordeum spontanium&amp;lt;/i&amp;gt;)

Wild barley, from the Gramineae family, due to primary dormancy, is one of the most important weed in wheat. We hypothesized that foliar application of plant growth regulators (PGRs) affects breaking dormancy in wild barley via germination enzyme activities and seed germination immediately on the mother plant to reduce soil seed bank. To measure the activity of enzymes alpha-amylase, protease, and invertase, two experiments were conducted based on a completely randomized design with 3 replications at the University of Kurdistan farm and Laboratory in 2016 and 2017. In the first experiment the highest and lowest alpha-amylase activity was obtained in gibberellin treatment at a concentration of 100 mgL&amp;lt;sup&amp;gt;-1&amp;lt;/sup&amp;gt; and control treatment on hull seed, respectively. The activity of protease enzyme in applied treatments had a similar trend as 100 mgL&amp;lt;sup&amp;gt;-1&amp;lt;/sup&amp;gt; of gibberellin treatment. The highest and the lowest protease activities were 12.62 and 3.82 Ug&amp;lt;sup&amp;gt;-1&amp;lt;/sup&amp;gt; related to gibberellin treatment at a concentration of 100 mgL&amp;lt;sup&amp;gt;-1&amp;lt;/sup&amp;gt; and control treatment, respectively. The second experiment was conducted to investigate the effect of time of PGRs foliar application on the parent plant on the activity of enzymes. Gibberellin 100 mg&amp;lt;sup&amp;gt;-1&amp;lt;/sup&amp;gt;, salicylic acid 0.5, and 1 mM treatment on the mother plant produced the highest alpha-amylase, invertase, and protease activities when used after 50 days after pollination, there was no uniform trend in enzymes activity. In general, gibberellin treatment at a concentration of 100 mgL&amp;lt;sup&amp;gt;-1&amp;lt;/sup&amp;gt; 50 days after pollination produced the highest activities of germination enzyme activities.

Drought Stress Effects and Ways for Improving Drought Tolerance in Impatiens walleriana Hook.f.—A Review

Drought is one of the main abiotic stresses affecting plant growth and development. Reduced plant yield and quality are primarily caused by the reductions in photosynthesis, mineral uptake, metabolic disorders, damages from the increased production of reactive oxygen species, and many other disruptions. Plants utilize drought resistance mechanisms as a defense strategy, and the systems’ activation is dependent upon several factors, including plant genotype, onthogenesis phase, drought intensity and duration, and the season in which the drought occurs. Impatiens walleriana is a worldwide popular flowering plant recognized for its vibrant flower colors, and is an indispensable plant in pots, gardens and other public areas. It prefers well-draining, moisturized soil, and does not perform well in overly dry or waterlogged conditions. Consequently, inadequate water supply is a common problem for this plant during production, transportation, and market placement, which has a substantial impact on plant performance overall. This review article outlines certain features of morphological, physiological, and molecular alterations induced by drought in ornamental, drought-sensitive plant species I. walleriana, as well as research carried out to date with the aim to improve the drought tolerance. Stress proteins aquaporins and dehydrins, whose molecular structure was described for the first time in this plant species, are highlighted specifically for their role in drought stress. Furthermore, the effective improvement of drought tolerance in I. walleriana by exogenous application of Plant Growth Regulators and Plant Growth-Promoting Bacteria is discussed in detail. Finally, this review can provide valuable insights for improving plant resilience and productivity in the face of water scarcity, which is critical for sustainable agriculture and horticulture.