Molecular mechanism of negative pressure irrigation inhibiting root growth and improving water use efficiency in maize

Zhang, Jili; Ji, Jinfeng; Wang, Peng; Long, Huaiyu; Wu, Xia

doi:10.1007/s11104-021-05190-7

Cited by 6 publications

(14 citation statements)

References 56 publications

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“…Numerous studies have been conducted on soil water-plant relations, with soil moisture primarily represented as soil water content (SWC) [3][4][5]. Recently, a newly innovated irrigation technique, named the pressure potential difference-crop initiate drawing water device or negative pressure irrigation (NPI), has been widely employed in experimental investigations and partially applied in agricultural production [6][7][8][9][10]. Yang [11] found that NPI improved WUE and yield of Brassica chinensis L. Zhang [12] showed that the activities of antioxidant enzymes and concentrations of osmotic adjustment substances in maize decreased under NPI, resulting in a substantial increase in maize dry matter accumulation and yield.…”

Section: Introductionmentioning

confidence: 99%

Stable Soil Moisture Alleviates Water Stress and Improves Morphogenesis of Tomato Seedlings

Long

Zhang

et al. 2023

Horticulturae

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Previous studies on soil water–plant relations have mostly focused on the soil water content (SWC), while the effect of soil moisture stability on plant growth has received surprisingly little attention. Potted tomato seedlings were used to examine the effect of stable soil moisture (SM) and fluctuating soil moisture (FM) on plant growth, development, and water use efficiency (WUE) in this study. The results showed that (i) soil moisture stability significantly affected the growth and development, photosynthetic characteristics, morphological traits, root morphology, and water physiological characteristics of seedling tomatoes, with SM being more conducive for most of these indices. (ii) SM improved the leaf WUE by reducing the content of abscisic acid in plants, regulating plant osmotic substances, maintaining a high gas exchange rate, and promoting plant morphology. (iii) SM could avoid water stress on tomato seedlings; even if the SWC of SM was equal to or lower than the SWC of FM, water stress would not occur under SM, whereas it would occur under FM. Overall, compared with FM, SM promoted beneficial plant morphology, maintained a high gas exchange rate, and did not induce water stress for tomato seedlings—ultimately improving WUE. This effect was more effective under low-SWC conditions than under high-SWC conditions. These findings provide a new perspective and theoretical basis for soil water–plant relations and indicate that SM has great potential in promoting plant growth and improving WUE.

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Section: Introductionmentioning

confidence: 99%

Stable Soil Moisture Alleviates Water Stress and Improves Morphogenesis of Tomato Seedlings

Long

Zhang

et al. 2023

Horticulturae

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“…Previous studies have shown that in respond to water stress, plants simultaneously accumulate more proline, malondialdehyde, and soluble sugars ( Al-Yasi et al., 2020 ; Wahab et al., 2022 ). It has been reported that alternating soil water treatment was found to considerably increase the contents of proline, malondialdehyde and soluble sugars in maize roots when compared to the SW status under NPI treatments ( Zhang et al., 2022a ; Zhang et al., 2022b ). Furthermore, studies have shown that stabilizing soil moisture alleviated maize’s short-term water stress ( Niu et al., 2022 ).…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, studies on maize ( Zea mays L.) have shown that SW could significantly promote economic factors in addition to growth and yield, compared with soil water state under wet and dry conditions ( Zhang et al., 2021b ; Zhang et al., 2022b ). Despite these promising effects of SW conditions on the aboveground yield of the assessed crops ( Niu et al., 2022 ; Yang et al., 2022b ; Zhang et al., 2022a ), their effects on root crops, particularly root vegetables, remain unknown.…”

Section: Introductionmentioning

confidence: 99%

Effects of stable and fluctuating soil water on the agronomic and biological performance of root vegetables

Li,

Zhu,

Liu

et al. 2024

Front. Plant Sci.

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Compared to fluctuating soil water (FW) conditions, stable soil water (SW) can increase plant water use efficiency (WUE) and improve crop growth and aboveground yield. It is unknown, however, how stable and fluctuating soil water affect root vegetables. Here, the effects of SW and FW were studied on cherry radish in a pot experiment, using negative pressure irrigation and conventional irrigation, respectively. The assessed effects included agronomic parameters, physiological indices, yield, quality and WUE of cherry radish. Results showed that under similarly average soil water contents, compared with FW, SW increased plant photosynthetic rate, stomatal conductance and transpiration rate, decreased leaf proline content by 13.7–73.3% and malondialdehyde content by 12.5–40.0%, and increased soluble sugars content by 6.3–22.1%. Cherry radish had greater biomass accumulation and nutrient uptake in SW than in FW. Indeed, SW increased radish output by 34.6–94.1% with no influence on root/shoot ratio or root quality. In conclusion, soil water stability affected directly the water physiological indicators of cherry radish and indirectly its agronomic attributes and nutrient uptake, which in turn influenced the crop biomass and yield, as well as WUE. This study provides a new perspective for improving agronomy of root crops and WUE through managing soil water stability.

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“…Crop and soil systems are consistently in a state of passively receiving irrigation water [5,9]. In the past 20 years, negative pressure irrigation (NPI) technology has been developed, which is based on the active absorption of soil water by crops, and water enters the soil under the driving forces of the physiological activities of crop transpiration and water consumption characteristics, which can continuously and smoothly supply crops with water for its absorption and utilization from soil [5,[10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…NPI also improves the absorption of nutrients and the utilization efficiency of nutrients by crops [15][16][17]. In addition, NPI affects the soil nutrient availabilities and spatial distributions, soil microbial diversities, and soil and plant enzyme activities [9,11,22,23]. The study also found that NPI increased the microbial diversities in the rhizospheres of rape and tomato (OUT, Chao1, Shannon) and the activities of catalase, urease, and phosphatase in pepper and tomato soils [9,24,25], and it decreased the levels of the superoxide anion, malondialdehyde, proline, catalase, and polyphenol oxidase in maize under NPI conditions [26].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Assessment of Plant and Water Productivity Responses in Negative Pressure Irrigation Technology: A Meta-Analysis

et al. 2022

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Negative pressure irrigation (NPI) is an important water management strategy that can improve crop yields and water use efficiency (WUE). However, because NPI is affected by vital factors, such as negative pressure values, soil properties, and fertilization dosages, there is a lack of systematic analyses of the application effects of NPI on various crops. Hence, this study collected the results of 44 published studies and established the validity of 142 crop yields, 121 WUEs, 138 crop qualities, and 138 crop nutrient statuses in a database for NPI systems. The meta-analysis method was used to analyze NPI in comparison to conventional irrigation (CI) conditions. The results showed that the NPI yields and WUEs significantly improved by 17% and 63% compared to those of CI, respectively. Meanwhile, the negative pressure values were −2~−5 kPa; the improvement effects on yields were the best; and the WUEs exhibited the highest performance with negative pressure values of −6~−10 kPa. NPI promoted crop quality and plant nutrient uptakes under the appropriate NPI conditions. The synergistic impacts for sandy loam, alkalescent soils, and leafy vegetables were greater than for clay loam, neutral soils, and fruit vegetables under NPI conditions. Simultaneously, it was shown that the soil available phosphorus content and application of P fertilizer have a greater impact on NPI and CI crop yields. Therefore, the meta-analysis demonstrated the impacts of NPI on crop yields, WUEs, quality, and nutrient absorption, and quantified the effects of NPI on crop growth under various conditions, which provides an important water-saving technology for greenhouse production.

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Molecular mechanism of negative pressure irrigation inhibiting root growth and improving water use efficiency in maize

Cited by 6 publications

References 56 publications

Stable Soil Moisture Alleviates Water Stress and Improves Morphogenesis of Tomato Seedlings

Stable Soil Moisture Alleviates Water Stress and Improves Morphogenesis of Tomato Seedlings

Effects of stable and fluctuating soil water on the agronomic and biological performance of root vegetables

Comprehensive Assessment of Plant and Water Productivity Responses in Negative Pressure Irrigation Technology: A Meta-Analysis

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