Rapid Effect of Nitrogen Supply for Soybean at the Beginning Flowering Stage on Biomass and Sucrose Metabolism

Zhou, Hongli; Yao, Xingdong; Zhao, Qiang; Zhang, Wei; Zhang, Bo; Xie, Futi

doi:10.1038/s41598-019-52043-6

Cited by 14 publications

(8 citation statements)

References 43 publications

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“…These results reflect the differences in N functions for SG production at different growth stages. Thus, the accumulated N during the early growth stage is mainly functioned in plant growth and biomass formation, while the N after the vegetative growth stage should consider the leaf secondary metabolism (Khan et al 2020;Zhou et al 2019b). Collectively, as plant growth processes, the contribution of stevia biomass to TSG yield decreases, which is the opposite trend as the contribution of SG concentrations.…”

Section: N and Tsg Accumulation At Different Growth Stagesmentioning

confidence: 99%

Optimized Nitrogen Topdressing Strategies Enhance Steviol Glycoside Productivity in Stevia (Stevia rebaudiana Bertoni) Plants

Sun

Yang

Hou

et al. 2020

J Soil Sci Plant Nutr

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The nitrogen (N) management is crucial to stevia growth and steviol glycoside (SG) production. Although previous studies have concentrated on the impacts caused by N fertilization rates, very few studies are concerning N topdressing strategies. We hypothesized that stevia biomass and SG productivity can be effectively increased by altering the ratio of base fertilization:first topdressing at the seedling stage:second topdressing at the branching stage. The current plot experiment was undertaken to evaluate such effects. Compared with one-time basal fertilization, optimized N topdressing ratios (especially the 5:3:2 and 4:3:3 ratios) significantly enhanced the leaf biomass formation and aboveground N accumulation. Different results were observed for the leaf SG concentrations, and increasing the topdressing proportions critically reduced the total leaf SG concentrations (3.3-24.7%) at the harvest stage. The highest values for total SG accumulation were exhibited under the 6:4:0 and 5:3:2 topdressing strategies, which depend on the changes in biomass and SG concentration. Moreover, a significant negative correlation between leaf SGs and the N concentration was observed at all growth stages, but a positive correlation was observed with the leaf C/N ratio and soluble sugar concentrations. Our results suggest the potential for increasing SG productivity by optimizing N fertilization regimes, especially with an appropriate reduction in the topdressing ratio after the vegetative growth stage. Our findings further expanded the effect of topdressing strategies on SG production based on the N fertilization levels.

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Section: N and Tsg Accumulation At Different Growth Stagesmentioning

confidence: 99%

Optimized Nitrogen Topdressing Strategies Enhance Steviol Glycoside Productivity in Stevia (Stevia rebaudiana Bertoni) Plants

Sun

Yang

Hou

et al. 2020

J Soil Sci Plant Nutr

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“…Nutrition competition among sourced and sink organs caused flowers and pod abortion and abscission, decreasing soybean pod number and grain yield ( Raza et al, 2020 ). Nitrogen application at the R1 stage increased the soybean grain yield by promoting biomass accumulation during the soybean reproductive growth stage ( Zhou H. et al, 2019 ). Similarly, results in this experiment showed that the DA-6 significantly ( p < 0.05) increased the soybean aboveground dry matter ( Figure 5 ), and the yield and yield components of soybean ( Table 3 ).…”

Section: Discussionmentioning

confidence: 99%

Diethyl Aminoethyl Hexanoate Increase Relay Strip Intercropping Soybean Grain by Optimizing Photosynthesis Aera and Delaying Leaf Senescence

et al. 2022

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Insufficient and unbalanced biomass supply inhibited soybean [Glycine max (L.) Merr.] yield formation in the maize-soybean relay strip intercropping (IS) and monoculture soybean (SS). A field experiment was conducted to explore the soybean yield increase mechanism of DA-6 in IS and SS treatments. In this 2-year experiment, compact maize “Denghai 605” and shade-tolerant soybean “Nandou 25” were selected as cultivated materials. DA-6 with four concentrations, i.e., 0 mg/L (CK), 40 mg/L (D40), 60 mg/L (D60), and 80 mg/L (D80), were sprayed on soybean leaves at the beginning of flowering stage of soybean. Results showed that DA-6 treatments significantly (p < 0.05) increased soybean grain yield, and the yield increase ratio was higher in IS than SS. The leaf area index values and net photosynthesis rate of IS peaked at D60 and were increased by 32.2–49.3% and 24.1–27.2% compared with the corresponding CK. Similarly, DA-6 treatments increased the aboveground dry matter and the amount of soybean dry matter accumulation from the R1 stage to the R8 stage (VDMT) and highest at D60 both in IS and SS. D60 increased the VDMT by 29.0–47.1% in IS and 20.7–29.2% in SS. The TRG at D60 ranged 72.4–77.6% in IS and 61.4–62.5% in SS. The MDA content at D60 treatment was decreased by 38.3% in IS and 25.8% in SS. The active grain-filling day in IS was about 7 days longer than in SS. In D60 treatment, the Vmean and Vmax increased by 6.5% and 6.5% in IS and 5.7% and 4.3% in SS compared with the corresponding CK. Although the pod number and hundred-grain weight were significantly (p < 0.05) increased by DA-6 treatments, the grains per pod were maintained stable. The pod number and hundred-grain weight were increased by 30.1–36.8% and 4.5–6.7% in IS and 6.3–13% and 3.6–5.6% in SS. Thus, the grain yield at D60 was increased by 36.7–38.4% in IS and 21.7–26.6% in SS. DA-6 treatments significantly (p < 0.05) increased soybean grain yield and peaked D60 treatments both in IS and SS.

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“…As a legume crop, soybean could convert atmospheric nitrogen into biological ammonium with the help of symbiotic bacteria in root nodules by biological nitrogen fixation (Zhou et al, 2019). And the soybean nodule number and nodule weight were important phenotype indicators that reflect the ability of root nodules on biological nitrogen fixation.…”

Section: Soybean Nodule Phenotype and The Sucrose And Starch Metabolismmentioning

confidence: 99%

Compensatory Growth of Soybean after Shade during Vegetative Promotes Root Nodule Recovery

Yuan

Kai

Zuo

et al. 2022

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Background: The recovery growth of soybean after environmental stress, especially shade stress, is essential for soybean to alleviate the yield loss caused by shade. Although the mechanism of recovery growth on leaves has been intensely researched, little is known about the mechanism of compensatory growth on soybean nodule formation. Methods: This study aimed to investigate the effect of recovery growth after shade on soybean nodule formation and the distribution of carbohydrates in root nodules. Four shade treatments, including vegetative period shade (VS), reproductive period shade (RS), total growth period shade (TS) and no shade as control (CK), were applied on monoculture soybean by using a black mesh shading net with light transmittance of 50%. Result: The aboveground dry weight, nodule number and weight and grains yield were lowest in TS and those values in VS were higher than in RS. Compared with RS, VS increased the nodule weight by 75.6% and the sucrose and starch content by 19.3% and 15.6%, respectively. We suggested that, compared with RS, VS improved the compensation growth of soybean and promoted the carbohydrate distribution into nodules, ultimately reducing the negative effect on soybean nodule formation and yield production.

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Rapid Effect of Nitrogen Supply for Soybean at the Beginning Flowering Stage on Biomass and Sucrose Metabolism

Cited by 14 publications

References 43 publications

Optimized Nitrogen Topdressing Strategies Enhance Steviol Glycoside Productivity in Stevia (Stevia rebaudiana Bertoni) Plants

Optimized Nitrogen Topdressing Strategies Enhance Steviol Glycoside Productivity in Stevia (Stevia rebaudiana Bertoni) Plants

Diethyl Aminoethyl Hexanoate Increase Relay Strip Intercropping Soybean Grain by Optimizing Photosynthesis Aera and Delaying Leaf Senescence

Compensatory Growth of Soybean after Shade during Vegetative Promotes Root Nodule Recovery

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