However, the acteoside concentration in the immature leaves tended (Kruskal–Wallis H statistic p = 0.064) to show a positive trend with increasing light intensity, being 5.67 mg g −1 DM for L200, 10.0 mg g −1 DM for L300 and 12.8 for L400. 2.6.
Under stress conditions, gs at pod-filling showed a significant negative correlation with pod yield per plant in 2024, whereas in 2025, a negative trend was observed but the association was not statistically significant.
In both cultivars, the maximum stem number increased significantly with increasing density, whereas the productive stem percentage showed a decreasing trend.
In contrast, LS showed an increasing trend in WUE from D2 to D4 and then maintained a relatively high plateau at D4–D5, with only a slight and insignificant decrease (3.7–4.2%) at the highest density. 3.
In the ear-leaf Pearson correlation network, ZmSPL19 showed only a limited number of nominally significant correlations with known NUE genes, but these correlations suggested a weak bias toward positive association with assimilation-related genes and negative association with part of the uptake/transport module ( Figure 2 b).
In contrast, after 12 days of salt stress, TaRS15-3B overexpression lines exhibited a highly significant increase in POD activity and MDA content compared to a wild type [ 34 ].
When used, we obtained an R 2 = 0.533 (explaining 53.3% of total variance) and a highly significant p -value (≤0.001), indicating extreme differences both between and within the treatment groups ( Figure 15 B).
(3) Proline content Proline (Pro) content in alfalfa leaves showed an increasing trend with the progression of planting years and was significantly influenced by the type of water-retaining agent, the application rate, and their interaction ( p < 0.05, Figure 4 ).
The results showed that alfalfa plant height, stem diameter, leaf area, branch number, soluble sugar (SS), soluble protein (SP), and proline (Pro) all exhibited a decreasing trend with increasing cutting times.
Because highly significant differences were observed among plant species for all variables except relative consumption (RC), additional one-way ANOVAs were conducted for each species separately, with Si supplementation as the sole fixed factor.
In these overexpression lines, transcript accumulation of AmGGPPS1 was significantly downregulated, whereas AmGGPPS2 exhibited highly significant upregulation, with its expression level positively correlated with that of AmGPPS6 ( Figure 8 b).
As the depth of straw return increases, SM, SS, and DS type fulvic acid substances show an increasing trend, with the proportions of components in the three treatments being 34.8%, 51.1%, and 54.9%, respectively.
In the maize season, WSOC exhibited a highly significant positive correlation with SOC, as well as a significant positive correlation with FI, HIX, and component C1.
OsAGO18 is assigned to the MEyellow module, which exhibits a highly significant positive correlation specifically with the “normal” developmental baseline and negative correlations with stress-induced states; Figure S2: Identification of transgenic plants.
The suitable habitat area of this forest exhibits a decreasing trend under different future climate scenarios when dispersal limitations are incorporated ( Figure 7 ).
Meanwhile, as the growth stage progressed, the stem breaking resistance of maize under all treatments exhibited a continuous decreasing trend, whereas rind puncture strength showed a trend of first increasing and then decreasing, reaching a peak at 15 days after the silking stage.
Overall, correlations of varying strengths were detected among the measured traits, and most growth-related variables showed significant or highly significant positive correlations.
Our results indicate that: (1) the life cycle extraction method achieved a classification accuracy exceeding 80%, and from 2001 to 2022, the overall distribution of early-spring ephemeral plants exhibited an increasing trend; (2) snowend, snowday, and precipitation during the driest quarter were the primary drivers of ephemeral plant distribution, collectively explaining over 60% of the observed variation, and structural equation modeling further revealed that snow and precipitation had significant positive effects on their distribution; and (3) under future climate scenarios, Medium-NDVI areas are projected to expand northward and westward, with the potential emergence of new suitable habitats in northern localities by mid-century.
By analyzing the local and SR at 18 h in both induced and constitutive leaves of the damaged plants, a clear trend in the response to the stimulus was noticed, with the levels of some defense-related metabolites increasing.