Plant Molecular Biology Reporter, Год журнала: 2024, Номер 42(3), С. 435 - 449
Опубликована: Фев. 16, 2024
Язык: Английский
Agronomy, Год журнала: 2023, Номер 13(7), С. 1749 - 1749
Опубликована: Июнь 28, 2023
Jatropha curcas L. is a promising bioenergy source, and its seedling stage sensitive to salinity. Nitrogen application presents an effective strategy for alleviating the adverse consequences of salinity stress. However, responses plant growth physiology seedlings nitrogen under stress remain unclear. As result, one-year greenhouse plot experiment was conducted investigate effects on growth, antioxidant enzyme activity, photosynthesis saline conditions. Experiment treatments consisted three stresses (mild stress, S1: 2 g/kg; moderate S2: 4 severe S3: 6 g/kg), four rates (N0: 0 gN/plant; N1: 20 N2: 60 N3: 100 gN/plant), control treatment (CK) which without application. The results showed that substantially reduced seedlings. increased, reduction in also increased. S3 had lowest leaf area, biomass, total decreased by average 70.4%, 66.3%, 69.9%, respectively, compared CK. could compensate these impairments from promoting activity photosynthesis. mild stresses, maximum found N3 treatment, with photosynthetic pigment, characteristic, chlorophyll fluorescence. higher N2 treatments, there were no significant differences between treatments. It should be noted characteristic fluorescence In conclusion, alternative improve tolerance growth. rate gN/plant recommended low while (>100 gN/plant) reactive oxygen species further evaluated.
Язык: Английский
Процитировано
9
Agronomy, Год журнала: 2025, Номер 15(2), С. 332 - 332
Опубликована: Янв. 28, 2025
The root system plays an important role in the efficient absorption of nitrogen (N), but there is limited understanding growth characteristics maize roots different genotypes and their dynamic response to N supply. In this study, landraces 1950s modern hybrids, hybrids parents, inbred lines with efficiency standard line B73 were used, combined culture method, observe changes under long-term stress conditions. results showed that genotypic differences low N. Low enhances earlier than increases shoot-to-root dry matter allocation. With extension stress, biomass each genotype basically increased significantly from 3 6 days then was gradually reversed by high on 12th day. As for shoot biomass, 11 began decrease 9 after low-N stress. total axial length, primary seminal first second whorl crown length seven more or less number third fourth decreased significantly, which indicated regulation elongation initiation. degree increased, trend lateral could be divided into three categories, indicating genotype-dependent. advancement breeding process, become smaller responsive phenotypes Zhengdan958 Xianyu335 come genetic models. Compared embryonic roots, have a active adapting Shoot concentration may reflect plant internal status, regulatory morphogenesis.
Язык: Английский
Процитировано
0
Agrosystems Geosciences & Environment, Год журнала: 2025, Номер 8(1)
Опубликована: Март 1, 2025
Abstract Understanding the effect of nitrogen (N) rates on hemp ( Cannabis sativa ) cultivation is crucial for optimizing crop yield and quality. This study evaluated effectiveness handheld (active) drone (passive) sensors in measuring reflectance predicting key growth parameters response to varying N application rates. The was conducted during summer 2022 at Plant Science Research Education Unit Citra, FL. trial involved three cultivars—NWG‐2730, Yuma, IH‐Williams—subjected six (0, 56, 112, 168, 224, 280 kg/ha). Reflectance data were collected 76 days after planting calculate normalized difference vegetation index (NDVI) red edge (NDRE). Results indicated that increased led higher NDVI NDRE values cultivars had not yet reached senescence. from sensor showed strongest relationship with most accurate predictor in‐season biomass yield, final plant height. However, predictive efficiency varied by cultivar decreased as plants approached Early‐season sensing proved more reliable due lower impact senescent leaves. highlights potential technology cultivation, offering insights into forecasting, variable management, high‐throughput phenotyping. Future research should further explore enhance precision agriculture practices cultivation.
Язык: Английский
Процитировано
0
Journal of Agriculture and Food Research, Год журнала: 2025, Номер unknown, С. 101839 - 101839
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
Journal of soil science and plant nutrition, Год журнала: 2025, Номер unknown
Опубликована: Апрель 23, 2025
Abstract With rising climate anomalies and deterioration of ecological balance, water shortage has emerged as a major environmental problem faced by mankind, which considerably limited agricultural productivity worldwide. Drought stress generates an insidious hazard destabilizing global hydrological cycle due to its increased frequency, severity associated adverse impacts on conditions, drought obtained attention world over. Exposure severe acute disturbs physiological functioning plants inhibits the efficiency photosynthetic system. As result, lesser photosynthate production causes lower plant biomass yield. Hence, it is imperative sustain improve growth under conditions minimize dreadful impacts. Current review summarizes various crops, alleviation strategies adaptations encountered stress. More importantly, current emphasizes beneficial roles played macronutrients such nitrogen (N) potassium (K) in alleviating these essential nutrients have reportedly been involved negative therefore, information article revolves around N K supply In addition, necessitates use optimum doses fertilizers ensure maximum resource utilization resilience.
Язык: Английский
Процитировано
0
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
WSEAS TRANSACTIONS ON ENVIRONMENT AND DEVELOPMENT, Год журнала: 2025, Номер 21, С. 417 - 425
Опубликована: Май 14, 2025
This study examines the effects of sewage sludge and wastewater on soil parameters photosynthetic traits in Dahlia variabilis. Applying to reduces pH, increases electrical conductivity, enhances fertility by boosting nitrogen (N) phosphorus (P) availability. Plants treated with show increased assimilation rates, higher stomatal conductance, elevated chlorophyll content, particularly at levels above 8 g/kg soil. However, zeaxanthin levels, which contribute photoprotection, decrease high treatment while increasing wastewater-treated plants, indicating stress. highlights complex relationship between nutrient availability efficiency
Язык: Английский
Процитировано
0
Saudi Journal of Biological Sciences, Год журнала: 2023, Номер 31(1), С. 103876 - 103876
Опубликована: Ноя. 26, 2023
Mesembryanthemum crystallinum L. is an annual halophyte that originated from southern Africa. However, little has been reported about factors modulate the quantity of secondary metabolites in plant. In this study, twin effect different nitrogen concentrations (0.36, 0.6, 0.8 g/L) and growing media (LECA clay, peat, vermiculite silica sand) on plant growth, chlorophyll contents, minerals, proximate antioxidant hydroponically cultivated M. was investigated. This important to determine dosage N fertilizer will optimize bio-productivity biosynthesis antioxidants grown a hydroponic system. The untreated (0 g/L N) taken as control. At end experiment, optimum yields leaf number (9.2), fresh weight (50.40g), Ca, N, Protein (34.04%) were recorded with peat enhanced dosages N-fertilizer. Likewise, level, dry weight, ABTS/TEAC, FRAP, ADF NDF contents optimized LECA clay treated Silica sand 0.36 P, Mn Zn levels, so also moisture (9.83% at 0.8g/L N), fat (2.38%, 0g/L carbohydrates (44.98 44.95%). highest ash content, Mg Fe well polyphenols K, 0.6g/L; Cu root length (14.60 cm), 0.8g/L. conclusion, could enhance growth potential, chlorophyll, phytochemicals, nutritional properties crystallinum.
Язык: Английский
Процитировано
7
Applied Soil Ecology, Год журнала: 2023, Номер 190, С. 104991 - 104991
Опубликована: Июнь 16, 2023
Язык: Английский
Процитировано
6
Irrigation Science, Год журнала: 2024, Номер unknown
Опубликована: Июль 17, 2024
Язык: Английский
Процитировано
2