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Experimental evaluation of milk yield and selected traits of milk quality in Clun Forest ewesOriginal PaperJan Kuchtík, Kvìtoslava ©ustová, Tomá¹ Kopec, Ferenc Pajor, Leona KoneènáCzech J. Anim. Sci., 2023, 68(7):306-312 | DOI: 10.17221/221/2022-CJAS
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Evaluation of Streptococcus species isolated from subclinical sheep mastitis by molecular methods and determination of virulence factors and antimicrobial resistance genesOriginal PaperV Ozavci, HT Yuksel Dolgun, S Kirkan, Y Seferoglu, Z Semen, U ParinVet Med - Czech, 2023, 68(9):359-367 | DOI: 10.17221/42/2023-VETMED Streptococcus (S.) species are important pathogens that cause mastitis in sheep. The study aimed to examine Streptococcus species in sheep milk with subclinical mastitis, assessing their prevalence, antimicrobial resistance, and virulence genes. A total of 200 milk samples were collected from sheep farms in İzmir’s five districts. Out of 32 (28.6%) Streptococcus isolates identified by phenotypic methods, 25 were genotypically identified as S. uberis, 5 as S. agalactiae, and 2 as S. dysgalactiae. Disk diffusion was used to determine the antimicrobial resistance of the isolates. PCR was employed to identify antimicrobial resistance and virulence genes in the isolates. The highest resistance was found for cloxacillin (100%), and the highest sensitivity was found for florfenicol (84%). The most common resistance gene combination was tetM+tetS (3/32) for S. uberis in 9.4%. A total of five virulence genes were detected. GapC+sua (56.2%) constituted the most common gene pattern. The highest virulence gene gapC was detected in 78.1% (25/32) of the isolates. The cylE gene was not detected (0%) in the isolates. Streptococcus species may play a role in mastitis in sheep, emphasising the need for meticulous hygienic milking practices. |
Assessment of the impact of agricultural support on crop diversityOriginal PaperZdeòka ®áková Kroupová, Luká¹ Èechura, Matìj Opatrný, Zuzana Hlou¹ková, Iveta MlezivováAgric. Econ. - Czech, 2023, 69(3):89-100 | DOI: 10.17221/387/2022-AGRICECON
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Acacia canopy structure and carbon stock in Ba Vi, VietnamOriginal PaperBui Manh Hung, Nguyen Thi Bich Phuong, Nguyen Van Quy, Nguyen Van Hop, Le Van Cuong, Yusif HabibJ. For. Sci., 2023, 69(1):21-32 | DOI: 10.17221/46/2022-JFS
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Sustainably produced butter: The effect of product knowledge, interest in sustainability, and consumer characteristics on purchase frequencyOriginal PaperDominika Jakubowska, Tomá¹ SadílekAgric. Econ. - Czech, 2023, 69(1):25-34 | DOI: 10.17221/294/2022-AGRICECON
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Comparison of potassium quantity-intensity relationships in tropical paddy soil under tillage and no-tillage systems after fifteen growing seasonsOriginal PaperSoni Isnaini, Maryati, A. Arivin RivaiePlant Soil Environ., 2023, 69(1):1-9 | DOI: 10.17221/337/2022-PSE The information on the behaviour of potassium (K+) in tropical paddy rice soils, which is important for a better understanding of the plant availability of K+ is still very limited. We compared the quantity-intensity (Q/I) relationships for K+ under conventional tillage and no-tillage systems in tropical paddy fields in the absence and presence of K+ fertiliser in the addition of nitrogen. The results showed that the values of the activity ratio for K (ARK) and potential buffering capacities (PBCK) in the no-tillage rice field were respectively 16% and 33% higher than that in the conventional tillage field. With the addition of K fertiliser, the value of exchangeable K in equilibrium (ΔK0) in the no-tillage paddy field was 67.9% greater than that in the conventional tillage field. This indicates that K fertilisation is more efficient when applied on a no-tillage paddy field. When the K fertiliser was added (49.8 kg K/ha), the application of N fertiliser at the rate of 115 and 184 kg N/ha resulted in a higher ARK value than that at the rate of 46 kg N/ha. This suggests that the simultaneous application of K and N fertiliser was able to increase exchangeable K in the soil. The application of no-tillage increased of the dry grain yield of rice (about 10%) compared with the application of conventional tillage. Meanwhile, there were significant relationships between the rice yield with the ARK and ΔK0. Moreover, the ARK was significantly correlated with K-uptake. |
The role of halotolerant N-fixing bacteria on rice agronomic traits on saline soils by path analysisOriginal PaperMieke Rochimi Setiawati, Betty Natalie Fitriatin, Diyan Herdiyantoro, Toto Bustomi, Fiqriah Hanum Khumairah, Nicky Oktav Fauziah, Tualar SimarmataPlant Soil Environ., 2023, 69(1):10-17 | DOI: 10.17221/386/2022-PSE Nitrogen-fixing bacteria (NFB) play a significant role in saline soil ecosystems. However, little is known about the correlation between NFB application on growth and yield components of rice plants on saline soils. Exploration and experimental methods were performed to obtain the potential of NFB from a rice field in saline soil and reinoculated in a pot experiment. The experiment was arranged as a randomised block design consisting of 8 treatments, namely inoculation application (control and seed treatments with 20 g inoculant/kg of seed) combined with soil application dosage (0, 500, 1 000 and 1 500 g/ha). The results showed that grain yield increased by 43.8–130.6% with seed treatment of 20 g inoculant/kg of seed combined with soil application 500–1 500 g inoculant/ha. Rice yield was affected by multiple variables NFB population, plant height, number of tillers, and grain straw ratio (R2 = 0.926). Path analysis findings showed that the greatest effective contribution (45.45%) yield of rice in saline soil was contributed NFB population. This finding concludes that the application of NFB inoculants as seed treatments and soil applications can serve as an effective as well as the environmentally friendly microbial-based strategy of rice cultivation on saline soil ecosystems. |
Adaptation analysis of insect-resistant transgenic line after introducing mcry1F gene in maizeOriginal PaperDaming Wang, Junqi Yin, Fengci Wu, Baifeng Wang, Zhilei Jiang, Jingang Liang, Xinyuan SongPlant Soil Environ., 2023, 69(1):18-24 | DOI: 10.17221/286/2022-PSE The ability to adapt, survive, and compete with weeds of transgenic plants is the necessary evaluation content to release transgenic lines in target regions. We compared weediness and agronomic traits of transgenic maize lines G1F-8 and G1F-19 carrying the mcry1F gene with their near-isogenic maize inbred line Zheng 58 in the wasteland and cultivated field under natural conditions for two consecutive years. The results showed that there was no significant difference identified in the species, quantity, and relative coverage ratio (RCR) of weeds between fields with G1F-8, G1F-19, and Zheng 58, regardless of the sowing pattern in the wasteland. Compared with the vigour of weeds, none of G1F-8, G1F-19, and Zheng 58 showed survival advantages, and all showed weak growth potential with no final grain yield. Meanwhile, no volunteer seedlings were found upon investigation in the following year. The simulated seed overwintering experiment in the wasteland further showed that the three kinds of maize could not germinate in the second year. In cultivated land, G1F-8 and G1F-19 had the same growth stages, plant height, and RCR as Zheng 58 throughout two years. In conclusion, the transgenic lines G1F-8 and G1F-19 exhibited no adaptability risk in Gongzhuling, Jilin, China. |
Combined effect of nitrogen and phosphorous fertiliser on nitrogen absorption and utilisation in riceOriginal PaperYating Zheng, Hong Chen, Guotao Yang, Rudan Wang, Nabi Farhan, Chong Li, Cheng Liang, Kaiqin Shen, Xuechun Wang, Yungao HuPlant Soil Environ., 2023, 69(1):25-37 | DOI: 10.17221/420/2022-PSE The objectives of this study were to investigate the nitrogen (N) and phosphorus (P) balance fertilization strategy in paddy fields, and to evaluate the effects on N uptake and utilization in rice. In 2017-2018, the experiment was conducted using Deyou4727 hybrid rice with four different P fertilizer levels (0, 30, 60, and 90 kg/ha), marked as P0, P1, P2, P3 in turn, and four different N levels (0, 90, 150, and 270 kg/ha), similarly marked as N0, N1, N2, N3 in turn. The results showed that in the N-insufficient (N0, N1) environments, the P1 treatment increased N uptake and promoted transfer to the grain. However, high-P (P3) application increased the dry matter accumulation than other P levels, but limited the production and translocation of dry matter to some extent. In N-sufficient (N2, N3) environments, P2 level increased crop yield and N use efficiency by 11.35% and 37.01%. Unlike P2, none-P (P0) and high-P levels decreased rice dry matter translocation and transport capacity, which further affected N uptake and utilization in N-sufficient environments. Overall, the combination of the N application rate of 90 kg/ha and P application rate of 30 kg/ha, N application rate of 150, 270 kg/ha, and P application rate of 60 kg/ha had a high yield; strong nutrient accumulation and transfer ability. It was more inclined to balance N and P, which was beneficial to plant N absorption and utilization. |
Effect of feeding a diet containing housefly (Musca domestica) larvae extracts on growth performance in broiler chickensOriginal PaperSang-O ParkCzech J. Anim. Sci., 2023, 68(1):44-51 | DOI: 10.17221/168/2022-CJAS
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Soil quality assessment using SAS (Soil Assessment System)Original PaperDaniel Toth, Jaroslava Jankù, Adéla Marie Marhoul, Josef Kozák, Mansoor Maitah, Jan Jehlièka, Luká¹ Øeháèek, Richard Pøikryl, Tomá¹ Herza, Jan Vopravil, David Kincl, Tomá¹ KhelSoil & Water Res., 2023, 18(1):1-15 | DOI: 10.17221/141/2022-SWR The paper proposes a new soil evaluation system using the principle of the Saaty method. The Saaty method has been modified and named Soil Assessment System (SAS). Significance weights are assigned to individual soil characteristics (indicators). This provides a more detailed differentiation of the significance of the indicator on soil quality and a more accurate assessment, especially in marginal cases where the assessment by the methods used so far has not been fully conclusive. In addition to physico-chemical properties, other criteria are taken into account to assess not only productional but also non-productional functions. The possibility of using indicators referring to a broader context (e.g., soil sealing value) is also important, thus enabling a comprehensive assessment of the quality of the land. This results in points for individual sampling locations. Soils are categorized according to the number of points and results are shown on maps. |
Prediction of saturated hydraulic conductivity Ks of agricultural soil using pedotransfer functionsOriginal PaperKamila Bá»ková, Svatopluk Matula, Markéta Miháliková, Eva Hrúzová, David Kwesi Abebrese, Recep Serdar Kara, Cansu AlmazSoil & Water Res., 2023, 18(1):25-32 | DOI: 10.17221/130/2022-SWR The determination of the saturated hydraulic conductivity Ks on a field scale presents a challenge in which several variables have to be considered. As there is no benchmark or reference method for the Ks determination, the suitability of each available method has to be evaluated. This study is aimed at the functional evaluation of three publicly available types of pedotransfer functions (PTFs) with different levels of utilised predictors. In total, ten PTF models were applied to the 56 data sets including the measured Ks value and the required predictors (% sand, silt and clay particles, dry bulk density, and organic matter/organic carbon content). A single agricultural field with a relatively homogenous particle size distribution was selected for the study to evaluate the ability of the PTF to reflect the variability of Ks. The correlation coefficient, coefficient of determination, mean error, and root mean square error were determined to evaluate the Ks prediction quality. The results showed a high variability in Ks within the field; the measured Ks values ranged between 10 and 1261 cm/day. Although the tested PTF models are based on a robust background of soil databases, they could not provide estimates with satisfactory accuracy unless local soil data were incorporated into the PTF development. |
Factors affecting the in vitro embryo production in buffalo (Bubalus bubalis): A reviewReviewS Kumar, MS Chaves, AFB da Silva, WG Vale, STR Filho, JC Ferreira-Silva, LM Melo, VJF FreitaVet Med - Czech, 2023, 68(2):45-56 | DOI: 10.17221/48/2022-VETMED
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Influence of soil tillage technology on tillage erosionOriginal PaperJaroslav Korba, Pavel Bro¾, Josef Hùla, Petr Novák, Václav NovákRes. Agr. Eng., 2024, 70(2):104-110 | DOI: 10.17221/64/2023-RAE
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Decomposition of variations of direct payments rates on the example of selected support instruments applied in PolandOriginal PaperAdrian Sad³owskiAgric. Econ. - Czech, 2023, 69(2):55-67 | DOI: 10.17221/285/2022-AGRICECON
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Recent development of economic indicators on Czech dairy farmsOriginal PaperJan Syrùèek, Ludìk Bartoò, Dalibor Øehák, Magdaléna ©tolcová, Jiøí BurdychAgric. Econ. - Czech, 2023, 69(2):45-54 | DOI: 10.17221/381/2022-AGRICECON
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Effects of apoptosis by 20α-hydroxysteroid dehydrogenase activity on corpus luteum formation during early pregnancy in cattleOriginal PaperJi-Hye Lee, Seok-Hyun Cho, Sang-Hwan KimCzech J. Anim. Sci., 2023, 68(2):53-63 | DOI: 10.17221/116/2022-CJAS
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Low-density lipoprotein supplementation improves the quality of Holstein bulls’ insemination dosesOriginal PaperJan Pytlík, Radim Codl, Jaromír Ducháèek, Filipp Georgijeviè Savvulidi, Marek Vrhel, Ludìk StádníkCzech J. Anim. Sci., 2023, 68(2):64-71 | DOI: 10.17221/223/2022-CJAS
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Effect of Broussonetia papyrifera leaf meal on growth performance, antioxidant capacity, and gut health status of growing rabbitsOriginal PaperKunliang Han, Bang Zhang, Yan CuiCzech J. Anim. Sci., 2023, 68(2):87-97 | DOI: 10.17221/146/2022-CJAS
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Lingual morphology of domesticated Asian small-clawed otters in Yogyakarta, IndonesiaOriginal PaperAK Anjani, GR Saragih, H Wihadmadyatami, DL KusindartaVet Med - Czech, 2023, 68(3):91-105 | DOI: 10.17221/62/2022-VETMED
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Inoculation with Bacillus alters nitrogen uptake and metabolism in roots of Diospyros lotus under wheat straw addition in soilOriginal PaperPeng Zhang, Fengge Hao, Zitan Zhu, Dongmei Lang, Huiling HuPlant Soil Environ., 2023, 69(10):463-470 | DOI: 10.17221/225/2023-PSE
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Whole genome identification of CBF gene families and expression analysis in Vitis vinifera L.Original PaperXiang Fang, Yiling Lin, Chun Chen, Tariq Pervaiz, Xicheng Wang, Hefei Luo, Jinggui Fang, Lingfei ShangguanCzech J. Genet. Plant Breed., 2023, 59(3):119-132 | DOI: 10.17221/82/2022-CJGPB The CBF (C-repeat binding factors) genes play important roles in response to abiotic stress and environmental changes. In the present study, a total of 18 CBF genes were identified from a grapevine. Their domains, phylogenetics, and collinearity were analysed. The results revealed, that 18 VviCBF genes were distributed on 10 chromosomes unevenly in the grape genome. Promoter data analysis showed that the CBF gene has many cis-acting elements related to plant growth and development, light response, hormone, and abiotic stress response. We found that six VviCBF genes including, VviCBF5, VviCBF13, VviCBF14, VviCBF15, VviCBF16, and VviCBF18 differentially expressed during fruit developmental stages. Furthermore, four VviCBF genes including, VviCBF1, VviCBF3, VviCBF6, and VviCBF11 were expressed at the early stage of bud dormancy, whereas, nine VviCBF genes were expressed at the bud dormancy-breaking stage. Additionally, various VviCBFs genes respond to different abiotic and biotic stress. These findings will lay a foundation for further study of the CBF genes in bud dormancy, downy mildew, and abiotic and biotic stresses. |
Biodiversity of Vitis vinifera endophytes in conventional and biodynamic vineyardOriginal PaperMaria Vrublevskaya, Thi Tra My Nguyenová, Lucie Drábová, Petra Lovecká, Blanka Vrchotová, Olga Ma»átková, Markéta Kuli¹ová, Irena Jaro¹ová KolouchováCzech J. Food Sci., 2023, 41(1):44-53 | DOI: 10.17221/200/2022-CJFS
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Optimising consumer acceptability of Cauca specialty coffee through roasting profiles on acidity and body sensory attributesOriginal PaperDiego Andrés Campo-Ceballos, Carlos Alberto Gaviria-LópezCzech J. Food Sci., 2023, 41(1):64-72 | DOI: 10.17221/181/2022-CJFS The roasting coffee process is the compilation of time-temperature-dependent physical and chemical transformations induced by heat. Through the study of the time-temperature curve, the correct definition of the degree of roasting of coffee is an area of active and non-trivial research, which intervenes in obtaining consistent roasting profiles reflected in the acceptability of the drink perceived by consumers. This paper used the methodology of response surfaces (RSM) with the central composite design (CCD). A consumer study was conducted with 104 individuals, each tasting 13 cups of specialty coffee from Cauca-Colombia. Predictive equations for acidity and body perception were obtained. The roasting profile points in charge, turning point, yellow, brown, first crack, and drop step were included. Mathematical models predict the acidity and body perceptions by integrating the roasting profile points characteristics of coffee. The Cauca coffee beans produced using the optimied conditions contribute to obtaining a roasting time/temperature of 468 s at 192 °C, respectively, with acidity (9/15) and body (5.5/15) in the (0–15) intensity consumer's perception scale. |
Common bean (Phaseolus vulgaris L.) seed germination improves the essential amino acid profile, flavonoid content and expansion indexShort CommunicationLuis Díaz-Batalla, Karina Aguilar-Arteaga, Javier Castro-Rosas, Reyna Nallely Falfán-Cortés, Ricardo Omar Navarro-Cortez, Carlos Alberto Gómez-AldapaCzech J. Food Sci., 2023, 41(1):73-77 | DOI: 10.17221/5/2022-CJFS Common bean (Phaseolus vulgaris L.) is one of the most important grain legume foods for the human diet. Common bean seed is gaining attention due to its content of secondary metabolites with positive effects on human health. The present work analysed the effect of common bean germination on the essential amino acid profile, active compound content, and expansion index after extrusion processing. The content of tryptophan (Trp) in raw common bean (RCB) and in germinated common bean (GCB) seeds was 6.1 and 7.9 mg·g–1 of protein, respectively. The limiting amino acids in RCB were sulphur amino acids and Trp, and in GCB only the sulphur amino acids were the limiting amino acids. The germination process in beans increases the levels of quercetin and kaempferol and allows the synthesis of daidzein and genistein, and significantly increases the expansion index after extrusion processing. The germination of common bean could be used as a strategy to improve nutritional, nutraceutical, and processing properties. |
Gene effects for begomovirus resistance and plant architecture attributes in pumpkin (Cucurbita moschata Duchesne)Original PaperNeha Verma, Karmvir Singh Garcha, Madhu Sharma, Abhishek Sharma, Ajmer Singh DhattCzech J. Genet. Plant Breed., 2023, 59(2):67-75 | DOI: 10.17221/56/2022-CJGPB Knowledge of gene actions governing begomovirus resistance and plant architectural traits is a prerequisite for a successful hybrid breeding programme. Therefore, the gene actions associated with these traits were studied in two intervarietal crosses of Cucurbita moschata (C1: Punjab Nawab × MVSR-6711 and C2: Punjab Nawab × P-135). We used the generation mean analysis of six generations for this purpose. Significant differences between the generation means were observed for all the traits in both crosses. The parental lines differed significantly in most of the studied traits. The nature and magnitude of the gene effects of seventeen traits varied by trait and cross. A simple additive dominance model was adequate for the internode number, leaf length and width, petiole length, fruit weight and cavity diameter in C1 and the number of fruits/plant in C2. The non-allelic interaction was found to be significant for a majority of the traits including the per cent disease index of the squash leaf curl China virus, tomato leaf curl New Delhi virus and their mixed infections, which indicated, that recurrent selection in biparental progeny might be useful for the accumulation of genes with additive effects. Duplicate epistasis was observed for the vine, internodal and peduncle length in C1 and the internode number, petiole and peduncle length, peduncle and fruit polar diameter in C2. This information will help to establish a breeding program for the simultaneous improvement of virus resistance and yield traits in pumpkins. |
Citalopram in vitro metabolism in a beagle dog: A role for CYP2D15 in the production of toxic didesmethylcitalopram?Original PaperB Rochat, E Paus, C Maitre, P BaumannVet Med - Czech, 2023, 68(4):135-144 | DOI: 10.17221/65/2022-VETMED After administration of the serotonergic antidepressant citalopram (CIT) to beagle dogs, they may experience severe convulsive attacks in relation with considerably higher plasma concentrations of the metabolite didesmethyl-CIT (DDCIT), when compared to those in humans medicated with CIT. This pilot study aimed at determining the role of cytochrome P-450 (CYP450) isozymes in the in vitro metabolism of CIT to desmethyl-CIT (DCIT), and of DCIT to DDCIT in the liver microsomes of a single beagle dog. The incubations with racemic CIT or DCIT reveal a high affinity enzyme with Km between 0.3 µM and 1.4 µM for S- and R-DCIT and S- and R-DDCIT productions, respectively. In comparison to human enzymes, the intrinsic clearance values of this high affinity enzyme are between 15 µL/(min x mg of protein) and 52 µL/(min x mg of protein), i.e. very high. In vitro experiments with inhibitors suggest that CYP2D15, which shows analogy with human CYP2D6, is by far the main CYP450 isozyme involved in the production of DCIT and DDCIT whereas CYP3A12 and CYP2C21/41 showed a weak implication. These observations partly explain why in humans, plasma concentrations of the toxic DDCIT are considerably lower than those observed in dogs, after administration of CIT. |
Vermiliquer as a biostimulant and antioxidant in hydroponic lettuce (Lactuca sativa) productionOriginal PaperAdrian Esteban Ortega-Torres, Tomás Sabino Herrera-Matallana, Enrique Rico-GarcíaHort. Sci. (Prague), 2023, 50(1):25-31 | DOI: 10.17221/5/2022-HORTSCI The use of vermiliquers obtained from earthworm in hydroponic crops is well received as alternative for fertilization of leafy vegetables. The vermiliquer boosts growth, defense compounds and increases the uptake of nutrients and minerals by plants. The growth and enzymatic activities related to stress and phenolic compounds were explored in hydroponic lettuce crops treated with different concentrations of vermiliquer. The treatments consisted in three different vermiliquer, a Mesh Vermiwash, a Direct Vermiwash, and the Vermileachate, and its combinations as a complement for complete fertilization. The addition of vermiliquer to hydroponic lettuce affected the leaf and root fresh weight, and reactive oxygen species like superoxide dismutase (SOD) or phenylalanine ammonia-lyase (PAL). Vermileachate (Vl) plus Direct Vermiwash treatment was higher in the first week in leaf and root lettuce, indicating an effect biostimulant. Vl gave the highest enzymatic activity in SOD and PAL, indicating an effect elicitor. In summary, vermiwash proved to improve hydroponic lettuce crop and enzymatic activities related to stress. |
Effects of saline water and N levels on eggplant (Solanum melongena L.) fruit yield, water productivity, and nitrogen use efficiency by drip and surface flood irrigationOriginal PaperSeema, Rita Dahiya, Ram Prakash, Vijay Pal Singh Panghal, Manoj Kumar GoraHort. Sci. (Prague), 2023, 50(1):32-44 | DOI: 10.17221/11/2022-HORTSCI Due to a scarcity of freshwater resources, agriculture is dependent on the use of poor quality water for irrigation in arid and semi-arid regions. Hence, the effective use of poor quality water requires pioneering water management and nitrogen fertilizer practices for increasing yield and resource efficiency. This study aimed to investigate the effect of saline water levels, nitrogen fertilizer, and irrigation methods on eggplant yield, water productivity, NPK uptake, and nitrogen use efficiency. The experiment was conducted in 2019 and 2020 under drip (IM1) and surface flood irrigation (IM2). The treatments included three saline water levels i.e. canal water (SW1), ECiw=2.5 dS/m (SW2), and ECiw=5.0 dS/m (SW3) along with the three nitrogen levels of 75% (N1), 100% (N2), and 125% (N3) of the recommended dose of nitrogen. Application of saline water using IM1 reduced the ECe by 41.8% (SW2) and 34% (SW3) over IM2. The fruit yield, water productivity (WP), NPK uptake, and nitrogen use efficiency (NUE) was increased by 22%, 127.6%, 39.8%, 16.6%, 11.8%, and 23.8% under IM1 over IM2, respectively. A high saline water level under IM2 can cause more reduction in fruit yield, NPK uptake, and water use. Applying saline water through IM1 improves fruit yield, WP, and NUE by 13-32.8%, 104.1-147.3%, and 10.5-35.2% as compared to IM2. We found that saline water and N applied by drip improved eggplant yield, water productivity, and NPK uptake. It is concluded that irrigation water and nitrogen fertilizer consumption are optimized when saline water is applied through drip irrigation. |
Legume crops use a phosphorus-mobilising strategy to adapt to low plant-available phosphorus in acidic soil in southwest ChinaOriginal PaperMei Chen, Xin Luo, Long Jiang, Rui Dong, Siddique K.H.M., Jin HePlant Soil Environ., 2023, 69(10):471-479 | DOI: 10.17221/254/2023-PSE Phosphorus (P) deficiency significantly affects crop productivity, especially legume crops. Therefore, it is important to understand the P-acquisition strategies of different leguminous crops. In this study, we undertook a pot experiment with 11 legume crops (soybean, faba bean, pea, cowpea, common bean, lentil, adzuki bean, chickpea, grass pea, red kidney bean and common vetch) to investigate P-acquisition strategies related to root morphology, organic acid and acid phosphatase exudations, and arbuscular mycorrhizal fungi (AMF) colonisation under low (4.4 mg/kg) and optimal (40 mg/kg) P conditions. The results revealed that P deficiency significantly decreased biomass and P accumulation, root length (10.5%), and root surface area (7.9%), increased organic acid exudation (80.2%) and acid phosphatase activity (16.8%), and did not affect root diameter or root AMF colonisation rate. Principal component analysis revealed a positive correlation between organic acid exudation and acid phosphatase activity, while root length and root surface area negatively correlated with organic acid exudation, acid phosphatase activity and root AMF colonisation rate. P accumulation positively correlated with root length, surface area, and diameter but negatively correlated with organic acid exudation, acid phosphatase activity, and AMF colonisation rate. These findings confirmed the following: (1) legume crops use a P-mobilisation strategy related to organic acid exudation and acid phosphatase activity to acquire P under low soil P conditions; (2) organic acid exudation coincided with acid phosphatase activity to mobilise soil inorganic and organic P, improving P accumulation; (3) a trade-off exists between the P-scavenging strategy related to root morphology traits and mobilisation strategy. |
