Mineral contents of forage pea – triticale intercropping systems harvested at different growth stages

2018 ◽  
Author(s):  
Ozlem Onal Asci ◽  
Zeki Acar ◽  
Yeliz Kasko Ariciy
Keyword(s):  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Quality Parameters ◽  
First Year ◽  
Growth Stages ◽  
Mineral Contents ◽  
Mixture Ratio ◽  
Boot Stage ◽  
Pisum Sativum L ◽  
Different Growth Stages

This study was conducted to determine the effects of mixture ratios and harvest times on mineral contents of forage pea – triticale mixtures hay. Leafed and semi-leafless pea (Pisum sativum L.) cultivars and triticale (xTriticosecale Wittmack) were sown in pure and in mixtures (75:25, 50:50, 25:75). Harvests were performed at boot and milk-dough stages of triticale. Experiments were conducted in randomized blocks design with 3 replications for 2 years. The data were subjected to ANOVA. Additionally, Pearson correlation coefficients were calculated between triticale ratios and quality parameters. 1n the first year at both harvest times of all mixtures; while Ca, Mg and Ca/P ratios decreased with increasing triticale ratios in mixture, K/(Ca+Mg) ratio increased with increasing triticale ratios in mixture ratio. Herbage mineral contents decreased with delaying harvest. It was concluded based on animal nutrition principles that triticale ratios of the mixtures should be limited and harvest should be performed at boot stage of triticale.

Quantifying Internal Load in Pre-Professional Contemporary Dancers: The Association Between Objective Heart-Rate Derived Outcome Measures and Subjective Dancers’ and Teachers’ Perceptions

2021 ◽  
Author(s):  
Janine H. Stubbe ◽  
Benjamin Soerel ◽  
Raôul Oudejans ◽  
Jolan Kegelaers ◽  
Rogier M. van Rijn
Keyword(s):  
Heart Rate ◽  
Perceived Exertion ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
First Year ◽  
Contemporary Dance ◽  
Teachers Perceptions ◽  
Non Invasive ◽  
Subjective Perceptions ◽  
Training Impulse

Background: Monitoring heart rate is one of the most common methods used to quantify internal training load (ITL) in athletes. The aim of this study was to determine whether subjective measurements can be used as a simple, non-invasive, and inexpensive method for assessing ITL in pre-professional contemporary dancers.Method: A total of 16 first-year contemporary dance students participated in this study. Students wore heart rate monitors during 56 training sessions. After each session, students completed the rate of perceived exertion (RPE) scale and teachers completed the rate of observed exertion (ROE) scale. For each session, we calculated the session-RPEs (sRPE), session-ROEs (sROE), and heart-rate-derived ITLs [i.e., Banister TRaining IMPulse method (TRIMP) and Edwards TRIMP]. Pearson correlation coefficients were calculated to determine the association between sRPE, sROE, Banister TRIMP, and Edwards TRIMP.Results: Between-individual correlation between Banister TRIMP and subjective dancers’ (sRPE) and teachers’ perceptions (sROE) were moderate (r = .49, p < 0.01) to large (r = .57, p < 0.01). Between-individual correlations between Edwards TRIMP and the subjective perceptions (sRPE and sROE) were very large (r = .74, p < 0.01; and r = .79, p < 0.01). There was a statistically significant large (r = 0.52, p < 0.01) to almost perfect (r = 0.93, p < 0.01) within-individual correlation between the sRPE and the two measured TRIMP methods. There was a statistically significant small (r = .29, p < 0.01) to almost perfect (r = .92, p < 0.01) within-individual correlation between the sROE and the two measured TRIMP methods. Conclusion: The results of this study suggest that the sRPE is a simple, non-invasive, inexpensive, and valid method for quantifying ITL in pre-professional dancers.

scholarly journals Water-Yield Relationships in Deficit Irrigated Onion

2019 ◽  
Vol 7 (9) ◽  
pp. 1310
Author(s):  
Serhat Ayas
Keyword(s):  
Block Design ◽  
Maximum Yield ◽  
Quality Parameters ◽  
Water Yield ◽  
First Year ◽  
Growth Stages ◽  
Irrigation Amount ◽  
Yield And Quality ◽  
Second Year ◽  
Irrigation Treatments

This trial was realized in the greenhouses of Uludağ University Yenişehir Vocational School between 2009 and 2010 to investigate effects of water deficit on yield and quality parameters of onion during four crop growth stages. In this trial, fourteen irrigation treatments in four growth periods (establishment, vegetative, yield formation and ripening) of onion (Allium cepa L E.T Grano.502) were constituted and the yield and quality parameters found from these treatments were evaluated. The layout of the experiment was a completely randomized block design with three replications for each of the fourteen irrigation treatments tested. According to the content of the treatments, the irrigation amount water applied to the plants varied between 0 and 436 mm in the first year, and between 0 and 448 mm in the second year. Water consumption of onion in the first year ranged between 205 and 496 mm and in the second year ranged between 210 and 502 mm. Yield, bulb weight, diameter, height and dry matter ratio were determined statistically significant. In 2009 and 2010 years, the maximum yield were found as 52.2 t ha-1 and 52.4 t ha-1 in E100V100Y100R100 treatments, while the minimum yield were found as 0.8 t ha-1 and 0.5 t ha-1 in the E0V0Y0R0 treatments, respectively. Water- yield relationship factors (ky) in 2009 and 2010 years were found as 1.03 and 1.04, respectively. The maximum WUE and IWUE values were obtained from establishment and ripening periods. Establishment and ripening periods may be suggested as the maximum efficient irrigation periods for the onion applied with drip irrigation under unheated greenhouse conditions.

scholarly journals Cd and Zn Concentrations in Soil and Silage Maize following the Addition of P Fertilizer

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2336
Author(s):  
Andrea Giovanna Niño-Savala ◽  
Benedikt Weishaar ◽  
Jürgen Franzaring ◽  
Xuejun Liu ◽  
Andreas Fangmeier
Keyword(s):  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Dilution Effect ◽  
Soil Characteristics ◽  
Development Stage ◽  
Growth Stages ◽  
Cd Uptake ◽  
Silage Maize ◽  
P Fertilizer ◽  
Initial Uptake

Studies of soil Cd and Zn are often performed on sites that are contaminated or have deficient Zn conditions. Soil characteristics and crop management could impact the soil mobility and uptake of Cd and Zn, even when considering unpolluted Cd soils and adequate soil Zn levels. The concentrations of these two metals were assessed in soil and silage maize under five P fertilization treatments at two growth stages under low Cd and sufficient Zn conditions. Pearson correlation coefficients and stepwise linear regressions were calculated to investigate the soil characteristics influencing the bioavailable metal fraction in soil and the metal concentration in silage maize. P treatments did not impact Cd accumulation in maize; however, the Zn uptake was affected by P placement at the leaf development stage. From early development to maturity, the Cd level in maize decreased to 10% of the initial uptake, while the Zn level decreased to 50% of the initial uptake. This reduction in both metals may be attributed to a dilution effect derived from high biomass production. Silage maize could alleviate the initial Cd uptake while diminishing the depressant effect of P fertilizer on Zn concentration. Further research is required to understand the effect of P fertilizer on Cd uptake and its relation to Zn under field conditions at early and mature stages.

scholarly journals Phenotyping of Different Italian Durum Wheat Varieties in Early Growth Stage With the Addition of Pure or Digestate-Activated Biochars

2021 ◽  
Vol 12 ◽  
Author(s):  
Arianna Latini ◽  
Fabio Fiorani ◽  
Patrizia Galeffi ◽  
Cristina Cantale ◽  
Annamaria Bevivino ◽  
...  
Keyword(s):  
Durum Wheat ◽  
Wheat Straw ◽  
Plant Traits ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Dry Weight ◽  
Early Growth ◽  
Basic Knowledge ◽  
Growth Stages ◽  
Wheat Varieties

This study aims to highlight the major effects of biochar incorporation into potting soil substrate on plant growth and performance in early growth stages of five elite Italian varieties of durum wheat (Triticum durum). The biochars used were obtained from two contrasting feedstocks, namely wood chips and wheat straw, by gasification under high temperature conditions, and were applied in a greenhouse experiment either as pure or as nutrient-activated biochar obtained by incubation with digestate. The results of the experiment showed that specific genotypes as well as different treatments with biochar have significant effects on plant response when looking at shoot traits related to growth. The evaluated genotypes could be clustered in two main distinct groups presenting, respectively, significantly increasing (Duilio, Iride, and Saragolla varieties) and decreasing (Marco Aurelio and Grecale varieties) values of projected shoot system area (PSSA), fresh weight (FW), dry weight (DW), and plant water loss by evapotranspiration (ET). All these traits were correlated with Pearson correlation coefficients ranging from 0.74 to 0.98. Concerning the treatment effect, a significant alteration of the mentioned plant traits was observed when applying biochar from wheat straw, characterized by very high electrical conductivity (EC), resulting in a reduction of 34.6% PSSA, 43.2% FW, 66.9% DW, and 36.0% ET, when compared to the control. Interestingly, the application of the same biochar after nutrient spiking with digestate determined about a 15–30% relief from the abovementioned reduction induced by the application of the sole pure wheat straw biochar. Our results reinforce the current basic knowledge available on biological soil amendments as biochar and digestate.

scholarly journals Estimation of Reservoir Bio-Optical Water Quality Parameters Using Smartphone Sensor Apps and Landsat ETM+: Review and Comparative Experimental Results

2018 ◽  
Vol 2018 ◽  
pp. 1-32 ◽  
Author(s):  
Yashon O. Ouma ◽  
J. Waga ◽  
M. Okech ◽  
O. Lavisa ◽  
D. Mbuthia
Keyword(s):  
Water Quality ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Reservoir Water ◽  
Suspended Particulate ◽  
Study Results ◽  
Water Constituents ◽  
Smartphone Sensor

This study presents a comparative evaluation of three real-time imaging-based approaches for the prediction of optically active water constituents as chlorophyll-a (Chl-a), turbidity, suspended particulate matter (SPM), and reservoir water colour. The imaging models comprise of Landsat ETM+-visible and NIR (VNIR) data and EyeOnWater and HydroColor Smartphone sensor apps. To estimate the selected water quality parameters (WQP) from Landsat ETM+-VNIR, predictive models based on empirical relationships were developed. From the in situ measurements and the Landsat regression models, the results from the remote reflectances of ETM+ green, blue, and NIR independently yielded the best fits for the respective predictions of Chl-a, turbidity, and SPM. The concentration of Chl-a was derived from the Landsat ETM+ and HydroColor with respective Pearson correlation coefficients r of 0.8977 and 0.8310. The degree of turbidity was determined from Landsat, EyeOnWater, and HydroColor with respective r values of 0.9628, 0.819, and 0.8405. From the same models, the retrieved SPM was regressed with the laboratory measurements with r value results of 0.6808, 0.7315, and 0.8637, respectively, from Landsat ETM+, EyeOnWater, and HydroColor. The empirical study results showed that the imaging models can be effectively applied in the estimation of the physical WQP.

scholarly journals Sperm chromatin condensation as an in vivo fertility biomarker in bulls: a flow cytometry approach

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Marc Llavanera ◽  
Jordi Ribas-Maynou ◽  
Ariadna Delgado-Bermúdez ◽  
Sandra Recuero ◽  
Rodrigo Muiño ◽  
...  
Keyword(s):  
Flow Cytometry ◽  
Sperm Quality ◽  
Chromatin Condensation ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Quality Parameters ◽  
Sperm Chromatin ◽  
Fertility Rates ◽  
Sperm Chromatin Condensation

Abstract Background Genetic selection in cattle has been directed to increase milk production. This, coupled to the fact that the vast majority of bovine artificial inseminations (AI) are performed using cryopreserved sperm, have led to a reduction of fertility rates over the years. Thus, seeking sensitive and specific sperm biomarkers able to predict fertility rates is of vital importance to improve cattle reproductive efficiency. In humans, sperm chromatin condensation evaluated through chromomycin A3 (CMA3) has recently been purported to be a powerful biomarker for sperm functional status and male infertility. The objectives of the present study were: a) to set up a flow cytometry method for simultaneously evaluating chromatin condensation and sperm viability, and b) to test whether this parameter could be used as a predictor of in vivo fertility in bulls. The study included pools of three independent cryopreserved ejaculates per bull from 25 Holstein males. Reproductive outcomes of each sire were determined by non-return rates, which were used to classify bulls into two groups (highly fertile and subfertile). Results Chromatin condensation status of bovine sperm was evaluated through the combination of CMA3 and Yo-Pro-1 staining and flow cytometry. Sperm quality parameters (morphology, viability, total and progressive motility) were also assessed. Pearson correlation coefficients and ROC curves were calculated to assess their capacity to predict in vivo fertility. Sperm morphology, viability and total motility presented an area under the ROC curve (AUC) of 0.54, 0.64 and 0.68, respectively (P > 0.05), and thus were not able to discriminate between fertile and subfertile individuals. Alternatively, while the percentage of progressively motile sperm showed a significant predictive value, with an AUC of 0.73 (P = 0.05), CMA3/Yo-Pro-1 staining even depicted superior results for the prediction of in vivo fertility in bulls. Specifically, the percentage of viable sperm with poor chromatin condensation showed better accuracy and precision to predict in vivo fertility, with an AUC of 0.78 (P = 0.02). Conclusions Chromatin condensation evaluated through CMA3/Yo-Pro-1 and flow cytometry is defined here as a more powerful tool than conventional sperm parameters to predict bull in vivo fertility, with a potential ability to maximising the efficiency of dairy breeding industry.

scholarly journals Water-Yield Relationships of Deficit Irrigated Pepper (Capsicum Annuum L. Demre)

2019 ◽  
Vol 7 (9) ◽  
pp. 1328
Author(s):  
Serhat Ayas
Keyword(s):  
Capsicum Annuum ◽  
Maximum Yield ◽  
Quality Parameters ◽  
Water Yield ◽  
First Year ◽  
Growth Stages ◽  
Capsicum Annuum L ◽  
Yield And Quality ◽  
Second Year ◽  
Irrigation Treatments

This trial was realized in the greenhouses of Uludag University Yenisehir Vocational School between 2009 and 2010 to investigate effects of water deficit on yield and quality parameters of pepper during four crop growth stages. In this study, fourteen irrigation treatments in four growth periods (vegetative, flowering, yield formation and ripening) of pepper (Capsicum annuum l. Demre) were constituted and the yield and quality parameters found from these treatments were evaluated. The layout of the experiment was a completely randomized block design with three replications for each of the fourteen irrigation treatments tested. According to the content of the treatments, the irrigation amount water applied to the plants varied between 0 and 744 mm in the first year, and between 0 and 750 mm in the second year. Water consumption of pepper in the first year ranged between 320 and 760 mm and in the second year ranged between 330 and 770 mm. Yield, fruit weight, diameter, length and dry matter ratio were determined statistically significant. In 2009 and 2010 years, the maximum yield were found as 26.2 t ha-1 and 27.8 t ha-1 in V100F100Y100R100 treatments, while the minimum yield were found as 0.2 t ha-1 and 0.3 ha-1 in the V0F0Y0R0 treatments, respectively. Water- yield relationship factors (ky) in 2009 and 2010 years were found as 1.29 and 1.24, respectively. The maximum WUE and IWUE values were obtained from vegetative and ripening periods. Vegetative and ripening periods may be suggested as the maximum efficient irrigation periods for the pepper applied with drip irrigation under unheated greenhouse conditions.

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