scholarly journals Can Grazing Moderate Climatic Effects on Herbage Nutritional Quality?

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 700
Author(s):  
Guy Dovrat ◽  
Efrat Sheffer ◽  
Serge Yan Landau ◽  
Tova Deutch ◽  
Haim Gorelik ◽  
...  
Keyword(s):  
Nutritional Quality ◽  
Grazing Intensity ◽  
Quality Parameters ◽  
Climatic Conditions ◽  
Interactive Effects ◽  
Temperate Climate ◽  
Climate Variables ◽  
Climatic Effects ◽  
Herbage Quality

In Mediterranean grasslands, the composition of vegetation and its nutritional quality for animals are strongly affected by the climatic conditions prevailing during winter and spring. Therefore, these seasonal ecosystems provide an opportunity to examine how variability in climatic conditions affects the regeneration and quality of pasture vegetation. The intensity of grazing in this seasonal system can moderate, or alternatively exacerbate, climatic effects on the nutritional quality of the vegetation. Herein, we analyzed the interactive effects of climate variables, grazing intensity, and grazing exclusion on herbage quality parameters using long-term vegetation and climate data collected during 2005–2018 from an extensive experiment in Galilee, Israel. We evaluated the contribution of different climate variables to the prediction of herbage quality parameters. Our results showed that climate variables have a dramatic effect on herbage quality and that this effect interacts with grazing intensity. Herbage quality improved in temperate rainy years compared to warm and dry years. High grazing intensity improved herbage quality under temperate climate conditions, but this effect was moderated or completely disappeared as winter conditions become warmer and drier. The results of the study foresee negative effects of warming and drying on the carrying capacity of natural pastures.

scholarly journals Rootstock Effect on Physico-Chemical and Nutritional Quality of Mandarin ‘Clemenules’ during the Harvest Season

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1350 ◽  
Author(s):  
Julia Morales ◽  
Almudena Bermejo ◽  
Pilar Navarro ◽  
Alejandra Salvador
Keyword(s):  
Acid Content ◽  
Nutritional Quality ◽  
Color Change ◽  
Quality Parameters ◽  
Maturity Indices ◽  
Physico Chemical ◽  
Fruit Maturity ◽  
Different Seasons ◽  
Citric Acid Content

This study reports the influence of eight rootstocks (‘Carrizo’ (CC), ‘C-35’ (C35) ‘Cleopatra’ (CL), ‘Volkameriana’ (VK), ‘Macrophylla’ (M), ‘Forner-Alcaide 5’ (FA5), ‘Forner-Alcaide 13’ (FA13) and ‘Forner-Alcaide V17’ (V17)) on the physico-chemical and nutritional quality of ‘Clemenules’ mandarins at three harvest times during two seasons. Fruit quality parameters were influenced by rootstocks, and this effect was mostly harvest time -dependent. External color was overall influenced by rootstocks upon the first harvest. FA13 and C35 induced a breakthrough in color change, while V17 brought about the greatest color increase. CL and V17 initially delayed the fruit maturity index. In the last harvest, while CL had one of the highest maturity indices, V17 exhibited the lowest as acidity was maintained as harvest advanced. The CC and M fruit had the highest and lowest sucrose content, respectively. The highest glucose and fructose contents in fruit were induced by V17, FA5 and CC. The highest citric acid content was displayed by V17 in all the harvests. The FA13, C35 and VK fruit exhibited the highest malic acid content. The effect that rootstock exert on ascorbic acid and flavonoid content depends on the studied season. The results reveal the importance of conducting studies during different seasons to obtain robust results.

Effect of surface applied glycine betaine on herbage production and quality of perennial ryegrass - white clover pastures

2008 ◽  
Vol 48 (5) ◽  
pp. 687 ◽  
Author(s):  
J. M. Lee ◽  
K. Elborough ◽  
W. D. Catto ◽  
D. J. Donaghy ◽  
J. R. Roche
Keyword(s):  
Perennial Ryegrass ◽  
White Clover ◽  
Glycine Betaine ◽  
Moisture Stress ◽  
Quality Parameters ◽  
Plant Tolerance ◽  
Cold Temperatures ◽  
Herbage Quality ◽  
Effect Of Surface

Osmoprotectants have been reported to reduce the detrimental effects of various environmental stresses in many different plant species. However, there is little research available concerning pasture species. Two experiments were undertaken with the aim of quantifying the effect of surface applications of exogenous glycine betaine (GB) on herbage production and quality of perennial ryegrass (Lolium perenne L.)–white clover (Trifolium repens L.) pastures during periods of moisture stress and cold temperatures over 2 years. Pastures fertilised with GB were compared with unfertilised pastures and pastures fertilised with nitrogen (N). Rates of 0.5, 1.0 and 1.5 kg GB/ha.defoliation were applied in experiment 1 and 5 kg GB/ha.defoliation was applied in experiment 2. Surface applications of GB did not significantly affect herbage production relative to unfertilised pastures; herbage yields averaged 12 248 and 12 693 kg DM/ha over 11 months in experiment 1, and 7253 and 7177 kg DM/ha over 6 months during summer and autumn in experiment 2, for the unfertilised control and GB, respectively. During both experiments, herbage quality parameters were not affected by GB application, although the proportion of white clover in the sward between summer and winter during experiment 1 was greater (P < 0.01) in plots treated with GB than in untreated plots. Application of N fertiliser increased (P < 0.001) herbage production, but did not consistently affect herbage quality. The failure of surface applications of exogenous GB to improve the herbage production or quality of perennial ryegrass–white clover pastures suggests that it is not an appropriate method to enhance plant tolerance to environmental stress at the concentrations applied in these studies.

scholarly journals Influence of storage on the chemical composition of Stylosanthes hays for equine feeding

2016 ◽  
Vol 37 (2) ◽  
pp. 819 ◽  
Author(s):  
Diego Figueiredo da Costa ◽  
Aline Ferreira da Silva ◽  
Areano Ethério Moreira de Farias ◽  
Arthur Willian de Lima Brasil ◽  
Fabrine Alexandre dos Santos ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Nutritional Quality ◽  
Nutritional Value ◽  
Storage Period ◽  
Climatic Conditions ◽  
Stylosanthes Guianensis ◽  
Split Plot ◽  
Dry Seasons ◽  
Plot Design

During dry seasons, equines are traditionally fed hay. However, if not prepared under favorable climatic conditions and if not properly stored, hay does not preserve its nutritional value. The aim of this research was to evaluate the chemical composition in Stylosanthes guianensis cv. Mineirão and Estilosantes Campo Grande hay varieties, used to feed equines over 225 days of storage. Treatments consisted of Stylosanthes guianensis cv. Mineirão and Estilosantes Campo Grande hay varieties, assessed at six moments of storage: 0, 45, 90, 135, 180, and 225 days. The experiment followed a completely randomized split-plot design. In the comparison between varieties, differences (P0.05) over the 225 days of storage. The storage period had little impact on the nutritional quality of the assessed hays. The Stylosanthes guianensis cv. Mineirão and, mainly, Estilosantes Campo Grande hay varieties have potential to be used in equine diet.

scholarly journals Nitrogen and Zinc Interaction Improves Yield and Quality of Submerged Basmati Rice (Oryza sativa L.)

2014 ◽  
Vol 42 (2) ◽  
pp. 372-379 ◽  
Author(s):  
Hakoomat ALI ◽  
Zuhair HASNAIN ◽  
Ahmad Naeem SHAHZAD ◽  
Naeem SARWAR ◽  
Muhammad K. QURESHI ◽  
...  
Keyword(s):  
Grain Yield ◽  
Calcareous Soils ◽  
Soil Nutrient ◽  
Quality Parameters ◽  
Interactive Effects ◽  
Basmati Rice ◽  
Limiting Factors ◽  
Yield Attributes ◽  
Yield And Quality

Nitrogen (N) and zinc (Zn) are the two major yield-limiting factors of flooded rice cultivation systems. Both nutrients interact and affect availability of the other in alkaline calcareous soils. In order to evaluate the interactive effects of N and Zn on yield and quality of Basmati rice, a field study was conducted at Sheikhupura (Site I) and Sargodha (Site II), Pakistan. Nitrogen treatments (0, 40, 80, 120 and 160 kg/ha) were kept in main blocks while zinc levels (0, 8, 10, 12 and 14 kg/ha) were kept in sub blocks. The main effects of N and Zn levels were significant for grain yield and yield attributes. N and Zn interaction significantly improved the grain yield, yield components and all kernel quality parameters, except kernel amylose contents. Combined application of 120 kg N/ha and 14 kg Zn/ha produced the maximum grain yields at both sites (6.12 and 5.78 t/ha). This combination also yielded the maximum kernel lengths and widths, water absorption ratio and kernel protein contents. There was a significant positive correlation between grain yield and total dry matter, panicle-bearing tillers, spikelets panicle, grain weight, and harvest index. Application of 160 kg N/ha was detrimental to yield and quality attributes and reduced the agronomic efficiency of N use at both sites. Site comparison showed that soil pH and soil nutrient contents play a significant role in determination of the optimum nitrogen and zinc fertilizer doses for maximum yields.

scholarly journals Evaluation and grading of climatic conditions on nutritional quality of rice: A case study of Xiaozhan rice in Tianjin

2021 ◽  
Vol 28 (4) ◽  
Author(s):  
Sining Chen ◽  
Jun Guo ◽  
Yanxia Zhao ◽  
Xingyang Li ◽  
Fang Liu ◽  
...  
Keyword(s):  
Nutritional Quality ◽  
Climatic Conditions

scholarly journals NUTRITIONAL AND ROTI QUALITY OF SORGHUM GENOTYPES

2016 ◽  
Vol 10 (2) ◽  
pp. 80
Author(s):  
U.D. Chavan ◽  
J.V. Patil ◽  
M.S. Shinde
Keyword(s):  
Nutritional Quality ◽  
Quality Parameters ◽  
Breeding Program ◽  
Organoleptic Evaluation ◽  
Land Races ◽  
Overall Acceptability ◽  
Grain Color ◽  
Improved Cultivars ◽  
White Grain

Sorghum grains are mostly used for the roti preparation. The M 35-1 (Maldhandi) a sorghum cultivar is known for its good quality of roti due to having pearly white grain color, its flour having higher water holding capacity, and good organoleptic taste. However, this cultivar is low yielder. To evolve sorghum high yielding genotype coupled with this good roti qualities, systematic breeding program was planned and executed to overcome this problem. Twenty local land races, 92 genotypes, and seven improved cultivars of sorghum along with check M 35-1 were studied for various nutritional quality parameters, with special reference to the roti quality. Considering nutritional quality and organoleptic evaluation parameters studied for roti quality, the local land races viz., RSLG 428-1, RSLG 1238, RSLG 1275 and the genotypes viz., RSV 290, RSV 292, RSV 858, RSV 859, RSV 861, RSV 868, RSV 894, RSV 985, RSV 992, RSV 995, RSV 999 were found to be promising for protein, sugar, water absorption, and soluble protein content. Therefore, they can be used for further improvement in nutritional quality through breeding program. Among the improved cultivars, Phule Vasudha (RSV 423), CSV 22, and Phule Chitra (SPV 1546) were<br />found to be most promising for roti quality. The maximum score for overall acceptability was found for Phule Vasudha followed by Phule Anuradha (RSV 458), Phule Yeshoda (RSLG 262), and Phule Maulee (CSV 216).

scholarly journals Effect of Insecticidal Atmospheres at High Temperature Combined with Short Cold-quarantine Treatment on Quality of ‘Valencia’ Oranges

HortScience ◽  
2010 ◽  
Vol 45 (10) ◽  
pp. 1496-1500 ◽  
Author(s):  
Adriana Contreras-Oliva ◽  
Cristina Rojas-Argudo ◽  
María B. Pérez-Gago
Keyword(s):  
High Temperature ◽  
Nutritional Quality ◽  
Sensory Quality ◽  
Ceratitis Capitata ◽  
Fruit Fly ◽  
Quality Parameters ◽  
Negative Effects ◽  
Valencia Orange ◽  
And Control

The combination of insecticidal atmosphere (IA) with short cold exposure periods has been effective in controlling the Mediterranean fruit fly, Ceratitis capitata (Wiedemann). In the present work, ‘Valencia’ orange quality was assessed on fruit exposed to IA (95% CO2) at 23, 28, or 33 °C for 20 h; next stored at 1 °C for 8, 16, or 24 days; and then kept at 20 °C for 7 days to simulate shelf life. Physicochemical, sensory, and nutritional quality parameters were analyzed on treated and control (air-exposed) fruit. No significant negative effects on fruit quality were observed in IA-treated ‘Valencia’ oranges. In addition, the exposure of oranges to 95% CO2 at 28 °C reduced the weight and firmness loss compared with fruit kept in air. Ethanol content increased in the fruits exposed to 95% CO2 at 28 or 33 °C, but sensory quality was not adversely affected.

scholarly journals Effect Of Temperature And Storage Time On The Nutritional Quality Of Olive Drupes: A Case Study

2020 ◽  
Vol 2 (4) ◽  
Author(s):  
Enrico Finotti ◽  
Loretta Gambelli ◽  
Gioia Meysem Mili ◽  
Gabrielle Lo Feudo ◽  
Cinzia Benincasa ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Sensory Analysis ◽  
Nutritional Quality ◽  
Storage Time ◽  
Quality Parameters ◽  
Effect Of Temperature ◽  
Different Temperatures ◽  
And Storage

In this study we evaluated the effect of temperature and time storage on the quality parameters of mono cultivar olive oil drupes. In particular, analyses of total free phenols, fatty acids, lipophilic and hydrophilic antioxidant capacity, sensory analysis, at different temperatures and different times of post harvest storage, were performed. All data obtained have been singularly processed by Functional Mathematical Index (FMI).

scholarly journals How Irrigation Water Affects the Yield and Nutritional Quality of Maize (Zea mays L.) in a Temperate Climate

2018 ◽  
Vol 27 (3) ◽  
pp. 1123-1131 ◽  
Author(s):  
Branka Kresović ◽  
Boško Gajić ◽  
Angelina Tapanarova ◽  
Goran Dugalić
Keyword(s):  
Zea Mays ◽  
Irrigation Water ◽  
Nutritional Quality ◽  
Zea Mays L ◽  
Temperate Climate

scholarly journals Effect of Boron on Nutritional Quality of Groundnut Grown in Coastal Sandy Soils

2021 ◽  
pp. 189-197
Author(s):  
K. M. Haneena ◽  
P. Venkata Subbaiah ◽  
Ch. Sujani Rao ◽  
K. Srinivasulu
Keyword(s):  
Nutritional Quality ◽  
Block Design ◽  
Sandy Soils ◽  
Quality Parameters ◽  
Groundnut Oil ◽  
Constant Weight ◽  
Plant Samples ◽  
Randomized Block Design ◽  
Micronutrient Uptake

Aim: To study the effect of boron on quality parameters and micronutrient uptake of groundnut in coastal sandy soils. Study Design: The experiment laid out in randomized block design with three replications. Place of Study: At College Farm, Agricultural College, Bapatla, Guntur. Methodology: After the preliminary layout, the TAG-24 variety of groundnut was used as a test crop, with a spacing of 30 cm x 10 cm in the experimental site. Plant samples were collected at 45, 90 DAS, and harvest. Plant samples were shade dried and kept in hot air oven at 75°C until a constant weight was obtained. Samples were powdered and then analysed for micronutrients using standard chemical procedures. Results: Protein content, boron content and uptake of micronutrients viz., iron, zinc, manganese, copper and boron were significantly improved with the application of boron in groundnut. Oil content and oil yield were not significantly influenced by the application of boron. The highest value of all these parameters were recorded in T4 (RDF + soil application of Borax @ 12.5 kg/ha). Conclusion: Application of boron along with RDF improved the nutritional quality of groundnut in coastal sandy soils.

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