scholarly journals Nitrogen doses and splitting in top dressing in the production, quality, and macronutrients content in zucchini (Cucurbita pepo) seeds

2021 ◽  
Vol 10 (10) ◽  
pp. e328101018708
Author(s):  
Ana Emília Barbosa Tavares ◽  
Natália de Brito Lima Lanna ◽  
Lidiane Fernandes Colombari ◽  
Emanuele Possas de Souza ◽  
Bruno Novaes Menezes Martins ◽  
...  

Despite the importance of the nutrients, mainly nitrogen, in the formation and chemical composition of the seeds, little research has been done to verify the relationship between the nutrients supplied to the plants and the quality of the seeds produced. The objective of this study was to evaluate the influence of nitrogen doses and splitting on yield, quality and macronutrients content in zucchini seeds. Two experiments (crop 2014 and crop 2015) were installed, with thirteen treatments in the factorial scheme 4x3+1, with four nitrogen doses in top dressing (62.5; 125.0; 187.5; 250.0 kg ha-1), three splitting (1/6+1/3+1/2; 1/4+1/2+1/4; 1/3+1/3+1/3 of total dose in each split), and one treatment without N fertilization in top dressing (dose 0), with four replications. Seed production and quality and macronutrient content in seeds were evaluated. There wasn’t significant effect on number of fruits and seeds produced per plant. However, in crop 2014 the higher the doses of N in top dressing, the higher the seed weight per fruit and per plant, the weight of 100 seeds and the vigor (first count in germination test). In crop 2015, seeds with the best quality (germination and first counting) were obtained in the 1/4+1/2+1/4 splitting. The decreasing order of the macronutrient content in the seeds was N>P>K>Mg>S>Ca.

Foods ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1552
Author(s):  
Iina Jokinen ◽  
Juha-Matti Pihlava ◽  
Anna Puganen ◽  
Tuula Sontag-Strohm ◽  
Kaisa M. Linderborg ◽  
...  

The aim of this study was to determine whether the properties of the native oat grain or non-heat-treated groats (laboratory-scale dehulling) can be used to predict the quality of the industrially produced oat flour produced from heat-treated groats. Quality properties such as the color, hectoliter weight, thousand seed weight and hull content of Finnish native grains (n = 30) were determined. Furthermore, the relationship between the properties of the native grains and the chemical composition of the raw oat materials before and after the milling process were studied. A significant relationship (p < 0.01) was observed between the thousand seed weight of the native oat groats and the chemical composition of the industrially produced oat flour. Furthermore, the protein content of the native grains measured by NIT correlated with the chemical composition of the oat flours. These results suggest that the properties of oat flour produced on an industrial scale, including heat treatment, could be predicted based on the properties of native oat grains.


2017 ◽  
Vol 47 (2) ◽  
Author(s):  
Vitória Regina Takeuchi Fernandes ◽  
Maria Luiza Rodrigues de Souza ◽  
Eliane Gasparino ◽  
Marcos Eduardo Coutinho ◽  
Jesuí Vergílio Visentainer ◽  
...  

ABSTRACT: This study evaluated the yield, color, and chemical composition of commercial cuts (tail, sirloin cut, back fillet, and thigh) of Pantanal caiman meat in both sexes. The yield of tail was higher than other cuts, and the yield of females (17.0%) was higher than males (15.9%). The thigh of males had lower protein content (20.8%) compared with other cuts. Females showed a higher lipid content in the tail (2.4%) and thigh (0.8%) compared with males (1.7% and 0.4%, respectively). The tail presented the greatest content of monounsaturated fatty acids (45.2%) and higher n6/n3 ratio (4.6). Although lightness was not different among cuts or between sexes, there were differences in color. Males have more yellowish meat compared with females. Thigh and back fillet were more reddish when compared to sirloin cut and tail, regardless of sex. In conclusion, female tail meat provided greater yield and lipid content than males, and this result was statistically significant. These findings can help producers and consumers alike, better understand yield, quality, and nutritional quality of Pantanal caiman meat.


2014 ◽  
Vol 59 (3) ◽  
pp. 319-328 ◽  
Author(s):  
Mirjana Milovanovic ◽  
Mirjana Demin ◽  
Biljana Vucelic-Radovic ◽  
Branka Zarkovic ◽  
Radmila Stikic

The purpose of this research was to blend quinoa (Chenopodium quinoa Willd.), buckwheat (Fagopyrum esculentum M?ench) and pumpkin (Cucurbita pepo L.) seed kernels at 40% level with wheat flour and to examine the effect of this blend on nutritional and sensory quality and also energy values of the pan bread. Hydrothermal preparation of these supplements is included. Chemical composition of the investigated materials, wheat bread and supplemented bread, was determined using relevant AOAC methods. Chemical composition of supplemented bread with an increase in protein, oil and crude fiber was superior in comparison with control wheat bread. Sensory properties of supplemented bread such as specific volume, appearance, crust and crumb texture, aroma-odor and color were evaluated and found excellent.


2009 ◽  
Vol 630 ◽  
pp. 71-74 ◽  
Author(s):  
Ilie Butnariu ◽  
Ioana Butnariu ◽  
Dana Butnariu

The present paper refers to the remelting of light waste. The research aims to provide a substantial decrease of the oxidation losses and a decrease of the noxious expulsion resulting from the production of aluminium alloys. The fundamental solution found consists in achieving a stable flux layer. For this the wastes are introduced directly in the metallic bath, without a previous preparation. Data about oxidation losses, the content of gases and the correlation between the casting properties and the quality of remelting secondary alloys are presented. Several samples are analysed in order to point out the quality of the alloy and the relationship between the chemical composition, the content of gases and the free linear contraction of the alloy.


2003 ◽  
Vol 2003 ◽  
pp. 150-150
Author(s):  
M. Afdal ◽  
D. I. Givens ◽  
C. Rymer ◽  
E. Owen ◽  
F. Mould

The use of faecal inoculum in in vitro feed evaluation methods was examined by Balfe (1985). However, there is limited information concerning the chemical composition of faeces and factors affecting this. The chemical composition of faeces may reflect the microbial population and hence its fermentative activity. A knowledge of the faecal composition is essential as this affects the quality of faecal inoculum. The objective of this work was therefore to study the relationships between diet and the chemical composition of faeces using data obtained from sheep.


2019 ◽  
Vol 1 (1) ◽  
pp. 1-8
Author(s):  
Małgorzata Suchacka ◽  
Nicole Horáková

Abstract In this article is drawn attention to the social aspects of improving the quality of production. The relationship between the development of technology and society is still underappreciated. There is a vital need to make technical managers aware of the rules governing interpersonal relationships. This theoretical article aims to bring the basic concepts of social sciences closer to recipients focused on constant improvement of the production quality. The essence of the work process is primarily the fact that it is done by a human being and mostly in a group of people. This is related to the consequences of sociological nature to which managers do not pay enough attention. Instead of focusing on social and interpersonal problems they are dealing with organizational issues. The conclusion of consideration leads to underlining the need for constant improvement - manager training in social engineering principles.


2020 ◽  
Vol 8 (9) ◽  
pp. 4944-4956
Author(s):  
Yin‐Yi Ding ◽  
Juanjuan Li ◽  
Cheng Wu ◽  
Yuexi Yang ◽  
Zhenyu Gu

2019 ◽  
Vol 15 (2) ◽  
pp. 174-182
Author(s):  
Eva Remišová ◽  
Gang Liu ◽  
Jozef Komačka ◽  
Shaopeng Wu ◽  
Yue Xiao ◽  
...  

AbstractThe quality of bituminous binders is commonly evaluated by the empirical tests. The functional approach to the evaluation of bitumen properties is a trend that has been applied in the last years. The dynamic shear rheometer (DSR) test has been widely used to determine the shear complex modulus of bitumen in the wide range of frequencies and temperatures. A lot of research works were focused on the effect of the chemical compounds of bitumen on the values of the shear complex modulus. The missing information related to the effect of the compound of bitumen on the elastic and plastic part of the shear complex modulus was input for the presented investigation. The significant effect on the elastic part of the complex modulus was determined only at the high temperatures (60 and 80 °C). The aromatics, resins and asphaltenes were identified as the influencing compounds. The important effect was also noted for the resins at the temperatures of 5 and 15 °C. It was also concluded that the effect of the saturates on the elastic part of the shear complex modulus is marginal. The effect of the aromatics and asphaltenes on the plastic part of the shear complex modulus was identified only at the temperature of 80 °C. The effect of these two compounds at other temperatures seems to be unimportant. The significant effect of the resins was stated for the temperatures of 15 °C and 5 °C. Their effect at other temperatures can be supposed as marginal. The negligible effect of the saturates on the plastic part of the shear complex modulus was deducted.The regression analysis of the chemical composition of the bitumen and the parts of the shear complex modulus at the temperature of 80 °C proved that the frequency of the DSR test can be a factor affecting the level of the relationship between the group composition of the bitumen and its rheological properties.


1990 ◽  
Vol 62 (3) ◽  
pp. 237-244
Author(s):  
Irma Suhonen ◽  
Leena Kokkonen

To study the growth and development of sweet fennel (‘ZEFA-Fino’ and ‘ZEFA-Tardo’) seedlings were raised under greenhouse conditions (night temperature 16—18°C) and planted out at 3—4 true leaf stage on May 21st, June 10th, July 7th and July 27th. The effects of covering mulch and short day treatment of seedlings were studied also. First harvests were performed when field measurements showed that the greatest width of ‘ZEFA-Fino’ bulbs were on average 60 mm. Three harvests were then performed at one week intervals. Plant and bulb weights, bulb greatest width and thickness and, the heights of plant, bulb and stem inside the bulb was measured. The number of bolters were recorded. The bulb width of ‘ZEFA-Fino’ reached 60 mm in 1.5—2 months after planting out depending on planting date. Plant and bulb weights, bulb width and thickness, stem height inside the bulb and the bulb height in the earliest plantings increased as the growth period lengthened. The bulb width of ‘ZEFA-Fino’ was in higher correlation with bulb weight than bulb thickness or height. The ratio between the height of stem inside the bulb and bulb height increased fastest in the lot planted under cover in May and in the lot planted out in June; at the fourth harvest the relationship was 0.8. The largest number of bolters (8 %) was found in the latter lot. The yield estimate for ‘ZEFA-Fino’ at the third and fourth harvest was 170—360 kg/are depending on planting date and length of the growing season. All lots of ‘ZEFA-Tardo’ except that planted in July bolted quickly after the bulb width had grown to 60—70 mm. The yield quality of ‘ZEFA-Tardo’ was low because of elongated bulbs and great variation in bulb height. Short day treatment (dark period 16 h) of the seedlings retarded but did not inhibit bolting of ‘ZEFA-Tardo’.


Author(s):  
Fan Guochuan ◽  
Sun Zhongshi

Under influence of ductile shear deformation, granulite facies mineral paragenesis underwent metamorphism and changes in chemical composition. The present paper discusses some changes in chemical composition of garnet in hypers thene_absent felsic gnesiss and of hypersthene in rock in early and late granulite facies undergone increasing ductile shear deformation .In garnet fetsic geniss, band structures were formed because of partial melting and resulted in zoning from massive⟶transitional⟶melanocrate zones in increasing deformed sequence. The electron-probe analyses for garnet in these zones are listed in table 1 . The Table shows that Mno, Cao contents in garnet decrease swiftly from slightly to intensely deformed zones.In slightly and moderately deformed zones, Mgo contents keep unchanged and Feo is slightly lower. In intensely deformed zone, Mgo contents increase, indicating a higher temperature. This is in accord with the general rule that Mgo contents in garnet increase with rising temperature.


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