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Wyszukujesz frazę "yield size" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Impact of sowing depth and seed size on the dynamics of germination and productivity of spring wheat
Autorzy:
Sułek, Alicja
Ogórkiewicz, Monika
Powiązania:
https://bibliotekanauki.pl/articles/2148088.pdf
Data publikacji:
2020-12-30
Wydawca:
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:
spring wheat
seed size
sowing depth
germination rate
grain yield
yield components
Opis:
In the years of 2013–2014, pot experiments were conducted to determine the influence of sowing depth and seed size on the dynamics of spring wheat emergence and yields. The study was carried out in Mitscherlich pots using the random block method, in four replications. The experiment included spring wheat cultivar Tybalt. The first factor of the experiment was the sowing depth of seeds (1, 3, 5, 7 cm), while the second factor was the seed yield. Four levels of the second factor were taken into account: a1 – certified material (purchased), a2 – small-sized seeds (1.8 – 2.2 mm), a3 – medium seeds (2.2 – 2.5 mm), a4 – large seeds (> 2.5 mm). Adequate size of seeds for the study was ensured by sorting out of the certified material on Vogel screens. The research showed the joint impact of seed size and sowing depth on grain yield formation, number of plants and ears per pot and production tillering. The application of the sowing depth of 7 cm resulted in a significant decrease in grain yield from the pot of all seed fractions, especially the smallest fraction of seeds (1.8 – 2.2 mm). The variant of sowing large seeds (> 2.5 mm) at the depth of 3 cm turned out to be the most beneficial for grain yield.
Źródło:
Polish Journal of Agronomy; 2020, 43; 63-69
2081-2787
Pojawia się w:
Polish Journal of Agronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enhancement of Quinoa Grain Yield and Nutritional Quality by Potassium Fertilization Combined with Foliar Spraying of Seaweed Extract
Autorzy:
Ali, El-Sayed El-Shahat El-Sayed
El-Samad, Emad El-Din Hassanein Abd
Abdelaal, Hala Ahmed
AbouSekken, Mahmoud Saad
Powiązania:
https://bibliotekanauki.pl/articles/24201648.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Chenopodium quinoa
grain yield
weight of 1000-grain
grain size
grain mineral content
grain nutritional profile
Opis:
The current work was carried out during the two growing seasons of 2016/2017 and 2017/2018 at the Experimental Station of the Environmental Studies and Research Institute, University of Sadat City, Sadat City, Menofia Governorate, Egypt. It aimed to investigate the effect of applying potassium fertilizer at 90, 140 and 190 kg K2O/ha combined with spraying applications of seaweed extract for four times in a 15-day interval starting at 40 days after sowing at rates of 0.0, 1.5 and 3.0 ml/L on the yield, mineral contents and nutritional quality of quinoa grains cv. CICA. A split-plot design was used in three replicates. Results reported that by increasing the application of potassium from 90 to 190 kg K2O/ha, gradual increases in all studied parameters of quinoa grains occurred in the seasons of 2016–2017 and 2017–2018, except for class B grain, Mg and fiber contents. Potassium application at 190 kg K2O/ha gave the highest significant values of all determined parameters in comparison with treatment of 90 kg K2O/ha. In most cases, insignificant differences were detected between potassium fertilizer levels of 140 and 190 kg K2O/ha. Spraying seaweed extract at 3.0 ml/L resulted in superiority of all studied characters except class B grain, Mg and fiber contents, followed by 1.5 ml/L treatment with insignificant differences between them in most cases. There were significant differences among spraying seaweed treatments on Ca, Fe, Mn, protein and fiber contents in both seasons, N, P and K during the first season, and grain yield/plant, total grain yield/ha and Zn content during the second season. The interaction between potassium fertilization levels and spraying applications of seaweed extract had significantly different effects on all studied characters during both seasons, except for Mg percentage. It is evident that the application of potassium fertilization at 140 or 190 kg K2O/ha combined with the spraying of seaweed extract at 3.0 ml/L caused an apparent enhancement of the yield, mineral contents and nutritional quality of quinoa grains during the two experimental seasons.
Źródło:
Journal of Ecological Engineering; 2023, 24, 3; 341--356
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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