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Articles 61 - 64 of 64
Full-Text Articles in Forest Sciences
Antioxidant Properties Of Methanolic Extract From Inula Graveolens L., Adnan J. M. Al-Fartosy
Antioxidant Properties Of Methanolic Extract From Inula Graveolens L., Adnan J. M. Al-Fartosy
Turkish Journal of Agriculture and Forestry
The aim of this study was to assess the possible antioxidant activities of 80% methanolic extract from the Inula graveolens L. plant. It was found that the methanolic extract has the highest content of phenolic (1.63%, calculated as gallic acid) and flavonoid (0.52%, calculated as quercetin) equivalents per 100 g of dry mass. The methanolic extract possesses strong antioxidant activity (64.28%) as well as strong reducing power (increasing as the extract concentration increases) and ferrous ion chelating (96%) abilities. Moreover, the methanolic extract shows the highest free radical-scavenging activities for superoxide anion and hydroxyl radical, reaching 93.43% and 91.38%, respectively.
Micrometeorological Observations Above A Japanese Red Pine Forest Within The Growing Season, Pedram Attarod, Masatoshi Aoki, Vilma Bayramzadeh, Mohammad Taghi Ahmadi
Micrometeorological Observations Above A Japanese Red Pine Forest Within The Growing Season, Pedram Attarod, Masatoshi Aoki, Vilma Bayramzadeh, Mohammad Taghi Ahmadi
Turkish Journal of Agriculture and Forestry
Knowledge of vegetation-atmosphere interactions has great importance in ecological research, and to recognize these effective interactions, the collection and interpretation of micrometeorological data are essential. The main goal of this study was to understand the trends of evapotranspiration (ET) and other micrometeorological parameters within the growing season above a Japanese red pine forest in Japan. To measure ET, the Bowen ratio-energy balance approach was employed. These measurements were used with the Penman-Monteith reference evapotranspiration (ET_0) in order to create crop coefficients (K_c) by the ratio of ET:ET_0. Mean daily ET on the dry and rainy days was found to be …
Assessment Of Yield And Water Use Efficiency Of Drip-Irrigated Cotton (Gossypium Hirsutum L.) As Affected By Deficit Irrigation, Fuad Hussein, Mussaddak Janat, Abdallah Yakoub
Assessment Of Yield And Water Use Efficiency Of Drip-Irrigated Cotton (Gossypium Hirsutum L.) As Affected By Deficit Irrigation, Fuad Hussein, Mussaddak Janat, Abdallah Yakoub
Turkish Journal of Agriculture and Forestry
A field experiment was conducted for 2 consecutive years to evaluate the response of cotton crop to deficit irrigation under drip irrigation conditions. Water use efficiency (WUE), seed cotton yield, and fiber quality parameters were assessed at various irrigation levels. The experiment was set up to apply water at 4 different application rates: 50%, 65%, 80%, and 100% of the soil water depletion. These were abbreviated as DI50, DI65, DI80, and FI, respectively. The total amounts of irrigation water applied were 408 and 773 mm and the average seed cotton yields were 2909 and 5090 kg ha^{-1} for the DI50 …
Fertilization Enhances Growth, Yield, And Xanthophyll Contents Of Marigold, Iftikhar Ahmad, Muhammad Asif, Atyab Amjad, Sagheer Ahmad
Fertilization Enhances Growth, Yield, And Xanthophyll Contents Of Marigold, Iftikhar Ahmad, Muhammad Asif, Atyab Amjad, Sagheer Ahmad
Turkish Journal of Agriculture and Forestry
The effects of various NPK levels on growth, flowering, and xanthophyll contents of African marigold (Tagetes erecta, 'Double Eagle') and French marigold (Tagetes patula, 'Yellow') were investigated. Plant height, number of branches plant^{-1}, leaf area (cm^2), total chlorophyll contents (mg g^{-1}), number of flowers plant^{-1}, flower diameter, flower quality, fresh and dry weight of a flower, total flower weight plant^{-1}, blooming period, and days to flowering were maximum with 15:10:10 g m^{-2} NPK application. However, leaf nitrogen, phosphorus, and potassium contents reached the highest values with 15:20:10, 5:20:10, and 10:20:10 g m^{-2} NPK application, respectively. Xanthophyll contents were higher in …