Hira Javaid Siddiqui¹, Shamim Gul^1,2,*, Attiq-ur-Rehman Kakar³, Umbreen Shaheen⁴, Gul Bano Rehman¹, Naqeebullah Khan³, Samiullah³

Phyton-International Journal of Experimental Botany, Vol.90, No.2, pp. 651-676, 2021, DOI:10.32604/phyton.2021.011413

Abstract This pot-based study investigated the influence of poultry manure and 1:1 mixture of poultry manure + biochar (produced from farmyard manure [FYM] or wood), on the biomass production and concentration of heavy metals in leaves of lettuce and spinach. The concentration of mineral nitrogen (N) and soluble inorganic phosphorus (P) of soils cultivated with these vegetables was also investigated. The application of poultry manure or FYM biochar in soil as 10% (equivalent to 60 t ha^–1 , an estimated 1726.8 kg ha^–1 N in poultry manure and 1353.9 kg ha^–1 N in FYM) and 15% amendment (equivalent to 90 t… More >

Muhammad Zafar-ul-Hye^1,*, Misbah Batool Zahra¹, Subhan Danish¹, Mazhar Abbas², Abdur Rehim¹, Muhammad Naeem Akbar¹, Ayesha Iftikhar¹, Mehreen Gul¹, Ifat Nazir¹, Maria Abid¹, Muhammad Tahzeeb-ul-Hassan¹, Maria Murtaza³

Phyton-International Journal of Experimental Botany, Vol.89, No.2, pp. 405-413, 2020, DOI:10.32604/phyton.2020.08918

Abstract Rhizosphere bacteria that colonize plant roots and confer beneficial effects are referred as plant growth promoting rhizobacteria (PGPR). Among all PGPR, some rhizobacteria have an ability to produce ACC deaminase enzyme. This enzyme catalyzes stress ACC into a-ketobutyrate and ammonia instead of letting it to be converted to ethylene. Ethylene level rises in plants under stress conditions i.e., drought, salinity, poor soil fertility etc. As poor soil fertility is a big hurdle to achieve the optimum yield of crops, inoculation of ACC deaminase PGPR can overcome this problem to some extent. The aim of the current study was to examine… More >

Laura Siverio Martínez¹, Mayra González Hurtado^1,*, Laura M. Castro González², Jacques Rieumont Briones³, Ariel Martínez García¹, María I. Hernández Díaz⁴

Phyton-International Journal of Experimental Botany, Vol.88, No.4, pp. 459-470, 2019, DOI:10.32604/phyton.2019.07719

Abstract Fertilizers industry faces the challenge of improving the efficiency of its products either by optimizing the fertilizers in use or by developing new types of them. During the last decade, controlled and slow release technologies have become more important. These technologies aim to increase the efficiency of the applied substance by increasing its action over time and avoiding losses of all kinds (leaching, volatilization). The main purpose of the current study was to obtain a slow release biofertilizer by incorporating microalgae into a polymeric ureaformaldehyde matrix (PUFM). The quantitative analysis of macronutrients and micronutrients in the microalgae was determined using… More >

Juan Isidro Sánchez-Duarte¹, David Guadalupe Reta-Sánchez^1,*, José Antonio Cueto-Wong¹, Arturo Reyes-González¹, Esmeralda Ochoa-Martínez¹

Phyton-International Journal of Experimental Botany, Vol.88, No.4, pp. 435-448, 2019, DOI:10.32604/phyton.2019.07512

Abstract Canola and oat forage potential may be affected by climatic conditions when sown early. The objective of this study was to evaluate the forage canola and oat potential in four early sowing dates (September 11 and 25; October 9 and 23) during the 2012-2013 and 2013-2014 cycles in Matamoros, Coahuila, Mexico. Growth cycle duration, chemical composition, dry matter (DM), crude protein (CP), and net energy for lactation (NE_L) yields were determined. High temperatures and long photoperiods affected crops seeded on September 11, accelerating growth and reducing canola (26.6%-31.7%) and oat (15.8%) DM yields. As of September 25, canola cv IMC… More >

Lu J^1,2, SX Zhang^1*, JP Fang², WL Zheng²

Phyton-International Journal of Experimental Botany, Vol.85, pp. 142-148, 2016, DOI:10.32604/phyton.2016.85.142

Abstract Precipitation, throughfall and stemflow were monitored and collected through the rainy season on a natural forest ecosystem of Pinus densata in the Gongbu Nature Reserve in Tibet. The concentrations of N, P, K, Na, Ca, Mg, Si, Mn, Fe, S, Zn and Cu were analyzed in the precipitation, throughfall and stemflow waters, Thereafter, and according to the amount of water of precipitation, throughfall and stemflow, the net input was calculated for each nutrient in the forest. The results showed that: (1) During the entire rainy season, the average concentration of different nutrients in the precipitation of the Pinus densata forest… More >

Gul B¹, M Islam², S Ahmad³, S Gul¹

Phyton-International Journal of Experimental Botany, Vol.85, pp. 94-99, 2016, DOI:10.32604/phyton.2016.85.094

Abstract Spatial and temporal patterns of aboveground biomass and nutritive value of rangeland species with respect to the influence of grazing and soil moisture were investigated. The research was conducted during two years at the Tomagh Research Station, near Sanjawi, Ziarat District, Balochistan, Pakistan. This area is protected from grazing since 1998; however, some of the area is open for grazing. Three sites were selected for research purposes: a protected plain, a protected hilly, and an unprotected plain grazed area. Sampling was carried out during the spring, summer and autumn seasons. Results revealed that soil moisture was greater at the protected… More >

Wei TX¹, XJ Zhang^1,2, JZ Zhu¹

Phyton-International Journal of Experimental Botany, Vol.83, pp. 213-223, 2014, DOI:10.32604/phyton.2014.83.213

Abstract In order to examine the nutrient content, and the distribution and accumulation patterns of individual nutrients in the natural secondary forests (NSFs), sample NSF plots were selected in the Caijiachuan watershed on the Loess Plateau. On the basis of a comprehensive field inventory to the NSFs in Caijiachuan watershed, a 40 m × 40 m sample plot was selected as the representative plot. Each tree plant was then measured to select the standard tree in accordance with a diameter-scale. For measurement of the biomass in the above-ground part of the tree, it was divided into parts and measured. The study… More >

Wen L¹, SK Dong¹, YY Li¹, C Pulver², XY Li¹, JJ Shi³, YL Wang³, YS Ma³, DM Liu⁴

Phyton-International Journal of Experimental Botany, Vol.82, pp. 45-54, 2013, DOI:10.32604/phyton.2013.82.045

Abstract The alpine grassland in the Qinghai-Tibet Plateau is an extensive rangeland ecosystem sustaining a sparse population of traditional nomadic pastoralists in China. However, global climate change and anthropologic disturbances have severely degraded the alpine grasslands, and the consequences of this degradation are largely unknown. Forage is the only food source for livestock in the alpine region, and livestock is the major income source for nomadic herders. Therefore, it is critical to assess the forage quantity and quality along the current grassland degradation gradient. In this study, we examined the botanical composition, biomass of different functional groups, and forage grass nutritive… More >

Li SL, YB Zhang, YK Rui, XF Chen

Phyton-International Journal of Experimental Botany, Vol.81, pp. 41-43, 2012, DOI:10.32604/phyton.2012.81.041

Abstract Minerals are essential for human nutrition and plant growth and development. Nutrient concentrations in plants are related to many factors, including soil types. The impact of soil types on nutrient accumulation in corn, grown in black and sandy soils, was studied in the same area and management conditions. The results showed that the descending order of nutrient content was Ca > Fe > Zn > Mn > Cu > Se > Mo in both soil types. The contents of Ca, Mn, Fe, Se and Mo in kernels of corn grown in sandy soil were higher than those in corn grown… More >

Salinas¹ R, E Sánchez², JM Ruíz³, MT Lao¹, L Romero³

Phyton-International Journal of Experimental Botany, Vol.81, pp. 35-39, 2012, DOI:10.32604/phyton.2012.81.035

Abstract We determined the (1) deficiency, (2) apropriate level and (3) toxiticity of phosphorus on the total biomass production and yield of judía verde (Phaseolus vulgaris L.) cv. ‘Strike’. Studies were conducted in a growth chamber using pots. Phosphorus levels in the nutrient solution were P1: 0.5 mM; P2: 1 mM; P3: 2 mM; P4: 4 mM; P5: 6 mM, and P6: 8 mM. The optimum phosporus concentration was P3. As soil phosphorus concentration increased, concentration of this nutrient also increased in the plant. Leaf, petiole and shoot biomasses were more sensitive to deficiency than to toxicity of phosphorus. However, root… More >