Abstract This experiment was conducted in the unheated plastic house of Horticulture and Landscaping Department College Agriculture / University Tikrit agricultural season 2021-2022. To study effect nano-fertilization at a concentration 0, 1.5, 3 g, planting with different sizes tubes diameter 4, 6, 8 inches on qualitative characteristics two varieties seedlings Fragaria ananassa Duch plant. An...

Sugar metabolism is one of the important factors involved in winter hardiness and since the discovery of sucrose biosynthesis, considerable advances have been made in understanding its regulation and crucial role. This investigation examined the changes in activities of sucrose metabolizing enzymes and sugar content during cold hardening of perennial ryegrass (Lolium perenne L.). Changes in aci...

The aim of this study was to analyze the effect of drought stress on the kinetics of leaf elongation in relationship to the variation of sugar concentrations and their net deposition rates along the elongation zone of leaf 4 of durum wheat plants. Plants were grown in soil in a naturally illuminated greenhouse, and water...

A water soluble galactomannan having D-Mannose [4-part] and D-Galactose [2-parts] was isolated from Cassia fistula. In cassia fistula Hydrolysis of methylated seed gum furnished three methylated sugars, 2, 3-di-O-methyl-D-mannose, 2, 3,6-tri-O-methyl-D-mannose and 2, 3,4,6-tetra-Omethy-D-galactose was present in molar ratio 3:2:1. Partial acid catalysed hydrolysis of the seed gum gave five olig...

For the conversion of plant biomass into various bioproducts, a significant bottleneck is enzymatic hydrolysis of lignocelluloses to soluble sugars. These sugars are then metabolized through various natural or engineered pathways toward products of interest. The success of projected biorefinery processes depend to a large extent on the economics of hydrolytic enzyme production. Presently, mesop...

Paper birch (Betula papyrifera Marsh) seedlings were grown in a greenhouse in either subsoil or topsoil in factorial combination with two fertilization and drought regimes to investigate how different soil environments and nutrient availability drive belowground partitioning between growth, secondary metabolism and ectomycorrhizal (EM) associations, and impact drought tolerance of paper birch. ...

The study was undertaken to envisage the effect of growth regulators on preharvest fruit drop and quality of Kinnow mandrin (Citrus reticulata Blanco). Various concentration of 2, 4-D, GA3 and NAA were applied during the last week of November, 2005 to check the impact of various treatments on preharvest fruit drop, yield and fruit quality. Exogenous application of growth regulators significantl...

abstract background and objectives: soil salinity is one of the most important limited factors of plant productions. physiological drought resulting from salinity stress is one of the main reasons of limiting water absorption from soil. moreover, increasing the salt absorption by plants cause to disorder in physiological and cellular processes. spearmint (mentha spicata l.) is from lamiaceae fa...