5462
Rasha fouad ismail ahmed
Effect of some agricultural practices on growth , yoeld and active constituents of chia
Salvia hispanica – Seeds – Irrigation levels – Foliar-spray application – Proline – Salicylic acid – Putrescine – Fixed oil – Fatty acids – GC-MS – Antioxidant activity – Water use efficiency.
This study was carried out in two successive seasons (2014-2015 and 2015-2016) at SEKEM company Farm (Bilbase, Sharkya Governorate) on chia (Salvia hispanica) plant. The effect of three different irrigation levels of reference evapotranspiration (80, 100 and 120 % ETo) with foliar application of three levels of proline (100, 200 and 300 ppm), salicylic acid (200, 400 and 600 ppm) and putrescine (10, 15 and 20 ppm) in addition to the control treatment (tap water) was investigated on growth, yield and active constituents of Salvia hispanica cultivated in sandy loam soil with drip irrigation system. The layout of this experiment was split plot design with three replicates. The main plots were assigned to irrigation levels, while the sub plots were assigned to foliar-spray application. Data were recorded for plant height (cm), number of branches/plant, fresh and dry weights of herbage (g/plant), fresh and dry weights of roots (g/plant), seeds weight (g/plant). Photosynthesis pigments, proline, total carbohydrates, total phenolics, antioxidant activity of herb methanolic extract were determined in herb in all treatments. Total carbohydrats, protein, fixed oil % and antioxidant activity of the fixed oil were determined in seeds in all treatments. The main fatty acids of the fixed oil of each treatment were qualitatively and quantitatively determined using GC-MS.
2018
Ph.d
Ain Shams
Agriculture