This study was carried out at the Experimental Farm
and in the Laboratories of Horticulture Dep artments, Faculty of
Agriculture at Moshtohor, Benha Univ., during 2018/2019 and
2019/2020 seasons. The aim of this study was to investigate the
poss ibility of improving growth, seed s yield, oil productivity and fixed
oil constituents of chia (Salvia hispa nica L.) plants by some safety
growth stimulants treatments i.e. chitosan, ascobien, humic and
glutamic acids and micronutrients zinc (Zn) i.e., contr ol (tap water),
100 and 200 ppm, as well as their combinations. Plants were sprayed
with safety growth stimulants gave the significantly highest mean
values for all studied characteristics i.e., plant height, number of
branches per plant, plant fresh and dry weights, seeds yield/plant,
weight of 1000 seeds, chlorophyll a, b, carotenoids, N, P, K, total
carbohydrates, fixed oil percentage, and fatty acids determination of
chia (Salvia hispanica L.) plants, with superior for humic acid at 5 ml/l
followed by g lutamic acid at 200 ppm in the first and second seasons.
Meanwhile, ascobien at 200 ppm ranked the third v alues in this
concern. Irrespective of control plants the lowest values of these
parameters were scored by chitosan at 5 g/l in the 1
st
and 2
nd
season s.
As for zinc concentration treatments, there was appositive relationship
between the values of abovement ioned parameters and zinc
concentration, hence as the concentration of zinc increased the values
of these parameters increased till reached the highes t increases at the
highest concentration (200 ppm) in the two seasons. Furthermore, the
combination of hum ic acid at 5ml/l showed to be the most effective
one for inducing the highest values of these parameters especially
those sprayed with the highest concentration of zinc (200 ppm).
Chromatography analysis of chia fixed oil revealed the identification
of sev en components. The main component was α -linolenic acid
(37.28 to 39.72%). The major components were α-linolenic acid,
linoleic acid, oleic acid and palmi tic acid. It can be concluded that
humic acid at 5 m/l with Zn at 200 ppm was the best treatmen t for
improving growth, seeds yield, fixed oil productivity, chemical
constituents and fixed oil components of chia (Salvia hispanica L.)
plant . |
