H. Azarnivand; M. Alikhah; H. Arzani; Gh. Amin; M. Jafari; S.S. Mousavi
Volume 25, Issue 1 , May 2009, , Pages 85-91
Abstract
The essential oil yield and composition of the aerial parts of Diplotaenia cachrydifolia Boiss. were investigated in green and dry states, to understand why it is toxic and unpalatable in green state and palatable in dry state, for livestock. The essential oil was obtained by hydro-distillation method ...
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The essential oil yield and composition of the aerial parts of Diplotaenia cachrydifolia Boiss. were investigated in green and dry states, to understand why it is toxic and unpalatable in green state and palatable in dry state, for livestock. The essential oil was obtained by hydro-distillation method with Clevenger-type apparatus. GC and GC/MS analysis were carried out for investigating the oil composition. According to the results, the oil yield was 2.7% in green state and 0.4% in dry state. Ighteen components were identified representing 91.4% of the oil in green state and 17 components representing 91.6% of the oil in dry state. The major volatile components in green state were: limonene (49.6%), Cis-β-ocimene (12.6%), dill apiole (10.8%) and α-phellandrene (4.32%), respectively and in dry state were: limonene (50.7%), dill apiole (18.3%), Cis-β-ocimene (10.3%) and α-pinene (4.1%), respectively. The results showed that the high amount of the oil in green state is a factor for decreasing plant palatability. Furthermore, β-myrcene and α-phellandrene which are harmful biological compounds decreased in dry state. These compounds are introduced as forage anti-quality factors. In conclusion, the high quantity of volatile oil and some components are forage anti-quality factors.
M.H. Lebaschy; A. Matin; Gh. Amin; E. Sharifi; L. Ahmadi
Volume 10, Issue 1 , November 2001, , Pages 39-64
Abstract
Fluctuation of hypericin and yield in Hypericum perforatum was examined in Karaj Research Station in 1989. In this study chemical fertilizer, organic manure and combination of them were allocated in subplot, and plant density was allocated as main plot with 4,5.7 and 10 plant m?. In a split plot design ...
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Fluctuation of hypericin and yield in Hypericum perforatum was examined in Karaj Research Station in 1989. In this study chemical fertilizer, organic manure and combination of them were allocated in subplot, and plant density was allocated as main plot with 4,5.7 and 10 plant m?. In a split plot design under CRBD with 3 replication. Hypericin in the tops from the first harvest was extracted and measured by Soxhlet and spectrophotometer. Hypericin extraction was performed in two stages by CHCL3 and MeOH and measured by standard hypericin. The results showed that the combination of fertilizer and manure and also manure alone produced maximum hypericin, in the first harvest which were 2262 and 2197 ppm, respectively. Hypericin yields of the mentioned treatments with 4684 and 4534 gr/ha also showed significant difference with chemical fertilizer and control. The highest hypericin yield produced in 10 plant m density. Sum of hypericin yields for combination of manure and fertilizer treatment in two harvests reaches to 8094 gr/ha. It seems that combination of chemical fertilizer and manure by improvement of the soil physical, chemical and biological properties are able to improve hypericin content without any toxicity in this medicinal plant.
E. Sharifi Ashorabadi; A. Ghalavand; Gh. Noormohammadi; A. Matin; Gh. Amin; P. Babakhanlou; M.H. Lebaschi; F. Sefidkon
Volume 7, Issue 1 , April 2001, , Pages 1-26
Abstract
The effect of different amounts of fertilizers, N.P.K., manure, as well as mixture of them in an expriment was investigated at Alborz Research Center, karaj, IRAN in 1996-97. The effects of the fertilizers were studied on seed and shoot yield of Fenel (Foeniclum vulgare), system treatments include various ...
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The effect of different amounts of fertilizers, N.P.K., manure, as well as mixture of them in an expriment was investigated at Alborz Research Center, karaj, IRAN in 1996-97. The effects of the fertilizers were studied on seed and shoot yield of Fenel (Foeniclum vulgare), system treatments include various levels of net chemical fertilizers, N.P.K., used in comercial or chemical agricultural systems as well as different levels of manure used in sustainable or organic systems, and a mixture of different ratios of fertilizers and manure used in mixture systems, and the control (with any fertilizer or manure). The expriment was condacted using completely Randomized Block Exprimental design with three replications. The results of first and second years of the expriment showed that in chemical systems, seed and straw had a higher performace in treatments 5(N=160 P= 128 and K=160 Kgha') and No.4 (N=120, P=96 and K=120 Kgha), which equalled 901.33 and 4326.2 Kgha?, respectively while in organic systems related to treatment No.13(40 tonh' manure) that resulted 947.17 and 5147.2 Kgha'', While the highest yield of seed and straw in mixture agroecosystems belonged to treatment No.10 (a mixture of 25 tons of manure with N=60, P=48 and K=60 kgha! chemical fertilizers) with seed an straw yield 1182.67 and 6627 Kgha, respectively. In comparison with the control treatment, seed and straw yield increase were: 69.37% and 31.49% for net chemical system; 122.23% and 101.43% for mixture system; and 77.98% and 56.44% for organic system respectively. The combined analysis of data from two consecutive years of the expriment indicated that shoot biomass of plant, seed & straw yield in mixture systems in comparison to net chemical and organic systems, rised significantly, which is comparisonly more tangible in the second year. This results could be related to that mixture of chemical fertilizer and manure, which is a nutritive source for the plant and plays an important role in improvment of chemical and physical structure of soil.
