Plant Productions

Evaluation of Some Phytochemical Characteristics of Berberis integerrima in Response to Nano-Zinc Foliar Application and Post-Harvest Drying Temperature

lamia vojodimehrabani; Rana Valizadeh Kamran; mohammad bagher hassanpouraghdam

Volume 42, Issue 3 , December 2019, , Pages 345-358

https://doi.org/10.22055/ppd.2019.22929.1503

Abstract

Abstract Background and Objectives Mineral nutrition and post-harvest handling are the major factors affecting secondary metabolites content and composition of plants. Berberis integerrima ... Read More Abstract Background and Objectives Mineral nutrition and post-harvest handling are the major factors affecting secondary metabolites content and composition of plants. Berberis integerrima is one of the most important medicinal plants listed in all pharmacopeias. The bark, fruits and roots of this plant are commonly being used by traditional and modern medicine disciplines. They are well documented for their anti-diabetic, anti-cancer, and antimicrobial activities with berberine as the main active constituent. Also, the shrub has ornamental uses in the landscape and the fruit is used as a food additive. In addition, anthocyanin of the fruit is useful as a natural coloring agent in food industries. There are few studies on the agronomic demands and post-harvest handling of this plant. The experiment was conducted to assay the effects of nano-zinc foliar application and postharvest plant drying temperature on some phytochemical traits of this highly valuable plant. Materials and Methods The treatments were applied to assay the phytochemicals content variations in roots, fruits and aerial parts of the plant (2 years old) by two separate experiments as factorial based on RBCD. In the first experiment, the effects of nano-zinc foliar spray on the yield, anthocyanin content, Zinc content and TSS at the different mentioned organs were studied. In the second experiment, the effects of diverse post drying temperatures (25, 50 and 750C) on total phenolics content, flanonoids content, hydrolysable tannin and berberin content in Berberis integerrima were assayed. Results Zn content, TSS content and anthocyanins were affected by the independent effects of foliar spray and plant part. Plant dry weight was impacted by the organ type. Phenolics, flavonoids and alkaloids contents were affected by the interactional effects of the foliar spray , the organ type, and the drying temperature. The highest figure for the contents of alkaloids (30 mg g-1DWt) and flavonoids (26.9 mg g-1DWt) were from the root × foliar spray by 6 mgL-1 Nano-Zinc at 250C drying regime. The maximum amount of total phenolics was attained by the aerial parts × foliar spray by 6 mgL-1 Nano-Zinc at 250C and fruits × 3 and 6 mgL-1 foliar spray at 250C. For hydrolysable tannins (1.9%), the root and the aerial parts × 250C showed the largest figure. Discussion The overall results revealed the positive effects of nano-zinc foliar application on the studied gross secondary metabolites content in Berberis integerrima. The post-harvest drying temperature influenced the metabolites content as well, and the optimized temperature in the experiments was 250C.

The Effects of Urea and Organic Fertilizers on Nitrate Accumulation and Some Physiological Traits of Spinach (Spinacia oleraceae)

L. Vojodi Mehrabani; R. Valizadeh Kamran; Z. Soltanighralar; Z. Emanizeraatcar; Z. Masoumpoor

Volume 41, Issue 3 , December 2018, , Pages 83-94

https://doi.org/10.22055/ppd.2018.21546.1462

Abstract

Abstract Background and Objectives Management of organic fertilizers utilization is of the main components of organic crops production which can greatly affect the yield and quality ... Read More Abstract Background and Objectives Management of organic fertilizers utilization is of the main components of organic crops production which can greatly affect the yield and quality of plants. Due to the short time course of leafy vegetables production, farmers commonly use nitrogenous chemical fertilizers for the nourishment of plants. The results are huge nitrate accumulation on the edible parts of the vegetables and hence the deteriorating health side effects. So, owing to the necessity of vegetables in the daily diet, resorting to the production methods to reduce the nitrate accumulation and even preserve and add up the nutritious quality of vegetables is of great interest. Materials and Methods This experiment was conducted to evaluate the effects of deferent levels of cow, vermicompost and poultry organic fertilizers (0, 10, 20 and 30% in volume) and urea (102, 204 and 306 g Kg/ha) on nitrate accumulation (morning and evening sampling time) and Fe2+, Zn2+ and potassium concentration and total phenolic content as well as on some growth characteristics of spinach as RBCD design with three replications in Azarbaijan Shahid Madani University during 2016. Results The results revealed that the highest morning nitrate accumulation (2435 mg Kg-1 Fwt) and that of evening (2052 mg Kg-1 Fwt) belonged to 306 kg/ha urea treatment. Leaf length was effected by 20% (3.6 cm) and 30% (8.8 cm) of poultry manure. The highest data for TSS and root fresh and dry weight were attained by 10 and 20% of cow manure. The treatments, 20 and 30% of vermicompost, cow manure and 30% poultry manure increased the leaves fresh and dry weight. All levels of poultry and vermicompost manure had positive effects on potassium content. The highest amounts of Fe2+, Zn2+ and total phenolic content were recorded in 10, 20 and 30% cow manure and vermicompost manure Discussion Nitrate accumulation in vegetables is dependent upon several intrinsic and extrinsic factors of which, mineral nutrition is of crucial importance. Considering the positive response of spinach to the application of organic fertilizers, it seems that using these organic fertilizers would greatly decline the chemical fertilizers input as well as reduces the environmental side effects of chemicals and virtually goes to the production of safe organic products under sustainable production systems.

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Author = Valizadeh Kamran, R.

Evaluation of Some Phytochemical Characteristics of Berberis integerrima in Response to Nano-Zinc Foliar Application and Post-Harvest Drying Temperature

Abstract

The Effects of Urea and Organic Fertilizers on Nitrate Accumulation and Some Physiological Traits of Spinach (Spinacia oleraceae)

Abstract