Plant Productions

Effect of amino acids combination on the quantitative and qualitative characteristics of garlic (Allium Sativum L.)

Ali Heidarzadeh; Seyed Ali Mohammad Modarres-Sanavy

Volume 46, Issue 2 , September 2023, , Pages 237-249

https://doi.org/10.22055/ppd.2023.42775.2071

Abstract

IntroductionGarlic is one of the most widely employed condiments in cooking. It has been found to possess important biological properties with high therapeutic potential, which is influenced ... Read More IntroductionGarlic is one of the most widely employed condiments in cooking. It has been found to possess important biological properties with high therapeutic potential, which is influenced by the mode of its utilization, preparation, and extraction. It has been attributed with antioxidant, anti-inflammatory, and immunomodulatory capacities. Garlic, in particular its organosulfur compounds, can maintain immune system homeostasis through positive effects on immune cells, especially by regulating cytokine proliferation and expression. Amino Acids are the building units of proteins. There are about 300 amino acids occur in nature. Only 20 of them enter in proteins synthesis. Amino acids are essential nutrients for plant growth. Due to the characteristics of amino acids, they have a unique promotion effect on plant growth, especially on photosynthesis. Amino acids are good organic nitrogen sources in plant. They can be directly absorbed and utilized by cells, promote protein synthesis, and have a good effect on the growth. Spraying or irrigating amino acid nutrient liquid fertilizer can increase the element of various nutrients required in the plant, aggravate the accumulation of dry matter and the speed and quantity of the operation from the root or leaf to other parts, and adjust the proportion and balance of macroelement, trace element and other nutrients. Thus, the normal growth of the plant will be regulated. Many studies proved that amino acids play a positive role in enhancing the plant yield and quality when they are sprayed at different growth stages. This research was done to study effect of different amino acids compound on the quantitative and qualitative characteristics of garlic. Materials and MethodsThe experiment was performed at three replications in a completely randomized blocks design in the Research Field of Tarbiat Modares University during the 2018-19 growing season. The experimental treatments included: 1) Arginine + Aspartic acid 2) Arginine + Valine 3) Arginine + Tyrosine 4) Arginine + Leucine 5) Aspartic acid + Valine 6) Aspartic acid + Tyrosine 7) Aspartic acid + Leucine 8) Valine + Tyrosine 9) Valine + Leucine 10) Tyrosine + Leucine 11) Trade amino acid 12) Distilled water 13) No amino acid (control). Results and DiscussionThe results showed that the maximum bulb fresh weight (13.054 t ha-1) and photosynthetic rate (10.58 µmol m-2s-1) was obtained from the aspartic acid + leucine. Also, the highest amount of chlorophyll a, b and total chlorophyll was obtained from the compound of aspartic acid with leucine, while the lowest carotenoid was observed in the application of aspartic acid with leucine (2.43 mg gF.W-1) and arginine with leucine (3.10 mg gF.W-1). The highest catalase activity was observed in the use of arginine with aspartic acid (9064 U mgFW-1), while the peroxidase activity was higher in the aspartic acid + valine (517 U mgFW-1), arginine + and tyrosine (511 U mgFW-1) and arginine + leucine (496 U mgFW-1) treatments. ConclusionIn general, it seems that foliar spraying of amino acids increases the plant's energy efficiency (plant energy storage for the production of amino acids) and also increases the photosynthesis rate and thus helps the plant to increase the yield of the plant. Among the investigation of different combinations of amino acids, the combination of aspartic acid and leucine increased the performance more than other combinations and is introduced as the best treatment.

Effects of Application and Type of Amino Acids on the Activity of Antioxidant Enzymes, Proline Content and Seed yield of Lentil (Lens culinaris Medik.)

Ali Heidarzadeh; Seyed Ali Mohammad Modarres-Sanavy

Volume 44, Issue 3 , December 2021, , Pages 381-394

https://doi.org/10.22055/ppd.2020.31327.1834

Abstract

AbstractIntroductionLentil is used mainly for human consumption as a source of protein and carbohydrates in soups, stews and vegetarian dishes. It is grown to improve economical returns ... Read More AbstractIntroductionLentil is used mainly for human consumption as a source of protein and carbohydrates in soups, stews and vegetarian dishes. It is grown to improve economical returns to producers, diversify and lengthen crop rotations and reduce the requirement for nitrogen fertilizer. Lentil, a member of the legume family, Leguminosae, can supply a significant part of its Nitrogen requirement by fixing Nitrogen from the air when inoculated with the appropriate rhizobial inoculant. The pattern of nutrients in the proximal composition of lentil is similar to that of other grain legumes, but seed protein content (19.5–35.5%) is less than in soybean. Fiber concentration is low and is largely within the seed testa, so the fiber in lentil meal can be reduced if it is de-hulled before grinding. In addition to high-quality protein, essential amino acids, and major minerals, the seed contains iron up to 505 mg kg-1 and zinc up to 330 mg kg-1 on a whole seed basis. Amino acids are help in tissue protein formation. Some amino acids are not synthesized in the body and it is necessary to take them in diet. Lentils contain different amino acids that can be used by most people. This research was carried-out to study effect of different amino acids on the activity of antioxidant enzymes, Proline content and seed yield of lentil in delayed planting. Materials and MethodsThe research was conducted as a factorial experiment based on a randomized complete block design with three replications in the Research Farm of Agricultural Faculty, Tarbiat Modares University, through May to July, 2018. The studied factors included mode of application (priming, spraying and priming + spraying) and type of amio acids (Arginine, Aspartic acid, Proline, trade amino acid (proamin) and distilled water (control). Analysis of variance (ANOVA) and also mean comparisons were accomplished using the general linear model (GLM) procedure. LSD procedure at a probability level of 0.05 was used to determine statistically significant differences among treatment means. Results and and DiscussionThe results showed that the highest total dry weight was obtained from the application of Arginine spraying (2330 kg ha-1), priming + spraying aspartic acid (2388 kg ha-1) and trade amino acid (2219 kg ha-1). The highest amount of catalase (CAT) activity was observed in the treatment of distilled water by foliar application and its least effective activity was observed in the application of Arginine as priming. The application of aspartic acid as acidic acid with 888.7 kg ha-2 produced the highest yield. As a result, it is more than three times the performance of using distilled water (control). The application of Arginine (555.1 kg ha-2), commercial amine (444.0 kg ha-2) and Proline (327.8 kg ha-2) were established in the next rank, respectively. According to the results of this study, amino acids can reduce the stress of heat. In the absence of amino acid, yield reduction will be higher. Although amino acids are a Nitrogen source, the routine concentrations involved in exogenous supply are so low that its positive effects can be attributable to an increase in Nitrogen availability. ConclusionAspartic acid and Arginine due to their role in the Nitrogen cycle and also, due to the fact that amino acids are the building blocks of proteins, improved lentil yield. Therefore, it is recommended to use amino acids to increase the yield of lentils. The application of aspartic acid via both priming and spraying is suggested as the best treatment.

Response of New Genotypes of Rapeseed (Brassica napus) to Late Season Withholding Irrigation under Semi-Arid Climate

Hamed Eyni Nargeseh; Majid AghaAlikhani; Amir Hosein Shirani Rad; Ali Mokhtasi-Bidgoli; Seyed Ali Mohammad Modares Sanavy

Volume 41, Issue 4 , March 2019, , Pages 55-68

https://doi.org/10.22055/ppd.2018.22672.1491

Abstract

Abstract Background and Objectives Water deficit stress is one of the most important environmental stresses which affect the crop production. Genetic improvement or application ... Read More Abstract Background and Objectives Water deficit stress is one of the most important environmental stresses which affect the crop production. Genetic improvement or application of drought tolerant genotypes is recommended to increase crop production under water restricted conditions. The objective of the current study is investigating the withholding irrigation effect in terminal stages of the growing season on agronomic performance of rapeseed new genotypes in a semi-arid climate. Materials and Methods The experiment was conducted during 2015-2016 growing season in Karaj, Iran. Experimental factors (two water irrigation regimes and 17 rapeseed genotypes) were investigated with factorial arrangement of treatments based on a randomized complete block design (RCBD) with three replications. In this study, several different traits including plant height, number of siliqueper plant, number of grain per silique, 1000-grain weight, grain yield, biomass, oil percentage and oil yield were measured. To determine the most tolerant genotypes, stress tolerance indices (SSI, TOL, STI and GMP) were calculated under stress (withholding irrigation from silique setting stage until the end of the growing season) and non-stress (normal irrigation) conditions. Also, agronomic water use efficiency (WUEagr) was calculated for both irrigation conditions. Results Mean comparison of the interaction between withholding irrigation and genotypes showed that the responses of genotypes were different in terms of plant height, number of siliqueper plant, number of grain per silique, 1000-grain weight, grain yield, biomass, and oil yield at irrigation different treatments. Finally under withholding irrigation treatment from silique setting stage until the end of the growing season, Lauren hybrid was identified as the superior genotype due to suitable agronomic traits such as plant height (158.9 cm), number of siliqueper plant (158.6), number of grain per silique(18.6), 1000-grain weight (3.44 g), biomass (15471 kg.ha-1), grain yield (3854.3 kg.ha-1), oil percentage (43.33%) and oil yield (1668.3 kg.ha-1). Based on the stress tolerance indices among 17 rapeseed genotypes, the most tolerant genotypes were Lauren, Zorica, Alonso and Zlanta. Finally with considering to WUEagr (Kg.ha-1.mm-1), Zorica (0.92), Artist and Lauren genotypes (0.88) had the highest WUEagr under normal irrigation conditions, while Alonso (0.86), Lauren (0.84) and KL3721 (0.82) had the highest WUEagr under withholding irrigation conditions. Discussion Generally in this study, the amount of the studied traits was decreased under conditions of withholding irrigation compared to the full irrigation. Yield components such as silique number per plant, grain number per silique and 1000-grain weight could be considered as key traits affecting rapeseed grain yield under withholding irrigation.

Investigating the Effects of Plant Density, Seed Inoculation with Bacteria and Different Nitrogen Fertilizing Methods on Yield, Yield Components and Essential Oil of Fennel (Foeniculum vulgare Mill.)

M. Delfieh; Seyed Ali Mohammad Modarres-Sanavy; R. Farhoudi

Volume 40, Issue 1 , June 2017, , Pages 111-121

https://doi.org/10.22055/ppd.2016.12436

Abstract

Background and Objectives Fennel is one the most important medicinal and aromatic plants which is widely used in food, medicine and cosmetic industries worldwide. This study was carried ... Read More Background and Objectives Fennel is one the most important medicinal and aromatic plants which is widely used in food, medicine and cosmetic industries worldwide. This study was carried out in order to investigate the effects of different nitrogen nutritional systems including chemical, organic and biologic ones at different plant densities on yield, yield components and seed essential oil content and yield of fennel in south western Iran climatic conditions. Materials and Methods To do this research, a field experiment was carried out in 2013-2014 agricultural season at Islamic Azad University of Shoushtar agricultural college in split plot design with 18 treatments in 4 replications based on completely randomized blocks design. Different nitrogen system treatments consisting of N1: Uniformly spreading urea fertilizer in the plot, half at planting time and other at stem elongation, N2: Uniformly spreading half of urea fertilizer in the plot at planting time and spraying the other half at stem elongation on fennel foliage, N3: cow manure, N4: Inoculation of fennel seeds with Azotobacter and Azospirillum, N5: Applying half of required nitrogen fertilizer from cow manure and other half from urea, N6: Applying half of required nitrogen fertilizer from cow manure + inoculation of fennel seeds with Azotobacter and Azospirillum were applied to the main plots. Three fennel densities consisting of FD1: 60 plant/m2, FD2: 80 plant/m2 and FD3: 100 plant/m2 were applied to subplots. Results Based on the results, utilization of the first integrated treatment which consisted of cow manure and urea as chemical fertilizer at 50:50 percent, along with using 100 plant per m2 as a proper crop density achieved production of 94.575 g/m2 seed yield containing 3.375 percent of essential oil. Other findings showed that Azotobacter+ Azospirillum had no positive effect on plant seed yield and essential oil. Discussions The findings of our study showed that replacing 50 percent of required nitrogen with cow manure in fennel could lead to a favorable quantitative and qualitative seed production as well as the treatments which use 100 percent of nitrogen as chemical fertilizers. It seems that nitrogen application with manure probably through increasing organic matter mineralization and mineral absorption, improved the effectiveness of manure. Therefore application of such a combination not only could lead to a desirable fennel quantity and quality, but also is more consistent with environment. Other findings of the present study showed that seed inoculation with bio-fertilizers (Azotobacter + Azospirillum) had no positive effects on plant seed yield and essential oil. For such a result, it could be said that climate and soil conditions and also plant species and varieties are important in bio-fertilizers usefulness and also in determining suitable bacteria species for application.

Articles in Press

Current Issue

Volume 46 (2023)

Volume 45 (2022)

Volume 44 (2021)

Volume 43 (2020)

Volume 42 (2019)

Volume 41 (2018)

Volume 40 (2017)

Volume 39 (2016)

Volume 38 (2015)

Volume 37 (2014)

Volume 36 (2013)

Volume 35 (2012)

Volume 34 (2011)

Volume 33 (2010)

Volume 32 (2009)

Author = Seyed Ali Mohammad Modares Sanavy

Effect of amino acids combination on the quantitative and qualitative characteristics of garlic (Allium Sativum L.)

Abstract

Effects of Application and Type of Amino Acids on the Activity of Antioxidant Enzymes, Proline Content and Seed yield of Lentil (Lens culinaris Medik.)

Abstract

Response of New Genotypes of Rapeseed (Brassica napus) to Late Season Withholding Irrigation under Semi-Arid Climate

Abstract

Investigating the Effects of Plant Density, Seed Inoculation with Bacteria and Different Nitrogen Fertilizing Methods on Yield, Yield Components and Essential Oil of Fennel (Foeniculum vulgare Mill.)

Abstract