نوع مقاله : علمی - پژوهشی
نویسندگان
1 دانشجوی دکتری زراعت، گروه زراعت ، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران، ایران
2 استاد، گروه زراعت، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران، ایران
چکیده
چکیده
به منظور مطالعه اثر اسیدهای آمینه مختلف روی عملکرد و صفات بیوشمیایی عدس، آزمایشی در سال زراعی 1397 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه تربیت مدرس بهصورت آزمایش فاکتوریل در قالب طرح بلوکهای کامل تصادفی در سه تکرار اجرا شد. عوامل مورد بررسی شامل نحوه کاربرد آمینواسیدها در سه سطح بذرمال، محلولپاشی و بذرمال + محلولپاشی بهعنوان عامل اول و کاربرد انواع آمینواسیدها در پنج سطح آرژنین، آسپارتیک اسید، پرولین، اسیدآمینه تجاری پروآمین و آبمقطر (شاهد) بهعنوان عامل دوم در نظر گرفته شد. مقدار مصرف اسیدهای آمینه یک گرم در لیتر بود. نتایج نشان داد بیشترین وزن خشک کل بهترتیب از تیمارهای بذرمال و محلوپاشی آسپارتیک اسید (2388 کیلوگرم در هکتار)، محلولپاشی آرژنین (2330 کیلوگرم در هکتار) و محلولپاشی اسیدآمینه تجاری پروآمین (2219 کیلوگرم در هکتار) بهدست آمد. بیشترین میزان فعالیت آنزیم کاتالاز در تیمار استفاده از آبمقطر بهصورت محلولپاشی و کمترین فعالیت آن در کاربرد آرژنین بهصورت بذرمال مشاهده شد. کاربرد اسیدآمینه آسپارتیک اسید با8/718 کیلوگرم در هکتار بیشترین عملکرد را تولید کرد که بیش از سه برابر عملکرد حاصل از استفاده از آبمقطر (شاهد) بود. کاربرد آرژنین (1/555 کیلوگرم در هکتار)، اسیدآمینه تجاری پروآمین (5/444 کیلوگرم در هکتار) و پرولین (8/327 کیلوگرم در هکتار) بهترتیب در رتبههای بعدی قرار گرفت. کاربرد آسپارتیک اسید بهصورت بذرمال و محلولپاشی با بیشترین عملکرد بهعنوان تیمار برتر معرفی میشود.
کلیدواژهها
موضوعات
عنوان مقاله [English]
Effects of Application and Type of Amino Acids on the Activity of Antioxidant Enzymes, Proline Content and Seed yield of Lentil (Lens culinaris Medik.)
نویسندگان [English]
- Ali Heidarzadeh 1
- Seyed Ali Mohammad Modarres-Sanavy 2
1 Ph.D. Student of Agronomy, Department of Agronomy, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
2 Professor, Department of Agronomy, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
چکیده [English]
Abstract
Introduction
Lentil 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 Methods
The 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 Discussion
The 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.
Conclusion
Aspartic 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.
کلیدواژهها [English]
- Arginine
- Aspartic acid
- Catalase
- Legume
- Proline
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