Physiological response of onion plants to foliar application of putrescine and glutamine

Amin, A. A.; Gharib, Fatma A.; El-Awadi, Mohamed E.; Rashad, El-Sherbeny M.

doi:10.1016/j.scienta.2011.03.052

Cited by 93 publications

(99 citation statements)

References 26 publications

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“…This could be attributed to the fact that organic matter is vital for the production of plant dry matter, and the same goes for many amino acid compounds which regulate photosynthesis and plant production [12]. Amino acids are involved in the process of chlorophyll synthesis [13]. Results show that leaf area was increased by all treatments, and amino acids had a significant positive effect in this respect.…”

Section: Resultsmentioning

confidence: 99%

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Effects of Foliar Application Pure Amino Acid and Amino Acid Containing Fertilizer on Broccoli (Brassica oleracea L. var. italica) Transplants

Shekari¹,

Javanmardi²

2017

Adv Crop Sci Tech

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The greenhouse experiments were carried out to study the effects foliar application of L-cysteine, L-methionine and Aminoacid fertilizer (AA) on Broccoli (Brassica oleracea var. italica) transplants. L-cysteine, L-methionine and AA was applied at three concentrations, 0, 100 and 200 mg L -1 commencing from 20 days after the sowing. Physical and chemical properties of the transplants determined according to the methods described by Tabatabaee. Results showed that L-cysteine at concentrations of 100 and 200 mg L -1 increased the leaf area by 53% and 48%, while methionine and the amino-acid-bearing fertilizer, both at 200 mg L -1 , increased the leaf area by 59% and 48% respectively. These percentages are expressed in comparison to the control. L-cysteine at concentrations of 100 and 200 mg L -1 increased the fresh weight of shoots by 50% and 55%, respectively, while methionine at 100 and 200 mg L -1 increased the fresh weight of shoots by 55% and 60% respectively. The amino-acid-bearing fertilizer treatments at a concentration of 200 mg L -1 increased the shoot dry weight of Broccoli seedlings by 38%, L-cysteine at concentrations of 100 and 200 mg L -1 increased the root dry weight by 26% and 60%, methionine at 100 and 200 mg L -1 increased the root dry weight by 31% and 177%. The results showed that methionine at 200 mg L -1 increased chlorophyll by 61%. The amino-acid-bearing fertilizer at a concentration of 200 mg L -1 managed to increase the length of transplants by 30%, compared to the control. Methionine at 100 and 200 mg.L -1 increased the amount of nitrogen in transplanted Broccoli by 36% and 38%.

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Section: Resultsmentioning

confidence: 99%

“…Amino acids can be effective by entering biological cycles like citric acid [15]. The use of putrescine and glutathione increased leaf area in the onion plant [13]. Phenylalanine and tryptophan increases leaf area in Philodendron [16].…”

Section: Resultsmentioning

confidence: 99%

Effects of Foliar Application Pure Amino Acid and Amino Acid Containing Fertilizer on Broccoli (Brassica oleracea L. var. italica) Transplants

Shekari¹,

Javanmardi²

2017

Adv Crop Sci Tech

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“…It is known that phenolic compounds are derived from amino acids [13]. It has been reported that putrescine and glutathione had incremental effects on the phenolic content in onions [14].…”

Section: Phenolic Compoundsmentioning

confidence: 99%

“…The addition of nitrogen, however, caused all treatments to increase the acidity of tissues and this was also significantly different from the control group (P<0.01). Since amino acids can enter the citric acid cycle [14], it is highly probable that the influence on acid content happens through the citric acid cycle, thereby altering the acidity level of tissues. Furthermore, we observed that the level of ascorbic acid increased as another result of applying amino acids.…”

Section: Aciditymentioning

confidence: 99%

“…Arginine enhanced the yield of onions [16]. Foliar applications of putrescine and glutathione on onion plants have resulted in the same outcome [14]. While taking into account the aforementioned argumentations, it can be concluded that amino acids increase the plant's chlorophyll content and contribute to the saving of energy, thereby bolstering up the plant's productivity.…”

Section: Yieldmentioning

confidence: 99%

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Application of Cysteine, Methionine and Amino Acid Containing Fertilizers to Replace Urea: The Effects on Yield and Quality of Broccoli

Shekari¹,

Javanmardi²

2017

Adv Crop Sci Tech

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A greenhouse experiment was carried out to determine the influence of replacing 80% of urea in broccoli fertilization with L-cysteine and L-methionine foliar spray at two concentrations 100 and 200 mgL-1 and amino acid containing fertilizer (AA) at 750 and 1500 mgL-1 on yield, nitrate accumulation, dry weight of head, vitamin C, phenolic compounds and total acidity. Replacing 80% of urea with AA increased the total acidity significantly (P ≤ 0.05). Elimination of 80% urea but foliar spray of cysteine (100 and 200 mgL-1), methionine (200) the percentage of dry weight significantly (P ≤ 0.05). Urea (250 kg ha-1) plus amino acids and amino acid Alone in Comparison with control (just 50 kg ha-1 urea) increased significantly (P ≤ 0.05) Yield. The content of vitamin C, decrease significantly (P ≤ 0.05) by the urea (250 kg ha-1) application with amino acids. Application of amino acid containing fertilizer (750 and 1500 mgL-1) along with urea (250 kg ha-1) increased nitrate accumulation.

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Maximizing growth and productivity of onion (Allium cepa L.) by Spirulina platensis extract and nitrogen-fixing endophyte Pseudomonas stutzeri

Geries

Elsadany

2020

Arch Microbiol

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Physiological response of onion plants to foliar application of putrescine and glutamine

Cited by 93 publications

References 26 publications

Effects of Foliar Application Pure Amino Acid and Amino Acid Containing Fertilizer on Broccoli (Brassica oleracea L. var. italica) Transplants

Effects of Foliar Application Pure Amino Acid and Amino Acid Containing Fertilizer on Broccoli (Brassica oleracea L. var. italica) Transplants

Application of Cysteine, Methionine and Amino Acid Containing Fertilizers to Replace Urea: The Effects on Yield and Quality of Broccoli

Maximizing growth and productivity of onion (Allium cepa L.) by Spirulina platensis extract and nitrogen-fixing endophyte Pseudomonas stutzeri

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