Effect of a Seaweed Extract on the Productivity of 'de Nules' Clementine Mandarin and Navelina Orange

Fornés, F.; Sánchez-Perales, Manuel; Guardiola, J. L.

doi:10.1515/bot.2002.051

Cited by 119 publications

(72 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These results suggest that seaweed extract may have the ability to improve stress tolerance [44] [45] by increasing nutrient uptake from the soil [46]. The beneficial effect of seaweed extract may be the result of many components working synergistically at different concentrations [47] especially those derived from Ascophyllum nodosum, which were reported to have high concentrations of total phenolics, a complex group known for its strong chelating activities [48] [49].…”

Section: Plant Tissue Chemical Characteristicsmentioning

confidence: 99%

Effect of Plant Growth Stimulants on Alfalfa Response to Salt Stress

El-Sharkawy¹,

Al-Shal²,

Missaoui³

2017

View full text Add to dashboard Cite

Salinity is a major impediment to crop production. This study was undertaken to compare the effect of seaweed extract, humic acid, and potassium sulfate nanoparticles in alleviating salt stress in Alfalfa (Medicago sativa L.). Seeds of ten alfalfa genotypes were germinated in a growth chamber at five salt concentrations (0%, 0.5%, 1.0%, 1.5%, and 2.00%). Salt concentrations above 1% reduced seed germination by more than 70% in most genotypes. One salt tolerant genotype (Mesa-Sirsa) and one salt sensitive (Bulldog 505) were selected and planted in greenhouse pots containing 2 kg of sand and subjected to two salt levels (10 and 15 dS·m . Plant biomass was reduced under both salt concentrations in both genotypes, with a greater magnitude in the salt sensitive genotype. Application of seaweed extract resulted in higher relative water content and proline under both salt concentrations (10 and 15 dS·m −1 ) in the salt sensitive genotype, and lower electrolyte leakage in both salt tolerant and salt sensitive genotypes, under both salt concentrations. Seaweed extract also resulted in higher catalase and SOD activities in both genotypes under 10 dS·m −1 . Catalase and SOD activities were associated with significantly (p < 0.01) reduced electrolyte leakage and increased shoot dry weight. Overall, seaweed extract seemed to have a positive effect in alleviating salt stress in alfalfa.

show abstract

Section: Plant Tissue Chemical Characteristicsmentioning

confidence: 99%

Effect of Plant Growth Stimulants on Alfalfa Response to Salt Stress

El-Sharkawy¹,

Al-Shal²,

Missaoui³

2017

View full text Add to dashboard Cite

show abstract

“…The mechanisms by which MBS affect cell metabolism are mainly through the physiological action of major and minor nutrients, amino acids, vitamins, and also cytokinins, auxin, and absicisic acid (ABA)-like growth substances (Ördög et al 2004;Stirk et al 2003;Durand et al 2003;Crouch and van Staden 1993;Crouch et al 1992). Therefore, their effect is a result of many components that may work synergistically at different concentrations, although the mode of action of seaweed extracts still remains quite unknown (Vernieri et al 2005;Fornes et al 2002). In recent years, MBS have gained importance due to their potential use in organic and sustainable agriculture, especially in viticulture, as a means to avoid excessive fertilizer applications and to improve mineral absorption, both through leaves and roots.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of ammonium and potassium root influxes by the application of marine bioactive substances positively affects Vitis vinifera plant growth

et al. 2007

View full text Add to dashboard Cite

The enhancing effect of three marine bioactive substances (MBS) -EXT1116, NA9158 and 251104 -on the absorption of ammonium and potassium by the root system and the growth of potted grapevine (Vitis vinifera L.) plants is reported. Root ion influxes were determined in vivo by the non-invasive vibrating probe technique. Treatment with MBS generally enhanced nutrient absorption only in the root region between 0.8 and 1.7 mm from the root apex. Among the three substances tested, EXT1116 was the most effective in terms of enhancing the absorption of both ions, with significantly higher values than those of the other two substances and the control. NA9158 and 251104 were more effective in improving ammonium absorption than potassium absorption, while NA9158 was the most effective MBS in enhancing both biomorphometric parameters (shoot length, number of leaves, visual assessment of root system) and dry weight. Based on these results, we suggest that a combination of NA9158 and EXT1116 may be useful in enhancing plant growth by combining the capacity of NA9158 to increase root biomass and that of EXT1116 to enhance mineral absorption.

show abstract

“…Rumput laut sesungguhnya telah lama digunakan secara langsung sebagai kondisioner tanah maupun pupuk di berbagai wilayah pesisir di dunia (Haslam & Hopkins, 1996;Cocozza et al, 2011), dan ekstrak rumput laut juga telah banyak dipasarkan sebagai bahan tambahan pada pupuk tanaman yang manfaat serta keuntungan penggunaannya telah banyak dilaporkan (Fornes et al, 2002;Padhi & Swain, 2006;Sivansankari et al, 2006;Prithiviraj, 2009;Sedayu et al, 2013). Selain banyak mengandung mineral-mineral penting dari laut yang dibutuhkan oleh tanaman, rumput laut juga memiliki kandungan hormon pemacu tumbuh yang telah terbukti mampu meningkatkan pertumbuhan tanaman maupun hasil panen (Fornes et al, 2002;Padhi & Swain, 2006;Sivansankari et al, 2006;Prithiviraj, 2009).…”

Section: Pendahuluanunclassified

“…Selain banyak mengandung mineral-mineral penting dari laut yang dibutuhkan oleh tanaman, rumput laut juga memiliki kandungan hormon pemacu tumbuh yang telah terbukti mampu meningkatkan pertumbuhan tanaman maupun hasil panen (Fornes et al, 2002;Padhi & Swain, 2006;Sivansankari et al, 2006;Prithiviraj, 2009). Tidak seperti halnya pupuk kimia, ekstrak yang terbuat dari rumput laut dapat terdegradasi secara alami, tidak beracun, tidak mengkontaminasi, dan aman terhadap manusia dan hewan (Dhargalkar & Pereira, 2005).…”

Section: Pendahuluanunclassified

Pupuk Cair dari Rumput Laut Eucheuma cottonii, Sargassum sp. dan Gracilaria sp. Menggunakan Proses Pengomposan

Sedayu¹,

Erawan²,

Assadad³

2014

JPBKP

View full text Add to dashboard Cite

ABSTRAKPembuatan pupuk organik cair berbahan dasar rumput laut untuk mendapatkan pupuk yang kaya kandungan hormon pemacu tumbuh (HPT) telah dilakukan dengan teknik pengomposan. Tiga jenis rumput laut segar yaitu: Eucheuma cottonii, Sargassum sp. dan Gracilaria sp. dikompos (semi-anaerob) selama 30 hari menggunakan drum komposter, dengan ditambahkan bakteri starter komersial dan ikan rucah untuk mempercepat proses penguraian serta menambah unsur hara pupuk cair yang dihasilkan. Pupuk cair (lindi) yang dihasilkan kemudian dianalisis senyawa HPT-nya, meliputi: auksin, giberelin dan sitokinin, serta unsur hara makro dan mikronya. Selanjutnya, pupuk cair diujicobakan terhadap tanaman terung (Solanum melongena) dan tomat (Lycopercisum esculentum). Pupuk organik cair (lindi) hasil proses pengomposan terbukti mengandung senyawa HPT yang tinggi, yaitu: auksin (144-1128 ppm), giberelin (130-1552 ppm), dan sitokinin yang terdiri dari kinetin (58-65 ppm) dan zeatin (65-86 ppm). Sedangkan masing-masing kandungan tertinggi dari senyawa tersebut berturut-turut didapatkan dari rumput laut yang berasal dari E.cottonii, Gracilaria sp. dan Sargassum sp. Jumlah kandungan HPT tersebut lebih tinggi dibandingkan dengan jumlah yang terkandung dalam pupuk cair rumput laut komersial, namun unsur hara makro dan mikro yang terkandung masih lebih rendah dari standar pupuk cair organik yang dipersyaratkan. Ujicoba pupuk cair terhadap tanaman terung dan tomat menunjukkan pertumbuhan tanaman yang lebih cepat dibandingkan kontrol. KATA KUNCI:hormon pemacu tumbuh, pupuk organik cair, pengomposan, rumput laut GPH, i.e. auxin (144-1128GPH, i.e. auxin (144- ppm), giberelin (130-1552, and cytokinin which was consist of kinetin (58-65 ppm) and zeatin (65-86 ppm) ABSTRACT Effort to obtain organic liquid fertilizers seaweed containing high growth promoting hormones (GPH) has been carried out using composting technique. Fresh seaweeds, Eucheuma cottonii, Sargassum sp., and Gracilaria sp. were composted in semi-anaerobic condition for 30 days in compost drum. A comercial bioactivator and minced trash fish were added in order to boost the fermentation process as well as to improve the nutrient elements of the fertilizers. The organic liquid fertilizers produced were then analysed for their GPH contents, and their macro and micro nutrients. Afterwards, the fertilizers were tested to the eggplant (Solanum melongena) and tomato (Lycopercisum esculentum) plants. The results showed that the liquid fertilizers contained high amount of

show abstract

Effect of a Seaweed Extract on the Productivity of 'de Nules' Clementine Mandarin and Navelina Orange

Cited by 119 publications

References 11 publications

Effect of Plant Growth Stimulants on Alfalfa Response to Salt Stress

Effect of Plant Growth Stimulants on Alfalfa Response to Salt Stress

Enhancement of ammonium and potassium root influxes by the application of marine bioactive substances positively affects Vitis vinifera plant growth

Pupuk Cair dari Rumput Laut Eucheuma cottonii, Sargassum sp. dan Gracilaria sp. Menggunakan Proses Pengomposan

Contact Info

Product

Resources

About