scholarly journals The effect of seaweed extract on tomato plant growth, productivity and soil

2021 ◽  
Author(s):  
Hashmath Inayath Hussain ◽  
Naga Kasinadhuni ◽  
Tony Arioli
Keyword(s):  
Plant Growth ◽  
Tomato Plant ◽  
Root Zone ◽  
Soil Health ◽  
Dry Weight ◽  
Bacterial Count ◽  
Community Diversity ◽  
Seaweed Extract ◽  
Total Bacterial Count ◽  
Soil Biology

AbstractThis study investigated the effects of seaweed extract (SWE) made from the brown algae Durvillaea potatorum and Ascophyllum nodosum on plants and soil. The application of SWE to soil growing tomato plants showed dual effects. SWE comprehensively improved tomato plant growth (flower clusters, flower number, fruit number, root length, root and shoot dry weight, SPAD) and increased plant productivity (yield and quality). Similarly, SWE application effected soil biology at the soil root zone by increasing total bacterial count and available soil nitrogen and impacting bacterial community diversity with an increase in certain bacterial families linked to soil health. A broader understanding of the effects of SWE on the plant-soil ecosystem may offer breakthrough approaches for sustainable food production.

Culture of Hydrilla (Hydrilla verticillata) in Sand Root Media Amended with Three Fertilizers

Weed Science ◽  
1986 ◽  
Vol 34 (1) ◽  
pp. 34-39 ◽  
Author(s):  
David L. Sutton
Keyword(s):  
Plant Growth ◽  
Plant Tissue ◽  
Root Zone ◽  
Hydrilla Verticillata ◽  
Dry Weight ◽  
Pond Water ◽  
Sand Soil ◽  
Plant Weight ◽  
Root Media ◽  
Tuber Production

Hydrilla [Hydrilla verticillata(L.f.) Royle # HYLLI] was grown for 4 to 16 weeks in pans filled with either an organic muck-sand soil, sand, or sand mixed with Osmocote, Esmigran, and dolomite under outdoor conditions in plastic-lined pools with flowing pond water. Dry weight for plants cultured in sand plus the fertilizers was dependent on the concentration of fertilizer and was from 6 to 14 times that of plants cultured in sand alone. Dry weight was also higher for three treatments of sand amended with fertilizer than for plants cultured in the organic muck-sand soil. Water temperature for different growth periods influenced dry weight of hydrilla cultured with all three root media. Tuber production was independent of three levels of fertilizer for 16 weeks of plant growth, but plant weight was dependent on the concentration of nutrients in the root zone. Of nine plant tissue nutrients measured, only phosphorus in both the shoots and roots was dependent on the level of fertilizer in the root zone. This suggests that growth of hydrilla is controlled by nutrients in the root zone. The use of sand amended with various levels of fertilizers may be a way to simulate fertility levels of sediments as a method to study aquatic sites for their potential to support growth of hydrilla.

scholarly journals The Effect of Coconut Water (Cocos nucifera L.) and Atonik to The Growth of Tomato Plant (Lycopersicum esculentum Mill.)

2020 ◽  
Vol 7 (1) ◽  
pp. 25-30
Author(s):  
Intan Poespita Windiyani ◽  
Tundjung T. Handayani ◽  
Zulkifli Zulkifli ◽  
Bambang Irawan
Keyword(s):  
Plant Growth ◽  
Tomato Plant ◽  
Cocos Nucifera ◽  
Dry Weight ◽  
Coconut Water ◽  
Design Factor ◽  
Botany Department ◽  
Significance Level ◽  
Cocos Nucifera L ◽  
Levene Test

The purpose of this study was to find how the effects of coconut water plus atonic on tomato plant growth. The study was conducted from October to November 2019 at the Laboratory of Botany, Department of Biology FMIPA University of Lampung. The study was conducted in a 2x3 factorial experiment with a completely randomized design. Factor A is young coconut water with 3 levels of concentration i.e. 0% v/v, 25% v/v, and 50% v/v. Factor B is atonic with 2 concentration levels, namely 0% v/v and 10% v/v. As variables are high, fresh weight, dry weight, relative water content, and chlorophyll content of plants. Levene Test, Variance Analysis is carried out at a 5% significance level. Main effects and simple effects were analyzed by the Tukey test at 5% significance level. The results showed that the interaction between coconut water and atonic had a negative effect on the growth of tomato plants. The results of the study concluded that coconut water combine with atonic can not improve tomato plant growth.

Testing the ability of organic ligands and plant materials to reduce the toxic effects of aluminium in soils

2004 ◽  
Vol 55 (1) ◽  
pp. 13 ◽  
Author(s):  
Sahta Ginting ◽  
Bruce B. Johnson ◽  
Sabine Wilkens
Keyword(s):  
Plant Growth ◽  
Root Length ◽  
Root Zone ◽  
Acid Soil ◽  
Dry Weight ◽  
Organic Ligands ◽  
Surprising Result ◽  
Plant Materials ◽  
Soil Systems ◽  
Amended Soil

An acid soil from the Sedgwick region of central Victoria was modified to provide a range of aluminium (Al) concentrations in order to test whether incorporation of organic ligands, or plant material, could reduce plant-available (or 'reactive') Al in soils. Al concentrations in the soil were increased by addition of varying amounts of a solution of AlK(SO4)2, chosen after measurement of the adsorption of Al onto the soil. A similar study of citrate adsorption allowed estimation of the amount of citrate required to achieve a 1 : 1 Al : citrate ratio in the soil in order to test the effectiveness of organic ligands in alleviating Al toxicity. Citrate was found to decrease the level of reactive Al in the soil. Pot trials also showed that addition of citrate to Al amended soil caused some improvement in root length and dry weight of soybean plants (Glycine max) compared with the Al amended soil. Addition of oxalate also reduced the level of reactive Al but did not improve root growth. Incorporation of dried leaves from lucerne (Medicago sativa), rhubarb (Rheum rhubarbarum), oxalis (Oxalis pes-caprae), and soybean at application rates equivalent to 5 and 10 t/ha to a soil containing added Al tended to increase root length. The most surprising result was the relatively small effect of high Al concentrations on plant growth, with 2000 μm reactive Al reducing root length by only 50% after 15 days of growth. This is a much smaller reduction in root length than has previously been obtained in hydroponic systems with 500 μm reactive Al after 15 days growth (Ginting et al. 1998) and points to a major difference between plant growth trials in solution culture and soil systems. One possible explanation for this difference is that the roots are in contact with only a small volume of soil solution, and this can be modified by root exudates. Further research is required to test this hypothesis, which will require the development of a method of analysis for Al in soil systems that more accurately reflects reactive Al levels in the root-zone.

scholarly journals Effect of Powdered and Composted Meat Bones on the Growth and Yield of Water Spinach (Ipomoea aquatica)

2019 ◽  
pp. 1-10
Author(s):  
Badhon Ahmmed ◽  
Tamzid Bin Shafique ◽  
Shaikh Motasim Billah
Keyword(s):  
Plant Growth ◽  
Growth Parameters ◽  
Soil Health ◽  
Dry Weight ◽  
Soil Condition ◽  
Growth And Yield ◽  
Soil Conditions ◽  
Water Spinach ◽  
Ipomoea Aquatica ◽  
Number Of Leaves

For agriculture, the most important is the soil’s function as a base and medium for plant growth. The soil health and soil condition are important for plant growth. And the management of soil organic matter is an important part in case of managing soil health and maintaining soil conditions. The experiment was carried out in the field lab (Net House) of Soil, Water and Environment discipline, Khulna University, Bangladesh. Total 21 plastic pots were used to continue the experiment with 7 treatments. For the experiment, the meat bones were collected and used in the experimental pot along with soil in different doses. This research has revealed that meat bones both powdered and composted, has significantly increased (about 20-25%) the growth parameters of water spinach (Ipomoea aquatica) such as a number of leaves, shoot length, fresh weight, dry weight and moisture content. So, the application of powdered and composted meat bones in soil will contribute in the growth of water spinach (Ipomoea aquatica).

Regulation of soil water threshold on tomato plant growth and fruit quality under alternate partial root-zone drip irrigation

2020 ◽  
Vol 238 ◽  
pp. 106200 ◽  
Author(s):  
Liang-Zuo Shu ◽  
Rui Liu ◽  
Wei Min ◽  
Yao-sheng Wang ◽  
Yu Hong-mei ◽  
...  
Keyword(s):  
Plant Growth ◽  
Soil Water ◽  
Fruit Quality ◽  
Drip Irrigation ◽  
Tomato Plant ◽  
Root Zone

scholarly journals Effect of Biochar and PGPR on the Growth and Nutrients Content of Einkorn Wheat (Triticum monococcum L.) and Post-Harvest Soil Properties

Agronomy ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2418
Author(s):  
Fatih Çığ ◽  
Ferit Sönmez ◽  
Muhammad Azhar Nadeem ◽  
Ayman El Sabagh
Keyword(s):  
Plant Growth ◽  
Soil Properties ◽  
Germination Rate ◽  
Soil Health ◽  
Dry Weight ◽  
Plant Growth Promoting Rhizobacteria ◽  
Nutrient Content ◽  
Organic Soil ◽  
Fresh Weight ◽  
Einkorn Wheat

Limited availability of nutrients to crops is a major agricultural concern. Deteriorated soil health and poor fertility status decrease the bioavailability of essential nutrients to the plants. Consequently, organic soil amendment biochar is gaining attention due to its potential benefits. Rhizobacterial inoculation, are also documented as an effective technology for mobilization of immobile nutrients in soil. However, limited literature is available on combined use of rhizobacteria and biochar. Therefore, this study was carried out to examine the changes in the nutrient content of einkorn wheat and the change in some soil properties during the application of plant growth-promoting rhizobacteria (PGPR) with biochar. Four doses of biochar (0, 2.5, 5, and 10%) were applied with and without PGPR in the study. Biochar increased the growth criteria such as plant fresh weight (PFW), plant dry weight (PDW), root fresh weight (RFW), root dry weight (RDW), number of tillers, germination rate (GR) and potassium (K), calcium (Ca), sodium (Na), iron (Fe), copper (Cu), zinc (Zn), manganese (Mn), and nickel (Ni) elements. While PGPR application increased soil pH, dry and fresh weight of root, R/S, K, Ca, Mg, Fe, and Ni contents, and it caused a decrease in PH, PFW, tillers, GR, P, Cu, and Zn values. Combined biochar applications and PGPR had a significant effect on the pH, RFW, R/S, P, Na, and Cu. In conclusion, the combination of biochar and PGPR applications has shown a positive effect in terms of soil properties, plant growth, and element contents of einkorn wheat.

scholarly journals Root Zone Temperature as Modified by Plastic Mulches Affect the Appearance of First Systemic Symptoms of Tomato Spotted Wilt and Fruit Yield in Tomato

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1005E-1006
Author(s):  
Juan C. Diaz-Perez ◽  
Ron Gitaitis ◽  
Bikash Mandal
Keyword(s):  
Plant Growth ◽  
Tomato Plant ◽  
Root Zone ◽  
Fruit Yield ◽  
Growth And Yield ◽  
Plastic Mulch ◽  
Root Zone Temperature ◽  
Tomato Spotted Wilt ◽  
The Mean ◽  
Zone Temperature

Tomato spotted wilt (TSW) is a serious constraint to tomato production in various regions of the world. The effect of TSW on tomato yield is largely influenced by time of infection. Early infection usually results in severe stunting of the seedling and even death of the plant. Plastic mulches have been found to affect both the incidence of TSW, and plant growth and yield of tomato. The objective of this study was to determine the effect of root zone temperature (RZT) as affected by plastic mulch on the timing of appearance of first TSW symptoms, vegetative top fresh weight (FW) and fruit FW in tomato. Under natural TSW infection as well as in artificially inoculated plants, vegetative top FW and fruit FW were both linearly related with number of days after transplanting (DAT) the plants were free from TSW symptoms. The plants grown on black mulch during the fall showed earlier appearance of TSW symptoms, and had significantly reduced vegetative growth and fruit yields. The mean RZT during the first 42 DAT—the time before the plants reached full canopy closure—significantly affected the timing of first appearance of TSW symptoms, tomato plant growth and fruit yield. Vegetative top FW (optimal RZT = 24.1 °C) and fruit FW (26.9 °C) fitted the quadratic relationships with the mean RZT during the first 42 DAT. In conclusion, utilization of plastic mulches that created conditions of RZT stress, particularly heat stress, resulted in reduced plant growth and yield and may predispose the plants to earlier expression of TSW symptoms compared to plants grown under RZTs more favorable to tomato plant growth.

scholarly journals Efficacy of vermicompost and/or plant growth promoting bacteria on the plant growth and development in gladiolus

2019 ◽  
Vol 25 (2) ◽  
pp. 180-188
Author(s):  
Fazilet Parlakova Karagoz ◽  
Atilla Dursun ◽  
Nasibe Tekiner ◽  
Raziye Kul ◽  
Recep Kotan
Keyword(s):  
Plant Growth ◽  
Renewable Resources ◽  
Growth And Development ◽  
Root Zone ◽  
Growth Promotion ◽  
Plant Root ◽  
Dry Weight ◽  
Good Choice ◽  
Plant Growth Promoting Bacteria ◽  
Plant Growth And Development

The use of environmental and sustainable ornamental flower production practices with renewable resources has drawn worldwide interest. One of these renewable resources is vermicompost (earthworm castings). In recent years, increasing demand for improving environmental quality have focused on the importance of Plant Growth Promotion Bacteria (PGPBs) in agriculture. Vermicomposts also help microbial agents function effectively in soil. In this study, a total of six treatments [A: PGPB formulation, B: Not autoclaved vermicompost, C: Autoclaved vermicompost, D: Not autoclaved vermicompost+PGPBs, E: Autoclaved vermicompost+PGPBs, F: Control (untreated bacteria and vermicompost)] were tested for their effects on the plant growth and development parameters in gladiolus (Gladiolus grandiflorus L. ‘Red Beauty’) in greenhouse condition. Vermicompost was added to the related pots by dissolving in water. After the addition of vermicompost, PGPB formulation was given immediately to related pots. All the treatments were applied to soil once in three leaf stage, close to the plant root zone. Parameters in terms of yield and quality attributes of plant and corm were determined and analyzed. The treatment A increased in plant height of gladiolus of 24.55% rate. The earliest times to flowering was determined in E application (100.48 day), which also increased in corm diameter with rate of 17.41% and number of corms and cormels with rate of 151.83% according to F application. Results indicated that the treatment E promoted overall better performance as compared to other treatments diameter of flowers for number of leaves per plant, number of florets per spike, stem diameter, spike length, fresh and dry weight of flowers, the number and diameter of corm. Autoclaved vermicompost can be good choice in gladiolus cultivation but it should be enriched with PGPB.

Effect of rhizobacteria strains on the induction of resistance in barley genotypes against Cochliobolus sativus

2020 ◽  
Vol 13 (2) ◽  
pp. 83-92 ◽  
Author(s):  
A. Adam
Keyword(s):  
Plant Growth ◽  
Pseudomonas Putida ◽  
Growth Parameters ◽  
Disease Incidence ◽  
Dry Weight ◽  
Cochliobolus Sativus ◽  
Resistance Level ◽  
Wet Weight ◽  
Number Of Leaves ◽  
Barley Genotypes

SummaryEnhancement of the resistance level in plants by rhizobacteria has been proven in several pathosystems. This study investigated the ability of four rhizobacteria strains (Pseudomonas putida BTP1 and Bacillus subtilis Bs2500, Bs2504 and Bs2508) to promote the growth in three barley genotypes and protect them against Cochliobolus sativus. Our results demonstrated that all tested rhizobacteria strains had a protective effect on barley genotypes Arabi Abiad, Banteng and WI2291. However, P. putida BTP1 and B. subtilis Bs2508 strains were the most effective as they reduced disease incidence by 53 and 38% (mean effect), respectively. On the other hand, there were significant differences among the rhizobacteria-treated genotypes on plant growth parameters, such as wet weight, dry weight, plant height and number of leaves. Pseudomonas putida BTP1 strain was the most effective as it significantly increased plant growth by 15-32%. In addition, the susceptible genotypes Arabi Abiad and WI2291 were the most responsive to rhizobacteria. This means that these genotypes have a high potential for increase of their resistance against the pathogen and enhancement of plant growth after the application of rhizobacteria. Consequently, barley seed treatment with the tested rhizobacteria could be considered as an effective biocontrol method against C. sativus.

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