Effects of yield promoting inputs on tomato production in tropical greenhouse | |
| Author | Parvin, Shahnaz |
| Call Number | AIT Thesis no.AE-08-28 |
| Subject(s) | Tomatoes--Tropics Greenhouse management--Tropics |
| Note | A thesis submitted in partial fulfillment of the re quirements for the degree of Master of Engineering in Agricultural Systems and Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. AE-08-28 |
| Abstract | Yield promoting inputs are often used beside usual fertigation system in greenhouse industry in tropics. Experiments were conducted in two seasons. In each season two greenhouses were used with three varieties of tomato namely; Cherry-TROY, Sida and FMTT-260. Three yield promoting inputs like Boom Flower, Biofertilizer and Growth Regulator were sprayed to study the effects of these inputs on yield, quality, agronomic and economic parameters. In marketable yield, no significant interaction was found between chemical application and the tomato varieties in both seasons. In second season, higher yield was recorded for Cherry and Sida whereas FMTT showed a reduction due to lots of undersized fruits which might be caused by the lower night temperature prevailing during the second season. Various quality parameters including color, firmness, Brix, fruit diameter, pH of tomato juice, shelf life and sensory evaluation were made. No significant difference was found between chemical application and tomato varieties for all of these quality parameters. Only among varieties significant difference was noticed due to individual varietal characteristics. Various agronomic parameters including number of leaves, clusters, flowers, plant height, leaf area index and dry matter were measured. All these parameters showed higher value in second season except leaf area index. There was no significant effect on these agronomic parameters due to chemical application on different varieties. Leachate properties including pH, EC and nutrient concentration (phosphorus and nitrogen) were measured where pH and EC values were found similar for both seasons. Both phosphorus and nitrogen concentrations were lower in leachate solution during second season. Comparing Control, Boom Flower application required a small extra amount, whereas Biofertilizer and Atonik required higher additional costs. Overall the second season (June-October) was found more favorable for production of tomatoes in tropical greenhouses compared to the first season (February-June). |
| Year | 2008 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. AE-08-28 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Salokhe, Vilas M.; |
| Examination Committee(s) | Jayasuriya, H. P. W.;Wattanaporn Meskuntavon;Soni, Peeyush; |
| Scholarship Donor(s) | The Royal Government of Netherlands; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2008 |