| Author | Anita Gautam |
| Note | A thesis submitted in partial fulfillment of the requirements for the
degree of Master of Science in
Climate Change and Sustainable Development, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | Drought is a major limiting factor for Plant growth and production. Exogenous application
of silicon (Si) has been considered beneficial for improving crop tolerance to both biotic
and abiotic stresses. A pot experiment was conducted from November 2015 to March 2016
at Asian Institute of Technology, Thailand. The growth and yield of rice under water stress
as influenced by SI application was evaluated. The experiment was subjected to RCBD, as
a factoral scheme (2×3×5) with two rice varieties: Pathumthani 1 and RD 57, three soil
moisture levels (100%, 75% and 50 % FC) and five Si rates (0, 75, 150, 300, 600 kg Si ha-
1) with three replications. Water stress significantly reduced plant growth and yield
parameters of rice plants. Application of Si significantly increased plant height whereas
shoot dry matter accumulation was not influenced by Si application. Highest grain yield
was recorded at 75 kg Si ha-1(38.8%). Similarly, number of productive tillers, number of
filled grains per panicle and total grain yield were significantly increased by the application
of Si. Silicon content in above ground biomass was significantly reduced by water stress.
Further, application of silicon increased the Si content (shoot) in both rice varieties. From
our study we can say that the growth and yield of rice plants exposed to water stress can be
improved by application of silicon. |
| Year | 2016 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Climate Change and Sustainable Development (CC) |
| Chairperson(s) | Datta, Avishek ; |
| Examination Committee(s) | Shrestha, Rajendra Prasad ;Shrestha, Sangam ; |
| Scholarship Donor(s) | Asian Development Bank-Japan Scholarship
Program (ADB-JSP); |