Step 1: Understanding the Concept:
The Transfer of Technology (TOT) model describes the systematic process through which new agricultural discoveries are developed, shared, and implemented in the field.
It views agricultural development as a coordinated system involving research, extension, and farming.
Step 2: Detailed Explanation:
Let us analyze the three core components of the classic agricultural knowledge and information system:
1. (A) Technology Generating System (TGS):
This component consists of agricultural universities, research stations, and laboratories where scientists develop new technologies, such as high-yielding seeds, biological control agents, or efficient machinery.
Thus, (A) is correct.
2. (D) Technology Disseminating System (TDS):
This component includes extension agencies, non-governmental organizations (NGOs), and corporate extension divisions.
These agencies serve as intermediaries, translating and communicating scientific findings into practical advice for farming communities.
Thus, (D) is correct.
3. (E) Technology Practicing System (TPS):
This component consists of the farmers, farm women, and rural entrepreneurs who implement these technologies in their daily operations.
Their feedback helps guide researchers in developing more relevant, field-ready solutions.
Thus, (E) is correct.
The other options listed (B and C) are general descriptions, not recognized structural components of the formal TOT framework.
Step 3: Final Answer:
The systems involved in the transfer of technology are (A), (D), and (E) only.
This corresponds to Option (D).