Assertion (A): Biological control developed for treatment of plant diseases.
Reason (R): Trichoderma are free living fungi common in root ecosystem.
Reason (R): Trichoderma are free living fungi common in root ecosystem.
Show Hint
- A and R are correct. R is the correct explanation of A.
- A and R are correct. R is not the correct explanation of A.
- A is correct but R is incorrect.
- A is incorrect but R is correct.
The Correct Option is A
Solution and Explanation
Biological Control in Plant Disease Management
Assertion (A): Biological control is a method developed to treat plant diseases by using natural organisms or substances to control pests or pathogens. Trichoderma, a genus of fungi, serves as an example of such biological control agents. (✔ Correct)
Reason (R): Trichoderma are free-living fungi commonly found in the root ecosystem of plants. They act as biocontrol agents by competing with harmful pathogens and promoting plant growth. (✔ Correct)
Since both statements are correct, and the reason correctly explains the assertion, the correct answer is:
(A)
Top Questions on Plant Anatomy
- Match the following
- AP EAPCET - 2025
- Botany
- Plant Anatomy
- Choose the incorrect statement among the following
- AP EAPCET - 2025
- Botany
- Plant Anatomy
- Each annual ring in dicot stem comprises
- AP EAPCET - 2025
- Botany
- Plant Anatomy
- Identify the wrongly matched one
- AP EAPCET - 2025
- Botany
- Plant Anatomy
- Choose the correct statements among the following
I. Epidermal cells have more cytoplasm and small vacuole.
II. Outer walls of guard cells are thick and inner walls are thin.
III. Presence of phloem on either side of xylem is seen in bicollateral vascular bundles.
IV. Trichomes of shoot system are multicellular.- AP EAPCET - 2025
- Botany
- Plant Anatomy
Questions Asked in AP EAMCET exam
The percentage error in the measurement of mass and velocity are 3% and 4% respectively. The percentage error in the measurement of kinetic energy is:
- AP EAMCET - 2024
- Projectile motion
- A → P is a first order reaction. The following graph is obtained for this reaction. (x-axis = time; y-axis = conc. of A). The instantaneous rate of the reaction at point C is
- AP EAMCET - 2024
- Chemical Kinetics
- If \( \alpha, \beta, \gamma \) are the roots of the determinant equation: \[ \begin{vmatrix} 1-x & -2 & 1
-2 & 4-x & -2
1 & -2 & 1-x \end{vmatrix} = 0 \] then \( \alpha \beta + \beta \gamma + \gamma \alpha \) is: If \( L, M, N \) are the midpoints of the sides PQ, QR, and RP of triangle \( \Delta PQR \), then \( \overline{QM} + \overline{LN} + \overline{ML} + \overline{RN} - \overline{MN} - \overline{QL} = \):
- AP EAMCET - 2024
- Geometry and Vectors
- In the ground state of hydrogen atom, electron absorbs 1.5 times energy than the minimum energy \( (2.18 \times 10^{-18} J)\) to escape from the atom. The wavelength of the emitted electron (in m) is \((m_e = 9 \times 10^{-31} kg)\)
- AP EAMCET - 2024
- Quantum Mechanics