Question

The easiest way to improve the denuded forests of teak in India is to
A. Apply mycorrhiza
B. Apply fertilizer
C. Add bacterial culture
D. Use green algae

Answer 1

Hint: It is the mutual symbiotic Association between a fungus and the plant. Water as well as nutrient availability has to be ensured for tropical deciduous trees. Teak soil is deep, well-drained, alluvial with high calcium, organic matter, and other elements. Biofertilizers can be added to enhance the rate of absorption of nutrients from the soil.

Complete answer:
-The distribution, extent, and growth performance of teak is influenced to a considerable degree by soil drainage and its adequacy. Teak is susceptible to poor drainage conditions.
-To improve denuded forests of teak, biofertilizers are added so as to ensure the availability of elements like calcium and phosphorus.
-VAM or Vesicular arbuscular mycorrhiza occurs between certain phycomycetes fungi and angiosperm roots which is formed by the symbiotic association and is used as a biofertilizer.
-VAM has the ability to dissolve phosphates found in abundance. It provides plants with the necessary strength to resist disease germs and unfavorable weather conditions.
-It increases the number of trace elements and ensures water availability.
-These fungi generally colonize the root system of the host plant.
So the correct answer is “Apply mycorrhiza.”

Additional Information:
-Mycorrhizae are very efficient in creating a vast connection between roots and soil.
-It allows the fungi to uptake nutrients and increases the surface area of roots. In return, plants provide carbohydrates that these fungi require to survive.
-They are mixed with seed before sowing.

Note: VAM is an eco friendly biofertilizer used for many bowls of cereal, vegetables, plantation crops, and ornamental plants. Teak has high oil content, giving it the highest decay resistance among natural wood products.