Q397. Which one of the following is a useful functional association between fungi and the roots of higher plants?

Which one of the following organisms can serve as a biofertilizer for rice crops?

Lichens, which are capable of initiating ecological succession even on a bare rock, are actually a symbiotic association of

Mycorrhizal biotechnology has been used in rehabilitating degraded sites because mycorrhiza enables the plants to 1. Resist drought and increase absorptive area

Consider the following organisms: 1. Agaricus 2. Nostoc 3. Spirogyra Which of the above is/are used as biofertilizer/biofertilizers?

Consider the following: 1. Photosynthesis 2. Respiration 3. Decay of organic matter 4. Volcanic action Which of the above add carbon dioxide to the c

Given below are the names of four energy crops. Which one of them can be cultivated for ethanol?

Some species of plants are insectivorous. Why?

Mon 863 is a variety of maize. It was in the news for the following reason:

Though coffee and tea both are cultivated on hill slopes, there is some difference between them regarding their cultivation. In this context, consider

With reference to soil conservation, consider the following practices: 1. Crop rotation 2. Sand fences 3. Terracing 4. Wind breaks Which of the above

Other than Jatropha curcas, why is Pongamia pinnata also considered a good option for the production of bio- diesel in India? 1. Pongamia pinnata grow

In making the saffron spice, which one of the following parts of the plant is used?