Mycorrhizal biotechnology has been used in rehabilitating degraded sites because Mycorrhiza enables the plants to ________.
- Resist drought and increase absorptive area
- Tolerate extremes of pH
- Resist disease infestation
Select the correct answer using the codes given below.
1
1 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3