The harmful influence of one living plant on another living plant by the secretion of a toxic substance is called________________?

Related Mcqs:

Gassypium arborium is__________________?

A. Tetraploid B. Diploid C. Triploid D. Haploid...

Prescribed germination percentage of foundation seed of ground nut is_________________?

A. 70 B. 20 C. 85 D. 90...

Use of tetrazolium staining for assessment of seed quality was suggested by________________?

A. Woodstock (1973) B. Moore (1973) C. Maguire (1962) D. Germ (1950)...

Hot with a cool winter is___________________?

A. Temperature B. Arid C. Subtropical D. None of the above...

The soil are contains__________________?

A. Less oxygen as compared 10 atmosphere B. More carbon dioxide as compared to atmosphere C. Both a & b D. None of the above...