A. Photosynthesis
B. aeration
C. Nitrogen fixation
D. Respiration
Related Mcqs:
- Root nodules in plant help in__________________?
A. Photosynthesis
B. Aeration
C. Nitrogen fixation
D. Respiration - Allelopathy interaction between plants playa crucial role in___________________?
A. Ecosystems
B. Community
C. Both a and b
D. non of there - Root rot of cotton is a_________________?
A. Bacterial disease
B. Viral disease
C. Fungal disease - Annual rye grass releases a chemical through its root that prevents________________?
A. Crop seeds
B. weed seed
C. Both a and b
D. non of these - The root of cotton plant goes up to depth of_________________?
A. 2-3 ft
B. 4-6 ft
C. 8-10 ft
D. non of these - Causal organism of root rot of cotton is_____________________?
A. Rhizoeionia solani
B. Rhizoctonia bataticola
C. Both of them - Part of embryonic axis which develops into root is called___________________?
A. Plumule
B. Radicle
C. Coleoptile
D. Coleorluza - Tillage is field operation which help in cutting, loosening and inverting the soil for_________________?
A. Fertilization
B. Irrigation
C. Seed bed preparation
D. Transplantation - Plants which grow on dry region are____________________?
A. Xerophytes
B. Thermophytes
C. Hydrophytes
D. Haplophytes - The plants which, grow neither in dry nor in wet condition are_______________________?
A. Xerophytes
B. Amphibiophytes
C. Mesophytes
D. Hydrophytes
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