Main reason behind the shedding of flower in cotton is__________________?

A. Low temperature
B. High temperature
C. Humidity
D. Cloudy day

Root rot of cotton is a_________________?

A. Bacterial disease
B. Viral disease
C. Fungal disease

Raising of only one crop in a year, when there is seasonal supply of water is called______________?

A. Monocropping
B. Monoculture
C. Specialized farming
D. Intensive cropping

Effects of allelopathic compound in the life cycle of plants cause inhibition of________________?

A. Seed deterioration
B. Seed germination
C. Seed swelling
D. Non of these

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

Allelopathy is an important component in the development of future integrated strategies for____________?

A. Soil management
B. Weed management
C. Water management
D. Non of these

Allclopatluc interactions in general and the allelochemicals in particular are viewed as an important tool for_______________?

A. Pest and insect management
B. Disease and pest management
C. Weed and pest management
D. Non of these

Plants which grow on dry region are____________________?

A. Xerophytes
B. Thermophytes
C. Hydrophytes
D. Haplophytes

Crop rotation means growing_________________?

A. Same craps
B. Growing green manures
C. Growing different crops
D. Growing fodder crops

Critical factors for crop production is________________?

A. Land
B. Water
C. Pure seed
D. Fertilizer