Agranal chloroplasts are found in _____

Sugarcane is a heavy feeder crop but higher doses of nitrogen during ripening stage, ____ the sucrose content in maturing cane.

System of Rice Intensification (SRI) method has been introduced from which country?

Who started to work on cereal rust in India?

The branch of biology developed to study chromosomes and its application in genetics is known as:

The difference between value in use and value in exchange is:

Which one of the following mineral elements plays an important role in biological nitrogen fixation:

The yearly sequence and spatial arrangement of crops or of crops and fallow on a given area is known as 

Soil microorganism plays very important role in enhancing the fertility status of the soil. The Earthworm used for vermicompositing is