Agronomy MCQ Question and Answer | Agriculture MCQ Question

Varalaxmi is the world’s first interspecific, the tetraploid cotton hybrid was developed by Cotton Research Station, Dharwad, University of Agricultural Science, Bangalore in the year 1972. It shows 50% higher productivity than other varieties.

Mungbean shows an Epigeal type of germination. Epigeal is the botanical term that means that germination of seed takes place above the ground while hypogeal means under the ground germination.

SPAC is Soil Plant Atmosphere Continuum, is a unified system which is proposed by John Philip, 1966. It is the pathway for the movement of water from the soil through plants to the atmosphere ultimately, this movement is based on the higher water potential regions to the lower water potential region. In this water and energy transfer occurs from soil through plants to the atmosphere.

The Ganga and the Brahmaputra basins have the highest ground water potential basin in India. It is about 46% of the total replenishable groundwater resources.

Zinc is one of the essential nutrients required by almost all plants for their proper growth and development. Its deficiency can cause various other diseases, one of them being white bud disease in maize. The diseased plant show broadband of bleached tissues on each side of the midrib, starting from the base region.

Field capacity is considered as the water content of the soil after two to three days of rain or irrigation process when the extra water has been percolated by gravitational forces to the ground. It can also be called as water holding capacity of the soil. It is normally 0.033 MPa.

Wheat growth can be physiologically divided into several stages:
Germination or emergence, tillering, stem elongation, boot, heading, or flowering, and last one grain-fill or ripening.
Seedling is the first stage of growth in wheat that occurs after germination and begins when the first true leaves emerge.
CRI is the crown root initiation stage that mostly happens 21 days after sowing.
Tillering is lateral branches that happen 40 - 45 days after sowing.
The heading stage also known as ear emergence stage begins when the ear emerges from the flag leaf sheath and continues until the entire ear has emerged.
So, the correct sequence should be seedling, CRI, tillering followed by ear emergence.

Spikelet sterility in wheat is mainly caused because of deficiency of boron. Some climatic conditions like high humidity and low light intensity due to dense fog also affect the sterility of wheat.

The term ideotype was coined by Donald in 1968 which means biological model combining morphological and physiological traits that are thought to enhance genetic yield potential. The ideotype of rice is given by Yoshida.

Saccharum officinarum is one of the most productive and intensively cultivated varieties of sugarcane, originated in New Guinea. It is now cultivated worldwide for the production of sugar, ethanol and other products.