Question
Consider the following: 1.  Birds 2. Â
Dust blowing 3. Rain 4. Wind blowing Which of the above spread plant diseases?Solution
Extensive and severe epidemics of plant diseases are mostly the results of wind transmission of the pathogens. Splashing rain drops mostly transmit the foliar diseases from leaf to leaf, from shoot to shoot and even from plant to plant in case of closely spaced crops. Birds play a minor role in disease transmission in plants by way of dispersal of seeds of higher flowering parasite etc. Thus, plant disease can spread by all of the mentioned agents.
Production of special crops in relatively large quantities for distant market is done in which type of gardening?
Broad bed and furrow system in groundnut is developed by
The upper part in the grafting process is termed as
The period over which irrigation water is to be supplied for the production of any crop is called _____
Giffin goods refers to
The scientific name of prickly pear is ____
Which type of antenna is found in honey bee?
Moisture content for safe storage of wheat, barley, maize is ____
Which of the following given options does not have a cell wall?
Crops like coffee, coconut and arecanut comes under which branch of horticulture?
