Varietal Replacement

Varietal Replacement

 

the replacement of varieties presently in cultivation with new varieties providing greater yields and better products. Varietal replacement is one of the most effective ways of raising yield; for example, it can raise grain yields 4 quintals and more per hectare.

References in periodicals archive ?
Many orchard properties are undergoing changes due to varietal replacement, labor shortages, low prices, and trade barriers.
During an interview with journalists after a workshop on Rice Varietal Replacement Strategies, Dr Mohammed Bashir, Rice Breeder at NCRI said due to the rate at which at which rice is consumed in the country, the farmers' variety could not provide enough to meet the local demands.
The strategy to execute the planned Mission includes: raising Seed Replacement Ratio (SRR) with focus on Varietal Replacement; enhancing irrigation coverage under oilseeds from 26% to 36%; diversification of area from low producing cereals crops to oil seeds crops and inter-cropping of oilseeds with cereals/ pulses/sugarcane.
Second, it has been noted above that the rate of varietal replacement in farmers' fields in the Punjab is very slow by world standards--the average delay from varietal release to full adoption by farmers is about 10 years.