- Varietal Replacement Rate (VRR) is one of the important factors in realizing higher crop productivity.
- The pace of progress in food production largely depends upon the progress of seed programmes that are able to supply good quality seed of high yielding varieties with superior genetics.
- Perusal of statistics suggest that, across the crops, the pace of VRR was being highest in wheat followed by mungbean, chickpea, soybean, rapeseed & mustard, rice and pigeonpea.
- In wheat, the average (3 years, 2017-18 to 2019-20) share of varieties, notified during the last five years and ten years in total breeder seed indent were 45.3 % and 74.0 %, respectively.
- Among pulses, mungbean has the share of 16.9 % and 64.4 % w.r.t. varieties, notified during the last five years and ten years to total breeder seed indent, respectively.
- While in chickpea, the share of varieties notified during the last five years is 28.4%, indicating better VRR. In general, the pace of VRR among wheat, chickpea and soybean was being found satisfactory.
Varietal Replacement Rate (VRR) among major field crops
|No. of varieties in seed chain|| |
Total indent (q)
|Varieties < 5 years old||Varieties < 10 years old|
|No’s||Indent (q)||% share in total indent||No’s||Indent (q)||% share in total indent|