Breeding of Vegetable, Spice and Tuber crops (2+1)

Procedure for Single Seed Descent Method

• Procedure
  

Single Seed Descent (SSD) Method includes stages as described below

 

Step	Details
Hybridization	Crossing of selected parents.
F1 generation	F1 seeds grown and bulk harvested.
F2 generation	F2 seeds grown. One seed from each plant is selected randomly and mixed.
F3 generation	F3 seeds are grown and harvested as above.
F4 and F5 generation	The similar procedure as above is carried out.
F6 generation	F6 seeds are planted. Selection for superior plants is conducted and selected ones are harvested separately. Number of plants could range from150 to 500.
F7 generation	The main point in this step is individual plant progenies are grown and selected progenies are harvested in bulk.
F8 generation	Preliminary yield trials and quality tests are conducted.
F9 to F10 or F13 generation	Co-ordinated yield trials and tests for resistance and quality are conducted.
F11 of F14 generation	Seed multiplication for distribution