22 
The Colorado Experiment Station 
1. High individual plant yield 
2. Early maturity 
3. Uniform ripening of pods on the plant 
4. Freedom from disease 
To make a seed plat, the seed of each of these selected bean 
plants should be planted by itself in a row. These rows are really 
comparative tests of the value of the selections. The high-yielding 
rows which a£e produced represent the mother plants which it is de¬ 
sirable to keep. All the seed from high-yielding rows having other 
desirable characteristics should be saved. _ If one strain should prove 
to be very much better than all others, this should be saved for seed 
and increased to the fullest extent possible. In this way the entire 
bean acreage will soon be planted from this high-yielding, early-ma¬ 
turing, even-ripening, disease-free strain. 
Preliminary work with bean selection shows that it is easily 
possible to increase the yield 25 per cent by selection alone. To in¬ 
crease the yield this much would pay for all of the extra work of 
starting a seed patch and testing out in comparative tests the various 
selections, thus enabling the grower to pick out the highest yielding 
strain of his crop from which he may eventually plant his entire crop. 
It will pay to hand select seed to get seed of uniform marking, uni¬ 
form size and freedom from disease, even if time and conditions do 
not permit the better work of the selection of pure, high-yielding 
strains. 
A good field of dry-land pinto beans ready for harvest 
