ANNUAL REPORT, 1930 265 



does not appear to be any visible difference between tlie remaining plots. 



The rose plots which received manure and peat, superphosphate and 

 peat, and manure and superphosphate have produced stronger plants and 

 have given a few more blooms per plant during the month of November. 



Definite conclusions cannot yet be drawn from the experiments, since 

 the work has been in progress for a comparatively short time. 



The following table shows the various plot treatments. 



Plot No. Treatment 



1 Superphosphate 

 Manure 



2 Manure 

 Peat 



3 Superphosphate 

 Peat 



4 Nitrate of Soda 

 Superphosphate 

 Muriate of Potash 



5 Nitrate of Soda 

 Superphosphate 

 Muriate of Potash 



6 Guano 

 Superphosphate 

 Muriate of Potash 



7 Fish 

 Superphosphate 

 Muriate of Potash 



15 Nitrate of Soda 



8 Fish Basic Slag 



Bone Muriate of Potash 



Muriate of Potash Swamp Peat 2:1 



Breeding Snapdragons for Varietal Improvement and Disease Resistance. 



(H. E. White, Waltham). The work on the development of rust-resistant 

 varieties of snapdragons for commercial use was started in Jime, 1930. 

 Twelve rust-resistant strains, obtained from tlie Purdue University Agri- 

 cultural Experiment Station, were planted in the field among ten garden 

 varieties. By August 12 the garden varieties were destroyed by rust, 

 whereas seven of the twelve resistant strains produced thirty plants that 

 were entirely free from the disease. Since these strains do not possess 

 flower color and length of stem desirable in commercial varieties, it will 

 be necessary to breed plants having the desired commercial qualities and 

 the rust-resistant characters. Breeding work was not done in the fiel3 

 due to the hot, dry weather conditions at the time the plants were in bloom. 

 The resistant strains are now being grown in the greenhouse and will be 

 crossed with commercial varieties during the winter and spring. 



DEPARTMENT OF HOME ECONOMICS RESEARCH 

 Esther Davies in Charge 



Present Practices of Massachusetts Elementary Schools with Regard to 

 School Feeding and Transportation and Their Effects upon Health of 

 Pupils. (E. Davies). The section of this project dealing with food serv- 

 ice has been entirely completed and a bulletin published describing the 



