. UBRA^V Of THE 



AiVtHERiV, iAA^a. 



Massachusetts 

 Agricultural Experiment Station 



BULLETIN No. 225 DECEMBER, 1925 



YELLOW PICKLE IN GREENHOUSE 

 CUCUMBERS 



By VICTOR A. TIEDJENS 



Contribution from the 



MARKET GARDEN FIELD STATION 



of the 



MASSACHUSETTS AGRICULTURAL COLLEGE 



Yellow pickles on greenhouse cucumber plants are due to a physiological 

 disoraer causing the fertilized pickles to ripen prematurely. Any environ- 

 mental factor that reduces the amount of food material in the plant may 

 result in a condition favorable to the formation of yellow pickles. In- 

 adequate light, insufficient nitrates, excessive set, surplus water, poor 

 drainage, or a serious attack of animal or pl^nt parasites may all con- 

 tribute to a premature ripening of cucumbers. The remedy is primarily 

 the prevention, elimination, or correction of those conditions that tend to 

 devitalize the plant. 



/» 



Requests for Bulletins should be addressed to the 



AGRICULTURAL EXPERIMENT STATION, 

 AMHERST, MASS. 



