Biostimulators Roots and FeRoots Influence Growth and Yield of Vegetables

INTRODUCTION

Research in the use of plant growth regulators (PGRs) has increased tremendously in 
recent years. This increase is due to the need to evaluate a large number of newly released 
compounds from industry. One recently-introduced class of PORs, classified as biostimulators, 
has been designed to stimulate or enhance certain aspects of plant growth instead of the nonnal 
suppression of plant growth activity traditionally associated with PGRs. Growth stimulation or 
suppression of various plant organs through biostimulator application may have an effect on 
improving vegetable production by improving yield.

Biostimulators are a feasible production tool for vegetables. However, little information 
is available on the positive or detrimental effects of these compounds on plant growth and yield. 
Research in this area will allow researchers to recommend the optimum dose of Roots and 
FeRoots that will contribute to optimal plant growth and yield of vegetables. Therefore, it is 
essential to study the effect of Roots and FeRoots on vegetables.

The objectives of this study is to evaluate the effect of Roots and FeRoots (biostimulators) 
on yield and biomass production of broccoli, cabbage and onions. -

METHODS AND MATERIALS

Growth biostimulators Roots and FeRoots were applied on broccoli cv Premium crop, 
cabbage cv Early Round Dutch, and onion cv Granex. The soil type at the experimental site was 
a Memphis silt loan. Plant spacing within row was 18 inches for cabbage and broccoli and four