Re-issued in 1952 during the Korean War when it was feared that our sources of foreign fibers might be cut off by the Communist Chinese. Iowa Academy of Sciences, Vol. 116, Sept. 1954, pp. N.J. Photoperiod investigations were undertaken in order to improve methods of field production of hemp. 17, Feaster, C.V., pp.339-340.
Monoecious hemp has the advantage that all plants come to maturity at the same time.
A very thorough book on hemp's history in the number one hemp producing state. Sen. Henry Clay was one of the largest hemp producers in America . At that time nearly all the marine hemp used in the world came from Russia. One of the first studies that clearly shows that hemp-type marihuana grown for fiber is very low in THC, the psychoactive component that gets people high. This makes the hemp-type doubly useless for drug effects.