1. Effects of photoperiod and kind of supplemental light on vegetative growth of pines;Downs;For. Sci.,1958
2. Comparison of incandescent and fluorescent lamps for lengthening photoperiods;Downs,1958
3. Conditions determining effects of far-red and red irradiation on flowering response of Pharbitis nil;Fredericq;Plant Physiol.,1964
4. Effects of spectral composition of the main light period on flowering Bougainvillea ‘San Diego Red’;Hackett;HortScience,1975
5. New pot plant;Hildrum;N.Y. State Flower Ind. Bull.,1972