1. Hybrid Tea-roses under controlled light conditions. I. The effect of the level of irradiation on the growth and development of seedlings;De Vries;Neth. J. Agric. Sci.,1978
2. Hybrid Tea-roses under controlled light conditions. II. Flowering of seedlings as dependent on the level of irradiance;De Vries;Neth. J. Agric. Sci.,1978
3. Effects of temperature on growth and development of Hybrid Tea-rose seedlings;De Vries;Scientia Hortic.,1979
4. Hybrid Tea-roses under controlled light conditions. III. Flower and blind shoot production in the glasshouse of seedlings selected for flowering or flower bud abortion at low irradiances in a growth room;De Vries;Neth. J. Agric. Sci.,1978
5. Genetic variation for the time of first flower and shoot length in Hybrid Tea-rose seedling populations under a range of temperatures;De Vries;Scientia Hortic.,1980