Verschuiving der periodiciteit : aanpassing en export voor het zuidelijk halfrond (Hyacinth en tulp)
Licht als factor in plantenphysiologisch onderzoek
Wave length dependence of photomorphogenesis in plants
Light of various spectral regions (at low or high intensities) supplemented a short day (SD) in white light, or was used alone at high intensity. Two types of relation of wave length to photoperiodic reaction were found: Crucifers were sensitive to blue and infrared (even SD exposure promoted elongation and flowering) and did not respond to 520-700...
De invloed van het blad op de bloei = The influence of the leaf on flowering
Photosynthesis of crop plants as influenced by light, carbon dioxide, temperature, and stomatal diffusion resistance
The effect was estimated of light intensity, leaf temperature, and C0 2 concentration on photosynthetic rate in leaves of crop plants. The potential capacities of photochemical and biochemical processes and of C0 2 transport were compared.Resistance to C0 2 transport in various parts of the pathway from external air to reaction centre in the chloro...
Preliminary observations on the effect of light intensity and photoperiod on transpiration and growth of young tomato pl...
Photoperiodiciteit bij Sorghum vulgare Pers.
Great millet of 35 varieties from several tropical and subtropical countries were tested for response to photoperiod. Some were analysed and measured extensively with photoperiods ranging from 5 to 24 h in a 24-h day. The development of the growing point was observed in relation to duration of growth from sowing until flower initiation and anthesis...
A physiological study of shading and density effects on the growth and the efficiency of solar energy conversion in some...
The growth and the efficiency (E s ) of conversion of solar energy were greatly affected in barley by both shading and density, although not always similarly in 1957 and 1958. Observations were made on: height; internode length; shoot diameter; shoot and leaf number; number and percentage of dead leaves; leaf length, breadth, ratio, thickness and a...
On the relation between the maximum rate of photosynthesis and the thickness of the mesophyll in sun- and shade leaves o...
Tropische landbouwplantenteelt in verband met licht en temperatuur
Rede Wageningen, 9 november 1961
