J. Hellkvist

Field studies of water relations and photosynthesis in Scots pine.

Karin Hillerdal‐Hagströmer, Erkki Mattson‐Djos, J. Hellkvist, 1982 .

The Water Relations of Pinus sylvestris III. Diurnal and Seasonal Patterns of Water Potential

J. Hellkvist, J. Parsby, 1976 .

The Water Relations of Pinus sylvestris II. Comparative Field Studies of Water Potential and Relative Water Content

J. Hellkvist, 1973 .

The water relations of Pinus sylvestris. I. Comparative field studies of transpiration and drying-transpiration.

J. Hellkvist, 1970 .

The Water Relations of Pinus sylvestris

J. Hellkvist, J. Parsby, 1977 .

Vertical Gradients of Water Potential and Tissue Water Relations in Sitka Spruce Trees Measured with the Pressure Chamber

P. Jarvis, J. Hellkvist, G. P. Richards, 1974 .