THE POSSIBILITY OF DETERMINING IRRIGATION REQUIREMENTS BY MEANS OF PLANT TEMPERATURE
At the examination of plant stocks of different water supply - in accordance with our earlier observations -, we perform measurements of foliage temperature by using infrared remote thermometers. From our irrigation experiments with several vegetable species /snap beans, tomatoes, cabbages/, for characterizing the utilisability we now present some connections of our results obtained in 1986 with the snap bean /Phaseolus vulgaris L./variety "Valja" of spring and summer sowing. The results of our measurings performed in snap bean stocks of good and bad water supply /6–18 h/ show that for characterizing the water supply of plants the foliage temperatures measured in the midday hours /13–15 h/ are most suitable.
According to our results the daily /13 h/ values of temperature in case of plant stocks irrigated in different times have reflected the development of plants water supply very well.
Cselötei, L. and Helyes, L. (1988). THE POSSIBILITY OF DETERMINING IRRIGATION REQUIREMENTS BY MEANS OF PLANT TEMPERATURE. Acta Hortic. 220, 353-358