RESEARCH ON THE PHYSIOLOGY OF SWEET POTATO PLANTS ACCORDING TO BIOLOGICAL MATERIAL AND CLIMATIC CONDITIONS IN THE AREA OF SANDY SOILS

Authors

  • A. PARASCHIV
  • A. DIACONU
  • M. PLOAE
  • R. DRĂGHICI

Abstract

Climate changes in recent years also had repercussions on physiological processes in plants, with varying degrees of adaptation to stress. The sandy soils area has a natural background favorable to a significant impact of drought on agricultural crops, forcing us to grow new plants that can more easily withstand the thermo-hydric stress. The research of the physiology laboratory of the Research - Development Center for Field Crops on Sandy Soils Dabuleni aimed at monitoring the physiological reactions on vegetation phenophases at 5 sweet potato genotypes cultivated on transparent mulch in the first decade of May (the first epoch) in order to determine their tolerance to characteristic thermo-hydric stress of the sandy soils area. Were determined in diurnal variation: photosynthesis, foliar transpiration, photosynthetic active radiation and temperature at leaf level, as well as water forms and leaf-dried substance. The results obtained revealed that sweet potato is a plant ho loves light and heat, tolerant to the thermo-hydric stress characteristic of sandy soils. Most of the studied varieties have efficiently used the evaporation of water through foliar transpiration found in the high photosynthetic yield throughout the vegetation period.

Published

2018-08-21

Issue

Section

Working Group 3: Fundamentally Disciplines and Environment and Plant Management