Evaluation of Bulgarian varieties Valencia-type peanut (Arachis hypogaea L.) under moderate drought conditions in the early stages of flowering and saturation of the nuts

Radoslav Chipilski, Stanislav Stamatov, Manol Deshev

Abstract: The influence of short-term drought during the phenophases beginning of flowering and saturation of the nuts on Bulgarian peanut varieties selection was tested. Changes in water exchange indices, some morphometric indicators, relative chlorophyll content and seed and fruit yields in 10-day induced drought were reported. Correlations between the researched indicators were found. The results show that the studied peanuts varieties do not use soil water efficiently, but although they are under moderate stress they do not decrease fruit and seed yields. The most effective use of soil water is observed in the Kremena variety.

Keywords: drought stress; peanuts; physiological reaction; seed yield

Date published: 2019-03-19