Effects of PEG-Induced Drought Stress and Different Boron Levels on Seed Germination and Seedling Growth Characteristics in Chickpea (Cicer arietinum L.) and Lentil (Lens culinaris Medik.)

Authors : Duygu SARI

Pages : 154-161

Doi:10.19159/tutad.1276917

View : 116 | Download : 98

Publication Date : 2023-07-31

Article Type : Research Paper

Abstract :In the present study, the drought tolerance potential of chickpea insert ignore into journalissuearticles values(Cicer arietinum L.); and lentil insert ignore into journalissuearticles values(Lens culinaris Medik.); seeds under different boron insert ignore into journalissuearticles values(B); levels were assessed. One chickpea insert ignore into journalissuearticles values(Azkan); and one lentil cultivar insert ignore into journalissuearticles values(Sahan); were selected for the genetic material. To provide drought condition, different level of polyethylene glycol solution insert ignore into journalissuearticles values(PEG 6000); was applied to seeds. Germination experiments were performed under PEG-induced stress to create water potentials of 0 insert ignore into journalissuearticles values(control);, -2, and -4 MPa. Then, boron was applied as H3BO3 at 0 insert ignore into journalissuearticles values(control);, 5, and 10 mM. The effects of these abiotic stresses were determined with the measurement parameters of germination rate and root traits. Drought stress adversely affected germination rate and seedling growth characteristics in chickpea and lentil. Especially, seed germination rate is extremely reduced by increased levels of drought stress. An increase in PEG levels from 0 to -4 MPa drastically decreased root and shoot width, and shoot length in chickpea whereas they did not generate a significant difference in seedling growth traits except for root width in lentil. Additionally, the results showed that increasing B treatments decreased the germination rate in both chickpea and lentil. The low concentration of B insert ignore into journalissuearticles values(5 mM); increased root and shoot length; however, a remarkable decrease was observed in root and shoot growth traits at the highest concentration of B insert ignore into journalissuearticles values(10 mM);. The overall findings show that germination and seedling growth parameters were greatly inhibited by different concentrations of PEG and > 10 mM B levels for chickpea and lentil production.
Keywords : Abiotic stress, boron treatment, germination, legume, PEG 6000