Drought stress mitigation with humic acid in two Cucumis melo L. genotypes differ in their drought tolerance

Kiran S., Baysal Furtana G., Talhouni M., Ellialtioglu S. S.

BRAGANTIA, cilt.78, sa.4, ss.490-497, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 78 Sayı: 4
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1590/1678-4499.20190057
  • Dergi Adı: BRAGANTIA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.490-497
  • Anahtar Kelimeler: melon, drought, plant breeding, lipid peroxidation, antioxidant enzymes, HYDROGEN-PEROXIDE, WATER-STRESS, PLANT, GROWTH, SUBSTANCES, SALINITY, LEAVES, YIELD, SALT
  • Ankara Üniversitesi Adresli: Evet

Özet

Different responses of two melon (Cucumis melo L.) genotypes (Semame, drought and salt-tolerant and Ananas, drought and salt- sensitive) to drought stress with or without humic acid ( HA) treatment were studied. The experiment was carried out under greenhouse conditions. The experimental design was two factorial randomized block with 4 replicates. HA treatment increased the shoot fresh and dry weights and leaf area of both genotypes under drought stress. HA stimulated accumulation of K and Ca ions, chlorophyll (SPAD value) and antioxidant enzyme activity (superoxide dismutase-SOD, catalase-CAT and glutathione reductase-GR) in both genotypes. This effect was more clear in the Semame genotype than in Ananas. As a result, HA treatment has been proved to influence the ability of melon genotypes to cope with drought stress and to increase their tolerance.