SELECTION OF SOME IMPORTANT SPECIES IN GENUS BRASSICA AGAINST DROUGHT AND SALT TOLERANCE BY MORPHOLOGICAL OBSERVATIONS ON GERMINATION AND SEEDLING GROWTH PARAMETERS

Kayacetin F.

FRESENIUS ENVIRONMENTAL BULLETIN, cilt.30, sa.7A, ss.9228-9236, 2021 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 30 Sayı: 7A
  • Basım Tarihi: 2021
  • Dergi Adı: FRESENIUS ENVIRONMENTAL BULLETIN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Aerospace Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Chemical Abstracts Core, Communication Abstracts, Environment Index, Geobase, Greenfile, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.9228-9236
  • Anahtar Kelimeler: Brassica juncea, B. nigra, B. rapa, Salt and drought stress, S. alba, SALINITY STRESS, CABBAGE, NACL
  • Ankara Üniversitesi Adresli: Hayır

Özet

It is very important to identify physiological responses of species against major stresses like drought and salinity to select and screen high yielding species under the available environmental conditions for better yield. This study evaluated the effects of PEG 6000 (0.0, -0.2, -0.4, -0.6, -0.8, -1.0, -1.2 and -1.4 MPa) and NaCI (0, 5, 10. 15, 20, 25.30 and 35 dSm(-1)) on germination and early seedling growth of 4 species in genus Brassica including Brassica juncea, B. rapa, B. nigra and Sinapis alba. Results revealed that the species showed different responses to PEG and NaCI stress. Comparing the results with controls, the B. juncea and B. rapa were more tolerant against drought and salinity stress compared to B. nigra and S. alba. The germination percentage and seedling growth parameters decreased gradually by treating the species using >-0.4 MPa PEG and > 10 dSm(-1) NaCI. The effects of NaCI were less pronounced on germination and seedling growth compared to these effects due to PEG. The seed germination was completely stopped using > -1.0 MPa PEG treatments in B. juncea, B. rapa, and S. alba; and at >0.8 MPa treatment in B. nigra. Correspondingly, seed germination was completely inhibited at 35 dSm(-1) NaCI induced stress treatments in B. juncea, B. rapa, and. B. nigra. Whereas, S. alba was a bit sensitive and induced stopage of germination at 30 dSm(-1) NaCI induced stress. This study highlighted the significance of screening B. juncea. B. rapa, B. nigra and S. alba species against NaCl and PEG stresses for better crop management.