Associative effect of Azospirillum lipoferum and Azotobacter chroococcum with Rhizobium spp. on mineral composition and growth of chickpea (Cicer arietinum) on sandy soils

Autor: F.A. Helemish, Mehreshan T. El-Mokadem, Z.Y.M. Abou-Bakr, S.A. Sheteawi
Rok vydání: 1989
Předmět:
Zdroj: Zentralblatt für Mikrobiologie. 144:255-265
ISSN: 0232-4393
DOI: 10.1016/s0232-4393(89)80087-3
Popis: Summary The interactions between Azospirillum lipoferum, Azotobacter chroococcum and Rhizobium spp. were assessed by the growth pattern and mineral concentration in chickpeas (Cicer arietinum cv. Giza 2) on loamy sand soil and on sandy soil. Seeds were inoculated with Rhizobium and with either Azospirillum or Azotobacter or with a mixture of both inoculants. Growth of chickpea was improved by adding Azospirillum and/or Azotobacter with Rhizobium in both soil types used. However, Rhizobium with both inoculants was found to be most effective. Cross sections of chickpea root nodules showed that the 2 diazotrophs plus Rhizobium improved nodule branching compared to Rhizobium inoculated treatments in both soil types. Generally the values of nutrient concentration in chickpea tissues were higher in plants grown in loamy sand soil than those grown in sandy soil inspite of the plant age and the applied treatment.
Databáze: OpenAIRE