Use of useful bacteria

1. Rizobia
2. PGPR

Rizobia

• Four years (2000-2003) of trials about the inoculation of genetically different rizobia strains on grain leguminous cultivated in the field (pea, chick pea and broad bean) and in greenhouse (bean), showed that some rizobia strains were able to improve production (in the field, plus 37% for pea and 21% for chick; in greenhouse, plus 30% for bean). Nevertheless, these results weren't confirmed all the years.
  Some rizobia isolates were able to induce, especially on pea, very lange and corn-shaped tubercles; sometimes, these strains reduced production of the inoculated plants.

Contacts:
Dr. Massimo Zaccardelli, m.zaccardelli@isci.it
Dr. Italo Giordano, i.giordano@isci.it

PGPR

Isolates of Bacillus spp. are able to promote the growth of the plants. At Battipaglia Section two strains, named 10 VI bac and 6 V bac, were able to promote growth of small tomato (ecotype Corbarino). In particular, 10 VI bac had increased 26% dry matter. Other three isolates of Bacillus spp. (3 R II bac, Ant. Rhiz. B and 7 III bac) had increased the growth of tobacco. In particular, the isolates 7 III bac had increased significantly dry matter. Conversely, other two isolates (Ant. Scler. and 21 V bac) had sensitively reduced growth of tomato. These last strains are potentially useful as bio-weed-killer.

Contacts:
Dr. Massimo Zaccardelli, m.zaccardelli@isci.it