Effect of Seed Inoculation with Actinomycetes and Rhizobium Isolated from Indigenous Soybean and Rhizosphere on Nitrogen Fixation, Growth, and Yield of Soybean
Table 1
Ability of Actinomycete isolates to grow in culture media without nitrogen source. The isolates may be diazotrophs based on their ability to grow in N-free media.
Isolate code
Nitrogen total (Kjeldahl) (%)
Growth on Burk’s N-free media
AK 1
0.00
(−)
AK 2
0.00
(−)
AK 3
0.00
(−)
AK 4
0.00
(−)
AK 5
0.11
(+)
AK 6
0.00
(−)
AK 7
0.00
(−)
AK 8
0.00
(−)
AK 9
0.00
(−)
AK 10
0.00
(−)
AK 11
0.00
(−)
AK 12
0.00
(−)
AK 13
0.00
(−)
AK 14
0.00
(−)
AK 15
0.00
(−)
AK 16
0.20
(++)
AK 17
0.17
(+)
AK 18
0.00
(−)
AK 19
0.34
(+++)
AK 20
0.14
(+)
AK 21
0.17
(+)
RK1
0.00
(−)
RK2
0.00
(−)
RK3
0.00
(−)
RK4
0.00
(−)
RK5
0.00
(−)
RK6
0.00
(−)
RK7
0.00
(−)
RK8
0.00
(−)
RK9
0.00
(−)
RK10
0.00
(−)
RK11
0.00
(−)
RK12
0.20
(++)
RK13
0.00
(−)
RK14
0.00
(−)
RK15
0.00
(−)
RK16
0.00
(−)
RK17
0.00
(−)
RK18
0.00
(−)
RK19
0.00
(−)
RK20
0.00
(−)
RK21
0.17
(+)
RK22
0.14
(+)
RK23
0.00
(−)
RK24
0.00
(−)
RK25
0.20
(++)
RK26
0.00
(−)
RK27
0.34
(+++)
RK28
0.00
(−)
RK29
0.00
(−)
RK30
0.31
(+++)
RK31
0.00
(−)
RK32
0.00
(−)
RK33
0.00
(−)
RK34
0.22
(++)
RK35
0.00
(−)
(+++) = high nitrogen production. (++) = medium nitrogen production. (+) = low nitrogen production. (−) = no nitrogen production.
