Record ID No. |
801 |
Author(s) |
Gupta N., Rautaray S., Basak U.C. , 2006 |
Affiliation |
Microbiology Laboratory, Division of Biotechnology, Regional Plant Resource Centre, Bhubaneswar - 751 015 Orissa, India. |
Title |
The growth and development of arbuscular mycorrhizal fungi and its effects on the growth of maize under different soil compositions |
Source. Vol.(no):Page |
Mycorrhiza News. 18 (3):15-23p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Soil plant relations |
Sub-subjects |
Fungal evaluation |
Host |
Zea mays |
Organism |
Glomus |
Country |
India, South Asia |
Abstracts |
A study was conducted to investigate the effects of different soil compositions on arbuscular mycorrhizal (AM) fungi and maize hosts. The AM spores belonging to Glomus sp. were isolated from the rhizosphere soil of tea grown in Orissa, India. The soil compositions include: T1-black cotton soil + sand + compost (2:1:1); T2-T1 + AM fungi; T3-black cotton soil + AM fungi; T4-black cotton soil + sand (1:1) + AM fungi; T5- black cotton soil + sand + soilrite (1:1) + AM fungi; T6-black cotton soil + sand + soilrite (1:1:1) + AM fungi; T7-black cotton soil + sand + compost (2:1:1) + Hoagland nutrient + AM fungi; T8-black cotton soil + sand + compost (2:1:1) + Bavistin + AM fungi; and T9-black cotton soil + sand + compost (2:1:1) + indofil + AM fungi. Plants grown in T2 recorded 84% AM colonization followed by T3 and T6. The total number of vesicles in the infected roots was higher in T2 followed by T6. T2 and T7 showed higher plant height. The total number of leaves was higher in plants grown in T9. The average leaf area and total leaf area were higher in T4. Shoot length was high under T2. The highest fresh and dry weight was recorded in T2 followed by T7 for root biomass and T8 for leaf biomass. Shoot-root ratio with respect to length was higher in T9. Biomass with regards to yield, shoot-root ratio was higher in T7. The maximum biomass was covered by roots of inoculated plants except those grown under T2 and T5, where 31% and 39% of the biomass was assigned to the shoots, respectively. Among the treatments, different soil compositions and soil added with nutrient solution and fungicides application was found significantly variable at 1% level and 0.1% level for the shoot length. Analysis of variance for leaf number of different stages of maize growth under different treatments revealed that the variation in the periodical effect of soil composition was significant at 5% level only. A wide level of variation was found through the analysis of variance for leaf area at different stages of maize growth under different treatments. All except nutrient and fungicide application showed significant variations at 0.1% level for leaf area at different stages of maize growth under different treatments. Root length and root dry biomass were positively correlated with percentage of colonization in maize plants of different soil compositions. |