| Download | - View final version: Variability and interaction in the Pisum sativum L. — Rhizobium leguminosarum symbiosis (PDF, 696 KiB)
|
|---|
| DOI | Resolve DOI: https://doi.org/10.4141/cjps83-075 |
|---|
| Author | Search for: Hobbs, S. L. A.1; Search for: Mahon, J. D.1 |
|---|
| Affiliation | - National Research Council of Canada. Prairie Regional Laboratory
|
|---|
| Format | Text, Article |
|---|
| Subject | genotype × strain; N₂ fixation,; photosynthesis; respiration; growth |
|---|
| Abstract | Symbiotic nitrogen fixation was examined in 36 plant genotype-bacterial strain combinations produced by growing six genotypes of Pisum sativum L. and six strains of Rhizobium leguminosarum in all combinations. Both genotypes and strains had effects not only on nitrogen fixation but also on characters associated with plant growth and photosynthesis. However, relationships between characters differed markedly depending on whether genotype or strain means were used to calculate correlation coefficients. Genotype × strain (G × S) interactions also affected the expression of several of the characters. Using nitrogen fixation as an example, statistical methods analogous to those developed for the analysis of genotype × environment interactions were used to study this interaction. From this analysis it was apparent that the G × S variability was mainly caused by differences in the magnitude of the response of plant genotypes or bacterial strains to changes in the complementary symbiont with little difference in the stability of this response. An examination of different indicators of performance, response, and stability of that response, suggests that both plant genotypes and bacterial strains could be selected for relatively uniform fixation over a range of symbiotic partners, or that specific combinations could be selected for maximum symbiotic effectiveness. |
|---|
| Publication date | 1983-07-01 |
|---|
| Publisher | Canadian Science Publishing |
|---|
| In | |
|---|
| Language | English |
|---|
| Peer reviewed | Yes |
|---|
| Identifier | NRCC-20992 |
|---|
| Export citation | Export as RIS |
|---|
| Report a correction | Report a correction (opens in a new tab) |
|---|
| Record identifier | b8912f28-8f82-4115-9b05-8d4ecd960a6e |
|---|
| Record created | 2023-09-05 |
|---|
| Record modified | 2023-09-05 |
|---|
