scholarly journals Symbiotic efficiency of nodule bacteria strains on legumes

Author(s):  
S.V. Didovich ◽  
◽  
O.P. Alekseenko ◽  
A.N. Pas' ◽  
◽  
...  

Nowadays, ecologization is one of the important tasks for agriculture. Microbiological preparations based on nodule bacteria application in agriculture is a significant part of organic crop production. Symbiotic efficiency of 13 nodule bacteria strains from the Crimean collection of microorganisms of the FSBSI “Research Institute of Agriculture of Crimea” (http://www.ckp- rf.ru/usu/507484/) was studied in our research. In laboratory conditions, we established that four strains of Rhizobium leguminosarum bv. viceae and five strains of Bradуrhizobium japonicum have high symbiotic efficiency to Pisum sativum L., Lathyrus sativus L., Glycinе max L.(Merr.). These strains are recommended for identifying highly effective ones to modern cultivars of these legumes in the conditions of the steppe zone of Crimea.

2007 ◽  
Vol 43 (5) ◽  
pp. 516-522 ◽  
Author(s):  
A. K. Glyan’ko ◽  
G. P. Akimova ◽  
L. E. Makarova ◽  
M. G. Sokolova ◽  
G. G. Vasil’eva

2007 ◽  
Vol 155 (11-12) ◽  
pp. 728-734 ◽  
Author(s):  
Y. Mabrouk ◽  
P. Simier ◽  
A. Arfaoui ◽  
B. Sifi ◽  
P. Delavault ◽  
...  

1983 ◽  
Vol 63 (3) ◽  
pp. 591-599 ◽  
Author(s):  
S. L. A. HOBBS ◽  
J. D. MAHON

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.Key words: Genotype × strain, N2 fixation, photosynthesis, respiration, growth


2009 ◽  
Vol 10 (1) ◽  
pp. 5
Author(s):  
Julio Ricardo Galindo Pacheco ◽  
Jairo Clavijo Porras

<p>La valoración del efecto del ambiente en el desarrollo de los cultivos es importante para la determinación de zonas aptas y la planificación de la producción. En esta investigación se realizaron cuatro ensayos para evaluar el desarrollo de las plantas de arveja (<em>Pisum sativum </em>L.) variedad Santa Isabel en condiciones de la sabana de Bogotá, Colombia, (2640 msnm, 14°C, 80% H.R., 800 mm de lluvia anual), tema sobre el cual no hay información. Se realizaron dos ensayos bajo cubierta plástica (21°C ± 2,5°C, promedio ± DE) y dos a campo abierto (13,9°C ± 1,2°C). Se evaluó el tiempo de la siembra a la emergencia, la tasa de aparición de nudos en el tallo principal, el inicio de la floración, la duración del ciclo de la siembra hasta la cosecha, el número de nudos totales en la cosecha y el número de nudos con flor. Se encontró que la temperatura bajo cubierta plástica aceleró en 10 días la emergencia de las plantas y redujo el filocrón de 3,05 a 2,72 días/nudo, lo cual a su vez adelantó el momento de floración y cosecha entre 15 y 20 días. La tasa de aparición de nudos no varió significativamente por el cambio de la fase vegetativa a reproductiva. Los resultados contribuyeron a respaldar el modelo dentado de desarrollo vegetal en función de la temperatura para arveja, según el cual el crecimiento es máximo en un rango de temperatura óptima, que se sugiere está entre los 14°C y 21°C. </p><p> </p><p><strong>Phenology of pea crop (</strong><strong><em>Pisum sativum </em></strong><strong>L. var. Santa Isabel) in the Bogotá plateau at open field and under plastic cover</strong> </p><p>The assessment of environment effects on plant development is important to identify suitable zones and schedule crop production. In this research, plant development of pea (<em>Pisum sativum </em>L. var. Santa Isabel) was evaluated under Bogotá flat highland, Colombia, environmental conditions (2640 m over sea level, 14°C, 80% R.H., rainfall of 800 mm/year). Two experiments were done under plastic cover (21°C ± 2,5°C, mean ± SD), and two at open field (13,9 ± 1,2°C). Following variables were evaluated: time to emergence, cycle duration from sowing to harvest, total nude number at harvest and flowering nude number at harvest. It was shown that temperature under plastic cover accelerate plant emergency in 10 days and reduce phyllochron from 3,05 to 2,72 day/node, so the flowering time was accelerated between 15 and 20 days. Node rate appearance did not change from the vegetative to reproductive stage. The results confirm the dent-like model of pea plant growth responses to temperature regimes, so the crop growth had a maximum at a plateau in a temperature range which could be between 14°C and 21°C. </p>


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