The effect of nitrate on the time course of nitrogen fixation and growth in Pisum sativum and Vicia faba

1990 ◽  
Vol 127 (1) ◽  
pp. 143-146 ◽  
Author(s):  
B. R. Buttery ◽  
A. H. Gibson
1979 ◽  
Vol 59 (1) ◽  
pp. 27-34 ◽  
Author(s):  
J. R. DEAN ◽  
K. W. CLARK

The effect of inoculum specific to peas (Pisum sativum L.) on the nodulation, acetylene reduction and yield of fababeans (Vicia faba L.) was studied in three experiments. Fababeans, inoculated with pea inoculum or uninoculated (indigenous soil inoculum), were significantly inferior to fababeans inoculated with rhizobia specific for fababeans. Various mixtures of specific and non-specific inoculum (simulating competition between different rhizobia) were tested. One type was favored by slurrying it onto the seed. When favored, the specific fababean inoculum was equally effective with or without competition from non-specific inoculum. Favoring the pea inoculum led to a significant decrease in acetylene reduction, but this was not sufficient to reduce yield. It is concluded that indigenous pea rhizobia in the soil should not reduce nitrogen fixation and yields of fababeans when specific inoculum is slurried onto the seed.


Planta ◽  
1984 ◽  
Vol 160 (3) ◽  
pp. 276-280 ◽  
Author(s):  
Micha Guy ◽  
Hans Kende

2013 ◽  
Vol 2 ◽  
pp. 64-70 ◽  
Author(s):  
Ram Bahadur Thapa

Six new species of other stem flies infesting mostly legumes were also discovered under the genus Melanagromyza (stem flies) from Pantnagar, Northern India. These were: M. species new ex stems of Cassia sp. (proposed name M. pathaki new species); M. species new ex stems of Glycine max (Linn.) Merril. (proposed name M. glycini new species); M. species new ex stems of Medicago denticulata willd. (proposed name M. denticulata Willd. new species); M. species new ex stems of Pisum sativum Linn. (proposed name M. pisiphaga new species); M. species new ex stems of Trifolium pratense Linn,. (proposed name M. sehgali new species) and M. species new ex stems of Vicia faba Linn. (proposed name M. vicivora new species). New names have been proposed to them as per International rules of Zoological Nomenclature. Other stem flies redescribed by author include: Ophiomyia centrosematis de Meijere, Opmiormyia phaseoli (Tryon) and Ophiomyia cicerivora. More than one thousand male genitalia slides were prepared for this study. Variations in morphology and genitalia characters have been described between and within the species. Melanagromyza sojae (Zehtner) has been redescribed here. DOI: http://dx.doi.org/10.3126/njbs.v2i0.7491 Nepalese Journal of Biosciences 2 : 64-70 (2012)


1935 ◽  
Vol 58 (2) ◽  
pp. 409-425 ◽  
Author(s):  
G. Bond

Twelve years ago Priestley and Ewing (1923) reported that in certain plants, normally showing but little development of stem-endodermis, an extensive formation of this layer could be induced by etiolation. (Note: In this paper the term endodermis is used only when the layer shows characteristic structural features—in the present case the Casparian strip.) A later paper by Priestley (1926) dealt with the same subject. The specified plants with which this result was obtained consisted of four closely related species, namely, Vicia Faba, V. sativa*, Pisum sativum, and Lens esculenta*, and also Solanum tuberosum. (The statements relating to the species marked with an asterisk are based on unpublished work carried out at Leeds, kindly placed at the author's disposal by Professor J. H. Priestley.) In these plants a primary endodermis, though present only at the base of the normal shoot, was described as extending to a considerable height in the etiolated shoot. It was concluded that the absence of endodermis from the greater part of the shoot of these plants, when grown under normal conditions, arises from the inoperation, in the presence of light, of the mechanism forming the Casparian strip.


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