Some characteristics of symbiotic nitrogen fixation, yield, protein and oil accumulation in irrigated peanuts (Arachis hypogaea L.)

Ratner, E. I.; Löbel, Rina; Feldhay, H.; Hartzook, A.

doi:10.1007/bf02197784

Cited by 20 publications

(7 citation statements)

References 10 publications

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“…In such cases, the authors commented, the oil content of kernels may be increased in comparison with those from untreated plots, probably through delays induced in plant maturity. Ratner et al (1979) In those studies, the oils were either pressed or extracted from peanuts with a variety of organic solvents; but it has to be taken into consideration that few systems extract oilseed lipids with equal efficiency.…”

Section: Development Of Fungi On the Surface Of Peanut Seeds Has Beenmentioning

confidence: 99%

Genotypic and environmental effects on fatty acid composition, iodine value and oil content of peanut (Arachis hypogaea L.) /

Bovi¹

1982

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Section: Development Of Fungi On the Surface Of Peanut Seeds Has Beenmentioning

confidence: 99%

Genotypic and environmental effects on fatty acid composition, iodine value and oil content of peanut (Arachis hypogaea L.) /

Bovi¹

1982

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“…Inoculation of peanuts (Arachis hypogaea L.) grown in Lakeland fine sand with no history of peanut production resulted in a 92% yield increase compared to uninoculated plants (13). Other investigators have reported significant yield increases with inoculation on rhizobia-free soil for peanuts (1,21,22,24) and soybeans [Glycine max (L.) Merr.] (19,30).…”

mentioning

confidence: 99%

Field Evaluation of Selected Rhizobium in an Improved Legume Inoculant¹

Kremer¹,

Peterson²

1983

Agronomy Journal

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Increased grain legume production depends on effective symbiotic dinitrogen fixation through successful legume inoculation. Inoculants containing high numbers ≥ l07/g of effective Rhizobium must withstand adverse field conditions. Field studies were performed to determine the effects of selected rhizobia in two different inoculant carriers on nodulation and performance of three grain legumes. The soil at the 1979 site (Vertic Haplaquept) contained = 103 cowpea Rhizobium and = 102 Rhizobium phaseoli per g of dry soil. The soil at the 1980 site (Typic Paleudalf) contained < l02 R. phaseoli per g of dry soil. Selected strains of R. phaseoli and cowpea Rhizobium were incorporated in peat or vegetable oil. Seeds of bean (Phaseolus vulgaris L.), cowpea [Vigna unguiculata (L.) Walp.], and peanut (Arachis hypogaea L.) were inoculated (ca. 108 Rhizobium/seed) and planted. Nodulation, plant growth, and yields were determined in all experiments. Strains of Rhizobium in oil‐base inoculants generally formed a greater percentage of nodules on plants than did the same strains applied in peat‐base inoculants. Rhizobium phaseoli 971A occupied 93% of bean nodules when applied as oil‐base inoculant but only 82% when applied as peat‐base inoculant. Fresh weight bean yields of 5,620 kg/ha were obtained with strain 971A (oil‐base) compared to 3,370 kg/ha for the peat‐base treatment. Similar significant yield increases were obtained for cowpeas and peanuts inoculated with oil‐base inoculants. These experiments indicate that an improved inoculant provided high numbers of effective Rhizobium at planting. Through subsequent effective nodulation, oil‐base inoculants increased yields and nitrogen fixation by the legumes due to increased nodulation by the superior N2‐fixing strains of Rhizobium.

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“…Contrary to reports indicating a favourable effect of seed inoculation on yield of groundnuts (Schiffmann, 1961;Ratner, LObel, Feldhay & Hartzook, 1979;EJkan, Wynne, Schneeweis & Isleib, 1980;Reddy, T~ner, Roy & Elliot, 1981;Kishinevsky, LObel & Friedm~, 1984), evidence obtained under dryland conditions in Sou~h Africa at various localities did not support these results (Yan der Merwe, Strijdom & Uys, 1974). Lack of response tq inoculation was attributed to the presence in the soil of strains of indigenous Bradyrhizobium spp.…”

Section: Introductionmentioning

confidence: 65%

“…capable of effective nodulation of groundnuts. In this regard it seems significant that most of the reported inoculation trials which have resulted in increased yields, had been conducted in either newly-cleared fields (Dart & Krantz, 1977) or in soils which were free of groundnut nodulating rhizobia (Schiffmann, 1961;Ratner et al, 1979;Elkan et al, 1980;Reddy et al, 1981;Kishinevsky et al, 1984).…”

Section: Discussionmentioning

confidence: 99%

Response to inoculation of groundnuts grown under irrigation in soil containing indigenous rhizobia

Kishinevsky

Strijdom²,

Otto³

et al. 1987

South African Journal of Plant and Soil

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Five strains of Bradyrhizobium spp. highly effective on groundnuts (Arachis hypogaea l.) were used to inoculate groundnuts grown under irrigation in each of two soils. Both soils contained small numbers of indigenous rhizobia capable of n9dulating groundnuts. Root nodules typed serologically by means of the ELISA technique at ca. 40 and 70 days after planting, indicated fair to excellent nodulation by at least four of the inoculant strains; nodules on uninoculated plants tended to be fewer, especially when mineral nitrogen was applied at planting. The percentage nodules formed by an inoculant strain on either tap or secondary roots did not differ appreciably at the two sampling times. At harvest, various yield parameters failed to show a significant effect of inoculation or nitrogen application on the groundnut yield. The results indicate the problem of obtaining a response to inoculation when even low nu"mbers of rhizobia effective on groundnuts are present in the soi/' Vyf Bradyrhizobium spp.•stamme wat hoogs effektief op grondbone (Arachis hypogaea l.) is, is gebruik om grondbone te ent wat onder besproeilng in twee gronde gekweek is. Beide gronde het klein getalle rhizobia bevat wat grondbone kan noduleer. Wortelknoppies wat ongeveer 40 en 70 dae na vestiging serologies ontleed is met die ELlSA-tegniek, het aangedui dat redelike tot uitstekende knopvorming verkry is met minstens vier van die vyf entstofrasse; min knoppe is op onge~nte plante gevorm. Die resultate van twee monsteringstye het min verskil ten opsigte van die persentasie knoppe op beide pen-en sywortels wat deur 'n entstofras gevorm is. Verskeie opbrengsparameters het met oestyd getoon dat n6g enting n6g stikstofbemesting 'n betekenisvolle uitwerking gehad het. Die resultate het bevestig dat dit moeilik is om 'n effektiewe reaksie met enting van grondbone te verkry indien slegs klein hoeveelhede knoppiesbakterie~ wat effektief is op grondbone in die grond teenwoordig is.

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Some characteristics of symbiotic nitrogen fixation, yield, protein and oil accumulation in irrigated peanuts (Arachis hypogaea L.)

Cited by 20 publications

References 10 publications

Genotypic and environmental effects on fatty acid composition, iodine value and oil content of peanut (Arachis hypogaea L.) /

Genotypic and environmental effects on fatty acid composition, iodine value and oil content of peanut (Arachis hypogaea L.) /

Field Evaluation of Selected Rhizobium in an Improved Legume Inoculant¹

Response to inoculation of groundnuts grown under irrigation in soil containing indigenous rhizobia

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Some characteristics of symbiotic nitrogen fixation, yield, protein and oil accumulation in irrigated peanuts (Arachis hypogaea L.)

Cited by 20 publications

References 10 publications

Genotypic and environmental effects on fatty acid composition, iodine value and oil content of peanut (Arachis hypogaea L.) /

Genotypic and environmental effects on fatty acid composition, iodine value and oil content of peanut (Arachis hypogaea L.) /

Field Evaluation of Selected Rhizobium in an Improved Legume Inoculant1

Response to inoculation of groundnuts grown under irrigation in soil containing indigenous rhizobia

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Field Evaluation of Selected Rhizobium in an Improved Legume Inoculant¹