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  • Articles  (5)
  • Glycine max  (5)
  • 1985-1989  (2)
  • 1980-1984  (3)
  • 1970-1974
  • 1988  (2)
  • 1984  (3)
  • 1981
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (5)
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  • Articles  (5)
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Years
  • 1985-1989  (2)
  • 1980-1984  (3)
  • 1970-1974
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  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (5)
  • Biology  (2)
  • 1
    ISSN: 1573-5060
    Keywords: Glycine max ; soybean ; cookability ; water absorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Improvement of cookability is an important objective in breeding of food legumes. The present study was undertaken to investigate variation in cookability in soybean. Genetic variation was observed among lines from two crosses. Absence of associations between cookability and protein content, oil content and grain yield indicate that selection for cookability can be achieved without adversely affecting the expression of these characters.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-5036
    Keywords: 15N isotope dilution ; Bradyrhizobium japonicum ; Glycine max
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The practice of seeding soybeans following paddy rice in Thailand has encountered difficulties in seedling germination, nodulation and crop establishment. This research project evaluated the choice of a non-fixing control to quantify N2 fixation by15N isotope dilution, and the effect of tillage regime, soybean cultivar, strain ofBradyrhizobium japonicum and P fertilization on yield and N2 fixation after paddy rice in northern and central Thailand. Japanese non-nodulating lines Tol-0 and A62-2 were the most appropriatecontrol plants for15N isotope dilution for Thai soybeans in these soils which contained indigenous rhizobia. Cereals such as maize, sorghum and barley were also appropriate controls at some sites. The choice of the appropriate non-fixing control plant for the15N isotope dilution technique remains a dilemma and no alternative exists other than to use several possible controls with each experiment. Acetylene reduction assay (ARA) proved of little value for screening varieties on their N2 fixing capacity. The recommended Thai soybean cultivars (SJ1, 2, 4, 5) and an advanced line 16–4 differed little in their ability to support N2 fixation or yield, possibly due to similar breeding ancestry. The ten AVRDC (ASET) lines showed considerable genotypic control in their ability to utilize their three available N sources (soil, fertilizer, atmosphere) and to translate them into yields. None of these lines were consistently superior to Thai cultivars SJ4 or SJ5 although ASET lines 129, 209 and 217 showed considerable promise. Neither recommended Thai or ASET cultivars were affected by tillage regime. Zero tillage resulted in superior N2 fixation and yield at two sites but conventional tillage was superior at another site. Soybean cultivars grown in Thailand were well adapted to zero tillage. Levels of N2 fixation were similar to world figures, averaging more than 100 kg N ha−1 and supplying over 50% of the plant's N yield. However, seed yields seldom exceeded 2 t ha−1, well below yields for temperately-grown soybeans. It is not clear why Thai soybeans support N2 fixation, but do not translate this into higher seed yields.
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Plant and soil 77 (1984), S. 3-14 
    ISSN: 1573-5036
    Keywords: Asian-type soybean ; Fast-growingRhizobium japonicum ; Glycine max ; Nitrogen fixation ; Rhizobium japonicum ; Rhizobium physiology ; Root nodule
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Physiological and symbiotic characteristics were identified in fast-growing (FG)Rhizobium japonicum. Carbon nutritional patterns linked these rhizobia to other FG rhizobia. They were able to use hexoses, pentoses, disaccharides, trioses, and organic acids for growth, but they were unable to use dulcitol or citrate. These rhizobia produced acid with all carbon sources except intermediates of the Krebs cycle. FGR. japonicum showed no vitamin requirements and were tolerant to 1% NaCl but not to 2%. They nodulated cowpea, pigeon pea, and mung bean but not peanut. Effective, nitrogen-fixing symbioses were observed only with cowpea and pigeon pea. In addition, FGR. japonicum formed effective symbioses with Asian-type soybeans. We concluded that although the physiological characteristics of FGR. japonicum were similar to other FG rhizobia, their symbiotic properties were similar to slow-growing rhizobia of the cowpea miscellany.
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  • 4
    ISSN: 1573-5036
    Keywords: Glycine max ; Inoculation ; IW/CPE ratio ; Nitrogen accumulation ; Nitrogen harvest ; Nitrogen re-distribution ; Nodulation ; Rhizobium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A field experiment was conducted on soybean (Glycine max (L.) Merrill) with a view to find out the effect of seed inoculation and scheduling of irrigation on nodulation, accumulation and re-distribution of nitrogen in plant tops and soil. The eight treatment combinations consists of two seed inoculations,viz. uninoculated and inoculated with rhizobium culture, and four irrigation schedules,viz. irrigation water to the cumulative pan evaporation (IW/CPE) ratio of 0.5, 0.7, 0.9 and a control (rainfed). Seed inoculation by, rhizobium culture increased the number, dry-weight and N content of nodules per plant. Inoculation of seeds also increased the N accumulation rate in plant top and it was 2.48 kg/ha/day during the flower-initiation to the pod-initiation stage (30–60 days interval). At harvest, 32.2, 47.8 and 26.2 kg N/ha was re-distributed from the stems, leaves and pods-wall of inoculated plants to the grains, respectively. A total of 186.5 kg N/ha was harvested and 64.7 kg N/ha, was accumulated in soil under the inoculated condition. Scheduling of irrigation at 0.7 IW/CPE proved better, than other irrigation schedules and helped in increasing the nodulation, nitrogen accumulation and grain yield. As compared to control, 8.4, 17.8 and 18.4 kg more of N/ha was redistributed from the stems, leaves and pods-wall respectively when the irrigations were scheduled at 0.7 IW/CPE ratio. Under this irrigation schedule the total N harvest was 200.1 kg/ha while the total N increased by 55.9 kg over that present in soil at the time of sowing.
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  • 5
    ISSN: 1573-5036
    Keywords: anthracene ; Avena sativa ; Banksia ericifolia ; Casuarina distyla ; copper ; Cucumis sativus ; Eucalyptus eximia ; Glycine max ; tri-allate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The effect of soil-incorporated copper, tri-allate, and anthracene on the emergence and early growth of three Australian native species (Banksia ericifolia, Casuarina distyla andEucalyptus eximia) and three crop species (Avena sativa, Cucumis sativus andGlycine max), was assessed using OECD Test Guideline 208. The crop species are sensitive species used in overseas phytotoxicity testing, and their responses were compared with those of the native species. Seeds were grown in pots in a glasshouse in a sandy loam soil at the chemical concentrations of 0, 10, 100, 1000 and 2000 mg kg−1. LC50 and EC50 values were determined for each species. The most sensitive species was the monocotyledonA. sativa, while among the five dicotyledonsC. distyla was most sensitive. All three chemicals delayed emergence and affected seedling growth. The results indicate that the conditions of the OECD Test Guideline can be met under Australian conditions, but that the Guideline requires modification for use with Australian native species.
    Type of Medium: Electronic Resource
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