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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial & engineering chemistry 20 (1928), S. 510-512 
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial & engineering chemistry 22 (1930), S. 51-54 
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial & engineering chemistry 22 (1930), S. 379-380 
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial & engineering chemistry 22 (1930), S. 1124-1128 
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial & engineering chemistry 25 (1933), S. 904-908 
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1573-5036
    Keywords: black gram ; boron deficiency ; borax rates ; green gram ; hollow heart ; hot-water-soluble boron ; kernel boron ; leaf boron ; peanut ; rice ; soybean ; sunflower ; wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The effect of boron (B) on peanut and soybean was examined in two omission and one B fertilizer rate trial on a Typic Tropaqualf in Northern Thailand. The B rate trial was combined with a comparison of the response of sunflower, green gram, black gram, wheat, and rice in addition to peanut and soybean grown in irrigated rice-based cropping sequences over two years. Omitting B induced the hollow heart symptom in 10% of peanut kernels with the incidence of hollow hearts closely related to B concentration in the kernels. Omission of B had no effect on the appearance of soybean seed or on the grain yield of either soybean or peanut. In the B rate experiment, omitting B depressed grain yield by 50% in sunflower and by 40% to 80% in black gram, induced B deficiency symptoms in green gram and the hollow heart symptom in peanut kernels, but had not significant effect on the grain yield of soybean, peanuts, rice, or wheat. B deficiency apparently depressed grain yield in black and green gram by delaying or inhibiting reproductive development thus reducing pod set.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1573-5036
    Keywords: black gram ; boron deficiency ; hollow heart ; peanut ; soybean cultivars
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The susceptibility of soybean cultivars (cvs) to boron (B) deficiency was examined in three experiments on a Typic Tropaqualf in Northern Thailand: one experiment also included peanut cv Tainan 9 and black gram cv Regur. Without added B (B0), B deficiency depressed seed yield by 60% in soybean cv NW1 compared with 30% in cv SJ5, 40% in cv 7016, 45% in peanut, and 93% in black gram. B deficiency also induced a localised depression on the internal surface of one or both cotyledons of some soybean seeds resembling the symptom of ‘hollow heart’ in peanut seeds. It induced 50% hollow heart in peanut, 17% in soybean cv NW1, 5% in SJ5, and 1% in 7016: black gram seeds had no symptoms. Addition of B decreased or eliminated the symptoms. In a comparison of 19 soybean cvs, the incidence of hollow heart symptoms in seeds at B0 varied widely from none in two cvs to 75% in cv Buchanan: cv NW1 showed intermediate susceptibility to B deficiency with 36% hollow heart in its seed while SJ5 was insensitive with 1%. Application of B eliminated hollow heart except from one seed in one cultivar. The results suggest that susceptibility to B deficiency is sufficiently important and variable among soybean genotypes to warrant its inclusion as a selection criterion when breeding cultivars for areas with low soil B.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1573-5036
    Keywords: boron deficiency ; leaf blade elongation ; light ; shading ; solution culture ; Vigna mungo
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The present experiment was undertaken to examine whether shading affects the critical boron (B) concentration for leaf blade elongation in black gram. Six days after germination (D6), black gram seedlings were transferred to 8 pairs of pots containing basal nutrient solution: one pot of each pair contained 1 μM H3BO3 and the other 10 μM H3BO3. On D10, one day after the emergence of the first trifoliolate leaf blade (TF1) and one day before the emergence of TF2, four pairs of pots were shaded, decreasing the light intensity they received in the glasshouse to about 35% of full sunlight compared with 70% received by the unshaded plants. The response to B supply of dry matter (DM) and elongation rate (LBER) of TF2 were less pronounced in shaded than in unshaded plants. Critical B concentrations for LBER in TF2 of black gram were 10 mg B kg-1DM in shaded and 15 mg B unshaded plants, suggesting that shading may have decreased the B requirement for LBER. Thus the present results suggest that light may need to be considered when setting critical values for the diagnosis of B deficiency in black gram.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1573-5036
    Keywords: Arachis hypogaea ; Bradyrhizobium sp. (Arachis) ; (L.), Fe deficiency ; Fe-efficient strains ; N2 fixation ; nodulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The effects of Bradyrhizobium (strains NC92 and TAL1000) and Fe supply on nodulation and nitrogen fixation of two peanut (Arachis hypogaea L.) cultivars (cv. Tainan 9 (Fe inefficient) and cv. 71-234 (Fe efficient)) grown under Fe deficient conditions (imposed by adding 40% CaCO3 to a ferruginous soil) were examined in a glasshouse experiment. When inoculated with TAL1000 without Fe, both cultivars had low shoot N concentration, very low nodule numbers and weight and no measurable acetylene reduction activity per plant. Inoculation with NC92 without Fe increased all these parameters substantially; addition of Fe with NC92 had no further effect on N concentration but doubled nodule number, weight and acetylene reduction activity per plant. Addition of Fe with TAL1000 increased all parameters to the same level as Fe+NC92, indicating that the poorer nodulation and N2 fixation of TAL1000 in the absence of Fe, resulted from a poorer ability in getting its Fe supply from the alkaline soil. The nodules from all treatments with measurable activity had the same specific acetylene reduction activity suggesting that Fe deficiency limited nodule development. The results support previous suggestions that Bradyrhizobium strains differ greatly in their ability to obtain Fe from soils and that selection of Fe efficient strains could complement plant breeding in the selection of legume crops for Fe deficient soils.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1573-5036
    Keywords: bacteroid ; black gram (Vigna mungo L.) ; leghaemoglobin ; molybdenum ; nodule initiation ; N2 fixation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In legumes, both increases and decreases in nodule number in response to Mo deficiency have been reported, but reasons for the different responses have not been proposed. The present study examined nodule initiation and development in black gram seedlings using two levels of seed Mo to induce Mo deficiency. In the first 11 days after inoculation, low levels of Mo in seed had no effect on nodule initiation or the number of nodules. At 13 days after inoculation, low Mo in seed depressed bacteroid concentration, leghaemoglobin concentration, nodule number and nodule fresh weight. Acetylene reduction activity was delayed by 2 days in plants grown from low Mo seed. We suggest that the delay in N2 fixation in plants grown from low Mo seed was due to slower incorporation of Mo of soil origin into nitrogenase. We further suggest that restricted supply of essential metabolites to the nodules on plants from low Mo seed resulted in the slower maturation of early initiated nodules and the repression of formation of new nodules.
    Type of Medium: Electronic Resource
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