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  • 1
    Electronic Resource
    Electronic Resource
    Development of Strains with Yellow Seedcoat in Indian Mustard (Brassies juncea Czern. & Coss.) (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 97 (1986), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A mutant with yellow seedcoat colour was isolated by Nayar (1968) in the mustard variety‘Rai-5′. This mutant was crossed to the national check cultivar ‘Varuna’ in order to develop improved strains with yellow seedcoat. Four such strains with yellow seeds were evaluated for their seed yield, yield components and percent oil. Two strains TM-9 and TM-17 were more productive than ‘Varuna’ in seed yield. All the yellow seeded strains showed higher oil percentage as compared to ‘Varuna’. The seedcoat in the yellow seeded strains accounts for 14-15% of the seed weight as compared to 18% in the black seeded ‘Varuna’. The higher proportion of the cotyledons and embryo accounts for the increased oil percentage in the yellow seeded types.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1986.tb01307.x
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  • 2
    Electronic Resource
    Electronic Resource
    Testing for Tolerance to Aphids in Indian Mustard, Brassica juncea (L.) Czern and Coss. (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 112 (1994), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Brassica juncea plants were screened for aphid tolerance using three methods. Seven and 14 days old seedlings grown in wooden trays in a glasshouse were kept between infector trays with heavy aphid infestation. There were no surviving plants in the susceptible genotypes 50 days after sowing but survival rates ranging between 80 and 90 % were observed for selection 44. The progenies of the surviving plants were tested under natural infestation in the field. Plants were scored for leaves without aphids 40 days after sowing, healthy plants at harvest and seed yield in g/m2 For most of these lines, the aphids’ survival, life span and fecundity (nymphs produced per adult) were recorded after introducing five newly-born nymphs on excised fifth leaves cultured in petri dishes. Selections showing greater tolerance to aphids than the check cultivars were identified in the progenies of a cross RLM-514 × T-6342. It was concluded that the excised leaf method can provide a reliable measure of the lines’ reaction to aphids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1994.tb00682.x
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  • 3
    Electronic Resource
    Electronic Resource
    Selection For Flag Leaf Stomatal Frequency In Bread Wheat (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 110 (1993), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Two Cultivars Of Bread Wheat (Triticum Aestivum L.) Showing Significant Differences In Stomatal Frequency On The Adaxial Surface Of The Flag Leaf Blade, Were Hybridized. Transgressive Segregation For Stomatal Frequency Was Observed In The F2 Generation and Selections Were Made For High and Low Stomatal Frequency. In The F9 Generation Two Selections Had Significantly Higher Frequencies Than The Higher Parent. Heritability For Stomatal Frequency Based On Parent-Progeny Regression Were 42 % (F3—F4) and 81 % (F4—F5). Stomatal Frequency Was Negatively Correlated With The Flag Leaf Blade Area, Mesophyll Cell Size and Grain Size, However, Exceptions Were Observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1993.tb01224.x
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  • 4
    Electronic Resource
    Electronic Resource
    Karyotype Analysis of Sesbania rostrata Brem. (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 100 (1988), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The karyotype of Sesbania rostrata, a species endemic to West Africa, which produces nitrogen fixing, nodules on stem and branches, was analysed. The somatic chromosome number was 12 with two pairs of long, submetacentric and four pairs of short, metacentric chromosomes. The chromosome number in another species S. aculeata, which is well adapted as a green manure crop in India but not capable of stem nodulation, was also 2n = 12. The similarity between the chromosome complements of the two species indicates that they may be cross compatible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1988.tb00232.x
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  • 5
    Electronic Resource
    Electronic Resource
    Variation associated with an Aegilops umbellulata Chromosome Segment incorporated in Wheat (1966)
    [s.l.] : Nature Publishing Group
    Nature 211 (1966), S. 1425-1426 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Seeds of single plants of wheat variety 'Chinese Spring' and of 'Chinese Spring' with the introgressed umbellulata segment (CI 13296) obtained from Dr. E. R. Sears as well as bulk seeds provided by Dr. J. C. Craddock, were used in this investigation. Ten grams of dry seeds (about 12 per cent ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2111425a0
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  • 6
    Electronic Resource
    Electronic Resource
    Purification and characterization of variant alcohol dehydrogenase isozymes from durum wheat (1987)
    Springer
    Biochemical genetics 25 (1987), S. 581-590 
    Details
    ISSN: 1573-4927
    Keywords: alcohol dehydrogenase ; durum wheat ; isozymes ; enzyme purification
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Three alcohol dehydrogenase (ADH) isozymes from embryos of the durum wheat cultivar Bijaga Yellow having the variantAdh-Alb allele were purified using (NH4)2SO4 precipitation, gel filtration, and ion-exchange chromatography. ADH is a dimeric enzyme. The variant isozyme ADH-1-1, which is a homodimer composed of αb monomers, was compared with ADH-1-5 (homodimer composed of βa monomers), the product ofAdh-B1, and the ADH-1-3 isozyme (αbβa heterodimer) on a number of parameters includingK m, substrate specificities, and molecular weights. No appreciable differences among the three isozymes were found, except for the faster electrophoretic mobility of αbαb dimers (ADH-1-1). The results indicate that the variant isozyme is the result of a mutation altering only the charge of the isozyme.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00554359
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  • 7
    Electronic Resource
    Electronic Resource
    Isoenzyme changes accompanying germination of wheat seeds (1969)
    Springer
    Biochemical genetics 3 (1969), S. 207-214 
    Details
    ISSN: 1573-4927
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Electrophoretic patterns of soluble proteins and enzymes during development from dry seed to first leaf were studied in wheat by means of disc electrophoresis. The patterns considered were those of alcohol dehydrogenase (ADH), peroxidase, and nonspecific esterases. Multiple forms (isoenzymes) were found for all these enzymes in dry seeds. The ADH pattern did not change during development. Esterases and peroxidase patterns changed both qualitatively and quantitatively. Increase in the number of peroxidase bands was marked.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00521137
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  • 8
    Electronic Resource
    Electronic Resource
    Adaptation and growth response of Arabidopsis thaliana to deuterium (1968)
    Springer
    Planta 80 (1968), S. 176-184 
    Details
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Arabidopsis seeds were sown aseptically on mineral media containing between 0 and 90% of heavy water (D2O). Initially, a D2O level of over 50% was lethal for the plants. However, after culture for six successive generations on 50% D2O, plants were capable of growing marginally on media containing up to 70% D2O, but not higher. With increasing concentration, deuterium progressively delays germination, slows growth, reduces survival, results in bleaching of the leaves and delays flowering. Pollen fertility is not affected measurably but seed set is reduced with increasing levels of deuteration so that at 70% D2O few seeds were obtained. The viability of the seeds harvested from plants grown on deuterated media is low. No chlorophyll or morphological mutants were observed among a large number of plant progenies. Seeds from plants cultured on D2O media for several generations grow normally on proteated media in the very first generation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00385593
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  • 9
    Electronic Resource
    Electronic Resource
    Alteration of reproductive effort by a monogenic, recessive mutation in jute (Corchorus capsularis L.) (1991)
    Springer
    Theoretical and applied genetics 82 (1991), S. 254-255 
    Details
    ISSN: 1432-2242
    Keywords: Jute ; Reproductive effort ; Monogenic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Reproductive effort (RE) of a day-length neutral mutant TCJ-5, its parent, and two other cultivars of jute (Corchorus capsularis) was estimated as reproductive biomass/aerial biomass. Plant height at flowering and aerial biomass were significantly higher in the mutant, while the reproductive biomass at 55 days after flowering was statistically equal. Therefore, the estimated RE was significantly lower in the mutant compared to the parent and other cultivars. The lower RE of the mutant was due to delayed initiation of flowering and additional vegetative growth in this period. The results show alteration of RE by a recessive mutation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00226222
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  • 10
    Electronic Resource
    Electronic Resource
    Inheritance of powdery mildew (Erysiphe polygoni DC) resistance in mungbean (Vigna radiata L. Wilczek) (1994)
    Springer
    Theoretical and applied genetics 88 (1994), S. 945-948 
    Details
    ISSN: 1432-2242
    Keywords: Mungbean ; Erysiphe polygoni ; Inheritance Powdery mildew ; Resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Detached mungbean (Vigna radiata L.Wilczek) leaves were inoculated with a conidial suspension of a local isolate (TI-1) of the powdery mildew pathogen (Erysiphe polygoni DC) under controlled environment conditions. Based on the latent period and severity of the infection, a rating scale of 0–5 was used to classify the host pathogen interactions. Reactions 0, 1 and 2 were considered resistant and referred to as R0, R1 and R2 while 3, 4 and 5 were classified as susceptible (S). RUM lines (resistant to powdery mildew) and their derivatives are crossed with several susceptible (reaction types 3–5) genotypes and the inheritance of the resistance was studied in the F1, F2 and F3 generations. The results showed that powdery mildew resistance in mungbean is governed by two dominant genes designated as Pm-1 and Pm-2. When both Pm-1 and Pm-2 were present, an R0 reaction was observed after inoculation with TI-1. The resistant reaction was R1 when only Pm-1 was present and R2 in the presence of Pm-2. In the absence of both Pm-1 and Pm-2, susceptible reactions 3, 4 and 5 were observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220800
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