Natural tetraploid
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Attempts has made to find the inheritance pattern of free threshability and other quantitative traits in emmer wheat has fragile rachis and non-free threshing kernels by crossing a non free threshing variety dicoccum DDK-1025, with two advanced free threshable mutant lines (ML-1 and ML-2) during Rabi 2013. Genetic systems operating in the both the crosses were found different for most of the characters as evident by differences in nature of gene action in these two crosses.
11p chauchaungayxua6 26-06-2020 22 0 Download
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The morphological characteristics, fertility and in vitro germination of natural tetraploid red clover (Trifolium pratense L.) pollen were examined as well as the characteristics of pollen tubes and callose formation. Pollen grains of red clover are tricolporate and usually the germination of pollen is monosphonic.
5p viminotaur2711 30-10-2019 11 0 Download
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The mature female gametophyte in Trifolium pratense L., a natural tetraploid plant, consists of 7 cells: the egg cell, 2 synergids, the central cell, and 3 antipodal cells. This type of mature female gametophyte is known as polygonum. The central cell occupies the largest portion of the mature female gametophyte and the polar nuclei are situated close to the egg apparatus.
5p vi4mua 24-02-2019 23 1 Download
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The main goal of this study was to establish callus cell suspension cultures of Medicago sativa L. ‘Elçi’ and natural tetraploid Trifolium pratense L. and to compare the isoflavone production of the cultures to the original plants. The callus culture was transferred to liquid Murashige and Skoog media (MS3 and MS5) in order to establish the cell suspension cultures.
9p vikimsa 22-02-2019 19 0 Download
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Previous reports of plant regeneration of natural tetraploid T. pratense L. ‘Elçi’ could be realized only through the apical meristem calli. In order to proceed to the production stage, other regeneration methods need to be tried. Aseptic seedlings were used for the production of somatic embryos through various 2,4-D and kinetin trials.
10p vikimsa 22-02-2019 12 1 Download