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P. N. Mehra
Articles written in Journal of Genetics
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Volume 54 Issue 1 January 1956 pp 165-180
Cytology of conifers. I - With plate 5 and thirty-seven text-figure
The paper deals with a cytological study of forty-one conifer species belonging to fourteen geuera and distributed within the Abietaceae, Taxodiaceae and Cupressaceae. Observations have been made from the squashes of female gametophytes, stem apices, root-tips, young leaves and pollen mother cells. The cytological details of all these species are summarized in Table 1.
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Volume 54 Issue 1 January 1956 pp 181-185
Cytology of conifers. II - With eight text-figure
Chromosome numbers in
Podocarpus falcatus (2n = 24),P. gracilior (n = 12, 2n = 24),P. latifolia (n = 11, 2n = 22) andP. macrophyllus var.Maki (n = 19, 2n = 38) have been recorded. Nothing conclusive can be said as to whether the chromosome number has increased or decreased or both increased and decreased during the course of evolution of the genus. -
Volume 55 Issue 2 July 1957 pp 379-393
Cytology of hymenophyllaceae - With plates 14–17 and twenty text-figures
Ten members of the family Hymenopllyllaceae distributed mostly in the Darjeeling Himalayas have been cytologically investigated.
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Volume 55 Issue 2 July 1957 pp 394-396
Cytology of
Gnetum Ula brongn - With plate 18 and four text-figuresEleven bivalents were observed in the meiosis of microsporocytes of
Gnetum ula . -
Volume 56 Issue 2 May 1959 pp 296-313
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Journal of Genetics
Volume 100, 2021
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Journal of Genetics | News
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Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
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