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Plant Sciences

Pollen

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Articles 61 - 68 of 68

Full-Text Articles in Life Sciences

Plants And Asthma, Robert Dunlop Royce Jan 1961

Plants And Asthma, Robert Dunlop Royce

Journal of the Department of Agriculture, Western Australia, Series 4

ASTHMA is defined in the dictionary as being a disease characterised by recurring attacks of difficulty in breathing, and the causes are stated to include the inhalation of dust, or the odour of plants, flowers or animals.

Hay fever is a similar condition and this too, is caused by plants, usually at the time of flowering, when large quantities of pollen are produced.


The Significance Of Xenia Effects On The Kernel Weight Of Corn, T. A. Kiesselbach Jun 1960

The Significance Of Xenia Effects On The Kernel Weight Of Corn, T. A. Kiesselbach

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

The purpose of this paper is to appraise the xenia effects of the pollen parent on the kernel weight of corn (Zea mays L.), and to interpret so far as possible their genetic, physiologic and applied significance. The conclusions will be based on local experiments and a review of the literature.


A Comparison Of The Hyde And Durham Air-Borne Pollen Collecting Shelters, A. Orville Dahl, John R. Rowley Jan 1957

A Comparison Of The Hyde And Durham Air-Borne Pollen Collecting Shelters, A. Orville Dahl, John R. Rowley

Journal of the Minnesota Academy of Science

No abstract provided.


A Preliminary Pollen Study From A Fossil Bison Site In St. Paul, Minnesota, Joanne Rowley Jan 1957

A Preliminary Pollen Study From A Fossil Bison Site In St. Paul, Minnesota, Joanne Rowley

Journal of the Minnesota Academy of Science

No abstract provided.


Verical Migration Of A Spherical And Aspherical Pollen In A Sphagnum Bog, John R. Rowley, Joanne Rowley May 1956

Verical Migration Of A Spherical And Aspherical Pollen In A Sphagnum Bog, John R. Rowley, Joanne Rowley

Journal of the Minnesota Academy of Science

No abstract provided.


Pollen Evidence, A. Orville Dahl May 1953

Pollen Evidence, A. Orville Dahl

Journal of the Minnesota Academy of Science

No abstract provided.


The Effects Of Thermal-Neutron Irradiation Of Maize And Barley Kernels, John W. Schmidt, E. F. Frolik Jan 1951

The Effects Of Thermal-Neutron Irradiation Of Maize And Barley Kernels, John W. Schmidt, E. F. Frolik

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

It is the purpose of this paper to report the effects of thermal-neutron irradiation of maize and barley kernels on subsequent germination, plant establishment, and early plant development. Comparisons are made with equivalent neutron treatments of maize pollen, results of which have been reported in part in previous publications.


The Immediate Effect Of Gametic Relationship And Of Parental Type Upon The Kernel Weight Of Corn, T. A. Kiesselbach Dec 1926

The Immediate Effect Of Gametic Relationship And Of Parental Type Upon The Kernel Weight Of Corn, T. A. Kiesselbach

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

This investigation to determine the relation of the kernel weight of corn to the source of pollen with which it was fertilized has been made to answer several questions of both practical and technical interest: (1) To what extent is kernel weight affected in the current crop by the "breadth of breeding" or the gametic relationship? (2) What is the relation of the diversity of parental type to the immediate effect of foreign pollen upon the kernel weight of corn? (3) Is the immediate effect of cross-fertilization upon the kernel weight of sufficient importance to justify the annual mixing of …