or fruit production as a consequence of the lack of optimum
pollination conditions (CLARK and FRYER, 1920; ARMSTRONG and WHITE,
1935; VALLEAU, 1918; KVAALE, 1927; and many others). In order to
mini mize the influence of poor pollen producers, systematic
planning of a field planting or an orchard might be necessary.
Above all, the im portant reason for its wide popularity is its
potential use in the com mercial production of hybrid seed. A
male-sterile plant is an effective female for a crossing program
and its employment renders the labori ous procedure of emasculation
superfluous. ]ONES and EMSWELLER (1937) and STEPHENS (1937) were
probably the first to outline a scheme of its application in onion
and sorghum respectively. However certain specific problems have
limited the practicability and hence some of them will be mentioned
in a later seetion (Section VIII). Lately several attempts have
been made to obtain some chemie al method for the artificial
induction of male sterility. However, for a successful approach to
the induction problem a thorough understan ding of various pathways
that bring about pollen abortion in naturally occurring cases,
would be of great value. It may be hoped that data from these
induction experiments alongwith the available biochemi cal analyses
would lead to the emergence and elucidation of useful information
of both theoretical and practical interest.
General
Imprint: |
Springer
|
Country of origin: |
Netherlands |
Release date: |
1959 |
First published: |
1959 |
Authors: |
S.K. Jain
|
Dimensions: |
235 x 155 x 4mm (L x W x T) |
Format: |
Paperback
|
Pages: |
70 |
Edition: |
1959 ed. |
ISBN-13: |
978-9401516853 |
Categories: |
Books >
Earth & environment >
Earth sciences >
General
|
LSN: |
9401516855 |
Barcode: |
9789401516853 |
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