Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 47 (1940) > Annual Issue
Document Type
Research
Abstract
A study is being made of the time of initiation and development of the flower bud in three classes of tulips. All floral organs are present in November. The flower bud is twice as large in the earliest (Mendel) class than in the latest (Darwin) class, but the cytological condition in the anthers and ovules is strikingly similar; pollen is in the late quartet to early microspore stage, ovules are very small primordia with no evidence of integuments or megaporocyte. Expansion of flower bud size is in proportion to earliness, pollen development is virtually parallel, and megagamentophyte development is slightly more rapid in the earliest class.
Publication Date
1940
Journal Title
Proceedings of the Iowa Academy of Science
Volume
47
Issue
1
First Page
156
Last Page
156
Copyright
©1940 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Sass, John E.
(1940)
"Flower Bud Development in Some Varieties of Tulip,"
Proceedings of the Iowa Academy of Science, 47(1), 156-156.
Available at:
https://scholarworks.uni.edu/pias/vol47/iss1/23