Add to ORKGTwenty-nine species of seeds were tried out; of these the following germinated: Betula alba var papyrifera, (Marsh) Spach, Betula fontinalis Sarg., Quercus nigra L., Cinnamomum camphora L., Platanus occidentalis L., Physocarpus opulifolius var intermedius (Rydb.) Robinson Pyrus ioensis L., Cercis canadensis L., Amorpha canescens Pursh., Melia Azedarach L., Cissus ampelopsis Pers., Callicarpa americana L., Prunus Cerasus was collected germinating beneath the trees in April. Seeds of all northern species were wintered out-of-doors, lightly covered on the ground, and transferred to greenhouse about March 3
In 1917 the authors began a study of the germination of trees and shrubs native to Iowa, for the pur...
The North Central Regional Plant Introduction Station\u27s curatorial responsibilities as part of th...
The germination of the seeds of weeds and other plants that reseed themselves is noticeably periodic...
Twenty-nine species of seeds were tried out; of these the following germinated: Betula alba var papy...
For continuation of our studies of germination, there were collected in the fall of 1925 seeds of ab...
The following brief study is a continuation of those previously reported to the academy. In the past...
Several contributions on seedlings have been presented to the Academy, by Dr. Pammel and Miss King. ...
A number of papers upon the germination of trees and shrubs have recently appeared, of which a few m...
The study of germination of seeds of trees and shrubs was continued during the years 1922 and 1923. ...
This paper is the twelfth of a series of germination studies of trees and shrubs, which have appeare...
The seeds and seedlings used in the studies presented in this paper, were collected in southern stat...
The studies for the spring of 1928 are a continuation of previous work and constitute the eleventh c...
In the proceedings of the Iowa Academy of Science, 1917, we published a paper on the germination and...
A study has been made by the Botanical Department of Iowa State College during the past season of th...
In 1917 the authors began a study of the germination of trees and shrubs native to Iowa, for the pur...
The North Central Regional Plant Introduction Station\u27s curatorial responsibilities as part of th...
The germination of the seeds of weeds and other plants that reseed themselves is noticeably periodic...
Twenty-nine species of seeds were tried out; of these the following germinated: Betula alba var papy...
For continuation of our studies of germination, there were collected in the fall of 1925 seeds of ab...
The following brief study is a continuation of those previously reported to the academy. In the past...
Several contributions on seedlings have been presented to the Academy, by Dr. Pammel and Miss King. ...
A number of papers upon the germination of trees and shrubs have recently appeared, of which a few m...
The study of germination of seeds of trees and shrubs was continued during the years 1922 and 1923. ...
This paper is the twelfth of a series of germination studies of trees and shrubs, which have appeare...
The seeds and seedlings used in the studies presented in this paper, were collected in southern stat...
The studies for the spring of 1928 are a continuation of previous work and constitute the eleventh c...
In the proceedings of the Iowa Academy of Science, 1917, we published a paper on the germination and...
A study has been made by the Botanical Department of Iowa State College during the past season of th...
In 1917 the authors began a study of the germination of trees and shrubs native to Iowa, for the pur...
The North Central Regional Plant Introduction Station\u27s curatorial responsibilities as part of th...
The germination of the seeds of weeds and other plants that reseed themselves is noticeably periodic...