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You searched for: All Creators Knowlton, H. E. (Harry E.), 1890- Remove constraint All Creators: Knowlton, H. E. (Harry E.), 1890-
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1. Studies in apple sterility.

Creator Personal:
Knowlton, H. E. (Harry E.), 1890-
Title:
Studies in apple sterility.
Call Number:
P12431
Date:
1927
Description:

Journal article reprint from: Proceedings of American Society for Horticultural Science, 1927.

Subject Topical:
Apples--Physiology., Sterility in plants.
All:
Apples--Physiology., Sterility in plants.

2. Nitrogen fertilization and the keeping quality of apples : a preliminary report.

Creator Personal:
Knowlton, H. E. (Harry E.), 1890-, Hoffman, M. B.
Title:
Nitrogen fertilization and the keeping quality of apples : a preliminary report.
Call Number:
P16997
Date:
1930
Description:
Journal article reprint from: Proceedings of the American Society for Horticultural Science, 1930.
Subject Topical:
Apples--Storage., Apples--Fertilizers.
All:
Apples--Storage., Apples--Fertilizers.

3. The Relation of temperature to pollen tube growth in vitro.

Creator Personal:
Knowlton, H. E. (Harry E.), 1890-, Sevy, H. P.
Title:
The Relation of temperature to pollen tube growth in vitro.
Call Number:
P2855
Date:
1925
Description:
Journal article reprint from: Proceedings of American Society for Horticultural Science, 1925.
Subject Topical:
Pollen tube--Growth.
All:
Pollen tube--Growth.