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CASUAL observations made by me on the twining of the shoots of the hop suggested that in the first phase of growth (in which the stem extends rapidly and the laterals remain suppressed) the angle made ...
STUDIES of meiosis in male plants of the hop Humulus lupulus have resulted in conflicting reports on the nature of the sex chromosomes. Winge1 and Jacobsen2 have described an unequal pair of sex ...
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