Open AccessTítulo en español.
Author(s) -
José Adsuar,
Julio H. López-Rosa
Publication year - 1962
Publication title -
the journal of agriculture of the university of puerto rico/the journal of agriculture of the university of puerto rico
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.123
H-Index - 10
eISSN - 2308-1759
pISSN - 0041-994X
DOI - 10.46429/jaupr.v46i2.12300
Subject(s) - humanities , philosophy
An experiment was conducted using the hot-water treatment at 50° C. for 2 hours for the purpose of determining the tolerance of some commercial sugarcane varieties grown in Puerto Rico to the heat treatment used in the control of the ratoon-stunting disease, as well as the effect on the germination of the different sections of the stem. Three-eyed seed pieces from the top, middle, and bottom sections of the following the canes were used: P.R.980, B.37161, P.O.J.2878, M.336, B.41227, H.328560, B.4362, B.40105, B.37172, and P.R.905. The results were as follows: 1. There were marked differences among the varieties tested in regard to heat tolerance, as reflected by the percentage germination of the heat-treated canes. 2. In general, the middle section tolerated the heat treatment better than the top, whereas the basal section was also more resistant to heat than the top.