Germination of Sophora chrysophylla increased by presowing treatment

Author:

Scowcroft, Paul G.

Title:

Germination of Sophora chrysophylla increased by presowing treatment

Periodical:

Res. Note PSW-327

Year:

1978

Pages:

6

Subject:

Sophora chrysophylla Mamane

Summary:

Increasing germination of Sophora chrysophylla seed over current levels is an important step in reforesting portions of the mamane-naio forests on the slopes of Mauna Kea, Hawaii. Three types of seedground, old pod, and new pod, were collected at four different sites and shipped to the U.S. Forest Service's Eastern Tree Seed Laboratory, Macon, Georgia, for germination tests. Seeds were subjected to three stratification regimes-cool-wet, cool-dry, and no stratification. Six seed coat treatments were applied to stratified seed: add soak, mechanical scarification, hot water soak, dry heat, cool water soak, and control. Factorial analyses indicated that among these variables only acid or mechanical scarification of the seed coat was a reliable means of significantly increasing germination. Results were too ambiguous to draw conclusions about the effect of site, seed type, and stratification regime on germination. Because cool-wet stratification caused seed to rot, it should not be used as a presowing treatment.

URL:

http://www.treesearch.fs.fed.us/pubs/41046

Date:

1978

Collection:

Monographs