Use of belowground growing degree days to predict rooting of dormant hardwood cuttings of Populus

Ronald S. Zalesny Jr.; E.O. Bauer; Don Riemenschneider

Treesearch

Use of belowground growing degree days to predict rooting of dormant hardwood cuttings of Populus

Informally Refereed

Authors:

Ronald S. Zalesny Jr., E.O. Bauer, Don Riemenschneider

Year:

2004

Type:

Scientific Journal

Station:

Northern Research Station

Source:

Silvae Genetica. 53: 154-160.

Download (PDF 294 KB)

Download (PDF 294 KB): https://research.fs.usda.gov/download/treesearch/13255.pdf

Abstract

Planting Populus cuttings based on calendar days neglects soil temperature extremes and does not promote rooting based on specific genotypes. Our objectives were to: 1) test the biological efficacy of a thermal index based on belowground growing degree days (GDD) across the growing period, 2) test for interactions between belowground GDD and clones, and 3) identify beneficial planting windows based on combinations of genotypes and belowground GDD. We tested two clones of Populus deltoides Bartr. ex Marsh (D133, D134) and four hybrid clones of P. deltoides x P. maximowiczii A. Henry (DM101, DM105, NC14105, NC14107).

Keywords

Populus deltoides, P maximowiczii, hybrid poplar, soil temperature, genotype x environment interaction

Citation

Zalesny, R.S., Jr.; Bauer, E.O.; Riemenschneider, D.E. 2004. Use of belowground growing degree days to predict rooting of dormant hardwood cuttings of Populus. Silvae Genetica. 53: 154-160.