Paper details

Title:

Genotypes Screening for Cold Tolerance During Germination in Sorghum [Sorghum Bicolor (L.) Moench] for Energy Biomass

Author(s):

Saita, A.A., Patanè, C., Guarnaccia, P.

Document(s):

Abstract:

Within the project "BIOSEA" funded by the Italian Ministry of Agriculture and Forestry (MIPAF), a preliminary laboratory test was carried out with the aim of quantifying the variability for cold tolerance during germination in several cultivars of sweet and fiber sorghum, and defining the limit to the early sowings in the semi­arid Mediterranean environments of Southern Italy through the identification of minimum thermal threshold for seed germination. A genetic diversity in germination response of sorghum, greater at the lowest temperatures (8 and 10°C), was ascertained. Sweet types appeared more sensitive than fiber types to low temperature during germination. Base temperature varied with cultivar from 6.08°C to 10.68°C. The genetic variation in germination response to low temperature during germination is useful for the identification of genotypes of sorghum suitable to early sowings in semi­arid areas. In particular, criteria for selection are low base temperature and low thermal time requirements that if associated, ensure adequate seedling establishment standards when early sowings (March­April) are adopted in Mediterranean environment.

Keywords:

genotype, low temperature, sorghum bicolor L. Moench, germination

Topic:

Biomass Resources

Subtopic:

Energy crops (session 5)

Event:

19th European Biomass Conference and Exhibition

Session:

VP1.3.5

Pages:

552 - 555

ISBN-13:

978-88-89407-55-4

ISBN-10:

88-89407-55-7

Paper DOI:

10.5071/19thEUBCE2011-VP1.3.5

Price:

FREE