1. Evaluation of sweet sorghum accessions for seedling cold tolerance using both lab and field cold germination test
- Author
-
Junping Chen, David Pinnow, Gloria Burow, on Tonnis, Ming Li Wang, Hugo E. Cuevas, Phiffie Vankus, Zhanguo Xin, and Jianming Yu
- Subjects
Horticulture ,biology ,Dry weight ,Germination ,Seedling ,Cold tolerance ,food and beverages ,Sowing ,Cultivar ,biology.organism_classification ,Sorghum ,Sweet sorghum - Abstract
Objective: Seedling cold tolerance is one of the important traits for sweet sorghum production. This study is to evaluate the method for identification of sweet sorghum accessions with seedling cold tolerance using both lab cold germination and field early-spring cold planting. Methodology: Sorghum seeds were germinated in growth chamber (under lab cold condition) at a constant 12°C for five weeks. After two weeks, germinated seeds and germination rates were counted and calculated at weekly intervals for four times. The same seed lots for lab cold test were also planted 45 days earlier than the normal planting time in the field (early-spring cold planting). In addition to seedling dry weight, germinated seeds and seed germination rates were also counted and calculated at weekly intervals for three times. Results: In this study, a high correlation coefficient between lab germination rate and field germination rate (R2=0.503, p
- Published
- 2017
- Full Text
- View/download PDF