Changes in Senna obstuifolia Germination Requirements over 12 Months under Field Conditions
Figure 1
Senna obtusifolia percentage germination in response to light environment with after-ripening following maturation in late October 2003. One half of the S. obtusifolia seeds were buried in soil 10 cm deep in Spring 2004; therefore, Summer and Fall evaluations included seeds from the soil surface and buried ones. Abbreviations: B: buried; FR: far-red light; NS: nonsignificant; R: red light. Means with different lowercase letters within a month and burial depth are significantly different at .
