|Mcgrath, J Mitchell - Mitch|
Submitted to: Annual Beet Sugar Development Foundation Research Report
Publication Type: Research Notes
Publication Acceptance Date: 5/30/2007
Publication Date: 6/19/2007
Citation: Naegele, R., McGrath, J.M. 2007. Segregation for salt tolerant germination among progeny of Ames 3051 selected under salt germination conditions. Annual Beet Sugar Development Foundation Research Report. p. D26-D27.
Technical Abstract: Improved germination of seeds under abiotic stress appears to be one means by which improved stand establishment can be accomplished. Salinity is one such stress that may serve a dual purpose by allowing selection for improved stand establishment as well as obtaining a profitable stand in saline soils, which are becoming more prevalent in some parts of the world. The objective of this study was to examine whether improvement in emergence can be achieved through stress selection. In testing, emergence of seven inter-pollinated progeny was compared to that of the parent Ames 3051 when germinated under stress in the lab. Ames 3051 was chosen based from previous experimental results done in collaboration with Egypt’s Agricultural Genetic Engineering Institute (AGERI). The overall mean of the progeny germination was lower than that of the parent, however, results indicated an apparent segregation for stress germination ability. Improved germination in two of seven progeny tested from Ames 3051 was observed, and suggests perhaps the genetic basis for improved salt tolerance may be inherited in a relatively simple manner. Progeny of the Ames 3051 progeny have again been selected under salt stress, and their progeny will be tested for salt stress germination performance, concomitantly with introgressing into sugar beet breeding materials.