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Recurrent selection increases seed germination in little bluestem (Schizachyrium scoparium).
- Source :
-
Euphytica . Dec2017, Vol. 213 Issue 12, p1-10. 10p. 3 Charts. - Publication Year :
- 2017
-
Abstract
- Rainfall is often inadequate for satisfactory seed germination and emergence under field conditions. This research was designed to improve the seed germination of six experimental populations of little bluestem [Schizachyrium scoparium (Michx.) Nash]. Two cycle of recurrent selection were used to develop Syn-1 and Syn-2 populations from six experimental Syn-0 populations. Cycle 1 consisted of germinating 3500 open-pollinated seeds of each Syn0 population in water of - 0.8 MPa potential for 7-day. All germinated seeds (approximately 250 for each of the six populations) were selected to create six Syn-1 populations. Cycle 2 selection was similar to Cycle 1, except that Syn-1 populations were used to create six Syn-2 populations. To test the effects of selection, four 50-spikelet samples of the 18 populations were germinated in water of - 0.8 MPa potential for 7-day for two consecutive harvest years. Germination of Syn-1 seeds was 3.7% higher than Syn-0 seeds, and Syn-2 seeds were 16.2% higher than Syn-1 seeds. Thus, it was possible to increase the seed germination of the six little bluestem populations at the water potential used with recurrent selection. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00142336
- Volume :
- 213
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Euphytica
- Publication Type :
- Academic Journal
- Accession number :
- 163718001
- Full Text :
- https://doi.org/10.1007/s10681-017-2067-1