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| Web URL(s): | https://www.jstor.org/stable/23433308?seq=1
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https://www.jstor.org/stable/pdf/23433308.pdf
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| Publication Type:
| Refereed |
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| Author(s): | Nandula, Vijay K.;
Poston, Daniel H.;
Reddy, Krishna N. |
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| Author Affiliation: | Nandula: Mississippi State University; Poston: Pioneer Hi-Bred International, Inc.,; Reddy: USDA-ARS, Stoneville, MS |
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| Title: | Seed germination differences between glyphosate-resistant and -susceptible Italian ryegrass populations |
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| Source: | Seed Technology. Vol. 31, No. 2, 2009, p. 123-133. |
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| Publishing Information: | Lincoln, Nebraska: Association of Official Seed Analysts and Society of Commercial Seed Technologists |
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| # of Pages: | 11 |
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| Keywords: | TIC Keywords: Environmental effects; Germination inhibitors; Growth analysis; Herbicide resistance; Lolium multiflorum; Seedling emergence
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| Abstract/Contents: | "Influence of environmental factors on germinationand emergence of Italian ryegrass [Lolium perenne L. subsp. multiflorum (Lam.) Husn.], including glyphosate-resistant populations, is lacking. Such knowledge would help improve our undestanding of the biology and ecology of this problem species, which could in turn, aid in its management. The objective of this study was to determine the effects of temperature, light, pH, salt and osmotic resistant (R) and susceptible (S) Italian ryegrass populaions. Overall, germination of both populations of Italian ryegrass was highest at 13° C and decreased when temperature increased to 20 or 27° C under both light and dark conditions. Light stimulated germination (57%) compared to darkness (41%) at 13° C, but light had no effect on germination at 20 and 27° C. The resistant population had higher germination (69-87%) compared to the susceptible (37-57%) at a pH range of 407. Seed germination decreased as NaCl concentration increased from 20-160 mM and osmotic potential increased from 0 (distilled water) to -0.8 MPa in both populations. Germination of the R and S populations decreased from 76% to 25% and 67% to 12% respectively, as shikimic acid concentration increased from 0-16 mM. Seedling emergence was highest from seed placed on the soil surface. Seedling emergence was less than 7% from seed planted at a 0.5 cm depth and no seedlings emerged from seed planted below 2.5 cm for both populations. Both populations germinated under a broad range of environmental conditions used in the study, however, the R population was higher than the S population" |
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| Language: | English |
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| References: | 23 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Nandula, V. K., D. H. Poston, and K. N. Reddy. 2009. Seed germination differences between glyphosate-resistant and -susceptible Italian ryegrass populations. Seed Technology. 31(2):p. 123-133. |
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| Web URL(s):
https://www.jstor.org/stable/23433308?seq=1
Last checked: 04/15/2016
Access conditions: Item is within a limited-access website
https://www.jstor.org/stable/pdf/23433308.pdf
Last checked: 04/15/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b3628131 |
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