| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Seed growth and development is an important part of the yield production process in grain crops. Experiments were conducted in the field for 2 yr to determine the seed growth characteristics of soybean [Glycine max (L.) Merr.] genotypes that varied widely the duration of seed fill. Fifty-nine genotypes were grown in 1982 on a Donerail silt loam soil (fine, mixed, mesic Typic Argiudolls) and measurements of seed growth rate (SGR), final seed size (FSS), and effective filling period (EFP) were made. The 59 genotypes exhibited a wide range in SGR, FSS, and EFP. Although SGR and FSS were significantly correlated (r = 0.76**, significant at the 0.01 probability level), subsets of genotypes could be identified that exhibited a wide range in FSS with no variation in SGR. In 1983, seven genotypes (six plant introductions and one cultivar) were selected, on the basis of the 1982 data, to have a relatively similar SGR but a wide range in FSS and EFP. These genotypes were grown on a Maury silt loam soil (fine, mixed, mesic Typic Palendalfs). Fruit samples were taken at weekly intervals to characterize seed development. Cotyledon cell numbers were measured on selected cultivars in 1982 and 1983. For genotypes that differed in EFP, the patterns of dry matter accumulation and seed moisture changes with time were similar to those previously reported. The number of cotyledon cells per unit mass of seed decreased as FSS increased indicating that differences in cell size were associated with the differences in seed size in these genotypes. These data indicate that variation in FSS among genotypes can be associated with either variation in SGR and/or filling period duration.
Key Words: Glycine max (L.) Merr. • Seed growth rate • Effective filling period • Cotyledon cell number • Plant introductions • Cell size
2 Graduate research assitant, professor, and assistant professor, Dep. of Agronomy, Univ. of Kentucky, Lexington, KY 40546-0091.
Received for publication May 12, 1986.
This article has been cited by other articles:
|
|
 |
|
  V. O. Sadras and D. B. Egli Seed Size Variation in Grain Crops: Allometric Relationships between Rate and Duration of Seed Growth Crop Sci., March 19, 2008; 48(2): 408 - 416. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. L. Gambin and L. Borras Sorghum Kernel Weight: Growth Patterns from Different Positions within the Panicle Crop Sci., January 31, 2005; 45(2): 553 - 561. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P. Pedersen and J. G. Lauer Response of Soybean Yield Components to Management System and Planting Date Agron. J., September 1, 2004; 96(5): 1372 - 1381. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 L. BORRAS, M. E. WESTGATE, and M. E. OTEGUI Control of Kernel Weight and Kernel Water Relations by Post-flowering Source-sink Ratio in Maize Ann. Bot., June 1, 2003; 91(7): 857 - 867. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. J. Boote, J. W. Jones, W. D. Batchelor, E. D. Nafziger, and O. Myers Genetic Coefficients in the CROPGRO-Soybean Model: Links to Field Performance and Genomics Agron. J., January 1, 2003; 95(1): 32 - 51. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. P. Mathew, S. J. Herbert, S. Zhang, A. A.F. Rautenkranz, and G. V. Litchfield Differential Response of Soybean Yield Components to the Timing of Light Enrichment Agron. J., November 1, 2000; 92(6): 1156 - 1161. [Abstract] [Full Text]
|
|
|
|
|
|
D.F. Curtis, J.W. Tanner, B.M. Luzzi, and D.J. Hume Agronomic and Phenological Differences of Soybean Isolines Differing in Maturity and Growth Habit Crop Sci., November 1, 2000; 40(6): 1624 - 1629. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Vadose Zone Journal | |||
| Journal of Natural Resources and Life Sciences Education |
Soil Science Society of America Journal | ||||
| Journal of Plant Registrations | Journal of Environmental Quality |
The Plant Genome | |||
