Table 6.
Effects of row-type (RT, single, S or twin, T), seeding rate (SR, seed m–2), and planting date on seed protein, oil, fatty acids (g kg–1), sucrose (Suc), stachyose (Stac), glucose (Glu) (mg g–1), boron (B, mg kg–1), phosphorus (P, g kg–1), and iron (Fe, mg kg–1) in soybean in Sharkey clay soil in 2010 at Stoneville, MS, USA.
Planting | RT | SR | Protein | Oil | Oleic | Linolenic | Suc | Stac | Glu | B | P | Fe |
---|---|---|---|---|---|---|---|---|---|---|---|---|
April | 20 | 419 | 231 | 279 | 66.3 | 23.8 | 38.3 | 1.6 | 28.1 | 3.6 | 47.8 | |
S | 30 | 424 | 227 | 276 | 62.5 | 23.3 | 39.3 | 1.8 | 36.8 | 3.4 | 57.0 | |
40 | 421 | 230 | 282 | 60.7 | 23.8 | 42.3 | 2.6 | 33.9 | 3.5 | 52.8 | ||
50 | 423 | 228 | 275 | 69.7 | 25.3 | 42.8 | 3.4 | 42.1 | 3.4 | 57.3 | ||
LSD | 2.80 | 1.90 | 4.70 | 2.40 | 3.40 | 2.20 | 0.21 | 1.30 | 0.10 | 1.40 | ||
20 | 411 | 231 | 278 | 59.3 | 23.5 | 41.8 | 2.1 | 37.2 | 3.6 | 54.3 | ||
T | 30 | 423 | 226 | 289 | 64.2 | 21.5 | 44.3 | 2.0 | 27.0 | 3.4 | 53.0 | |
40 | 421 | 230 | 270 | 63.8 | 24.0 | 40.8 | 3.4 | 45.3 | 3.4 | 55.5 | ||
50 | 421 | 228 | 284 | 66.1 | 22.0 | 40.5 | 2.3 | 30.5 | 3.3 | 55.0 | ||
LSD | 2.60 | 1.90 | 4.90 | 2.40 | 2.90 | 1.70 | 0.30 | 5.00 | 0.05 | 1.30 | ||
May | 20 | 442 | 215 | 281 | 64.5 | 26.0 | 42.5 | 1.9 | 29.9 | 3.3 | 48.3 | |
S | 30 | 437 | 215 | 275 | 65.8 | 26.0 | 39.8 | 2.0 | 37.2 | 2.2 | 57.0 | |
40 | 445 | 214 | 277 | 66.4 | 35.5 | 43.3 | 2.5 | 32.1 | 3.2 | 53.3 | ||
50 | 443 | 212 | 289 | 70.7 | 27.5 | 40.3 | 3.8 | 34.3 | 3.4 | 52.5 | ||
LSD | 2.41 | 1.50 | 5.60 | 2.80 | 1.80 | 2.00 | 0.14 | 1.20 | 0.13 | 1.50 | ||
20 | 437 | 217 | 278 | 68.5 | 33.3 | 37.5 | 1.9 | 36.8 | 3.4 | 56.0 | ||
T | 30 | 438 | 215 | 287 | 66.8 | 24.5 | 37.8 | 1.9 | 26.3 | 2.3 | 44.0 | |
40 | 437 | 216 | 284 | 68.2 | 34.3 | 38.3 | 3.7 | 35.3 | 3.3 | 54.0 | ||
50 | 440 | 216 | 282 | 65.5 | 33.5 | 42.0 | 1.7 | 35.5 | 3.4 | 43.5 | ||
LSD | 2.20 | 1.70 | 7.60 | 2.40 | 1.60 | 1.90 | 0.19 | 0.07 | 1.50 | |||
June | 20 | 419 | 210 | 286 | 72.4 | 35.3 | 42.3 | 1.8 | 29.6 | 2.4 | 41.5 | |
S | 30 | 431 | 213 | 295 | 66.8 | 29.3 | 40.3 | 1.6 | 36.8 | 2.5 | 43.8 | |
40 | 436 | 203 | 276 | 68.7 | 26.3 | 38.0 | 2.7 | 35.2 | 2.4 | 43.5 | ||
50 | 438 | 206 | 284 | 69.8 | 25.5 | 39.0 | 3.5 | 37.0 | 3.4 | 47.8 | ||
4.70 | 2.20 | 4.90 | 2.20 | 2.10 | 1.80 | 0.20 | 1.10 | 0.08 | 2.30 | |||
20 | 430 | 210 | 278 | 69.0 | 32.3 | 36.5 | 2.0 | 34.8 | 2.2 | 45.3 | ||
T | 30 | 437 | 207 | 275 | 69.4 | 32.0 | 38.8 | 1.9 | 24.8 | 2.5 | 43.8 | |
40 | 435 | 203 | 276 | 65.1 | 36.3 | 44.3 | 3.5 | 34.0 | 3.3 | 43.8 | ||
50 | 437 | 203 | 278 | 67.5 | 24.8 | 38.8 | 1.7 | 39.3 | 3.5 | 47.0 | ||
LSD | 2.60 | 2.10 | 2.80 | 2.60 | 2.70 | 2.40 | 2.19 | 1.60 | 0.11 | 1.40 |
Means were separated by Fisher’s least significant difference LSD (0.05).