Prüfung verschiedener Leindottersorten auf ihre Ertragsfähigkeit in sommertrockenen Anbaugebieten
| Site: | Auggen |
| soil: pH 6,8; 1,7 % org. matter; nutrient in mg/100g soil: P2O5 21; Mg 14; N 19 kg/ha (0-60 cm) |
Precipitation 1997:
|
1 9 9 7 |
Jan |
Feb |
Mrz |
Apr |
May |
Jun |
Jul |
Aug |
Sept |
Oct |
Nov |
Dec |
|
M ü l l h e i m (near Auggen) |
||||||||||||
|
mm |
22,5 |
39,3 |
11,8 |
36,0 |
41,0 |
149,8 |
60,8 |
39,3 |
69,8 |
50,0 |
58,0 |
|
In 1997 there were low precipitation in spring which influenced emergence and especially the development of spring crops negatively.
Trial: 10 m² plots, 4 repetitions, split plot
| Varieties | Date of Sowing | Seed
dens. seed/m² |
Row dist.cm | Fertilization (kg/ha) | Weed Control | Harvest | ||
|---|---|---|---|---|---|---|---|---|
| N | P2O5 | K2O | Herbicide | |||||
| 16/04/97 | 05/03/97 | 05/03/97 | 01/04/97 | |||||
| 7 | 02/04/97 | 600 | 12 | 100 | 64 | 120 | ELANCOLAN (Trifluralin) 2 l/ha | 30/07/97 |
| Variety | Emergence | Flowering begin | Status at Flowering | Plants/m² | g TSW | Lodging | Deseases (1=low; 9=high) | ||
|---|---|---|---|---|---|---|---|---|---|
| date | (1=late, 9=early) | (1=low, 9=high) | mildew | other fungi | |||||
| 19/06/97 | 04/07/97 | 04/07/97 | |||||||
| 1 | 24/04/97 | 7 | 03/06/97 | 7 | 275,0 | 1,2 | 1 | 3 | 4 |
| 2 | 24/04/97 | 8 | 03/06/97 | 8 | 408,3 | 1,6 | 1 | 2 | 3 |
| 3 | 24/04/97 | 8 | 03/06/97 | 8 | 275,0 | 1,4 | 1 | 3 | 4 |
| 4 | 24/04/97 | 8 | 03/06/97 | 8 | 314,6 | 1,5 | 1 | 3 | 3 |
| 5 | 24/04/97 | 7 | 03/06/97 | 8 | 333,3 | 1,3 | 1 | 4 | 3 |
| 6 | 24/04/97 | 8 | 03/06/97 | 8 | 322,9 | 1,3 | 1 | 4 | 3 |
| 7 | 24/04/97 | 7 | 03/06/97 | 7 | 237,5 | 1,0 | 1 | 3 | 3 |
In 1997 no lodging was observed. The variety 2 with the highest (but not significantly) yield also showed the highest plant density.
Grain yield of 7 investigated varieties - Germany 1997
The yield of the 7 tested varieties (summer crops) in 1997 was on the average almost 23 dt/ha (91% DM; not purified). There was no significant difference between the varieties observed (Newman-Keuls-Test; alpha = 0,05). The TSW shows higher differences between the varieties than the yield.