|
| Suitable density of rapeseed transplanted on ridge |
| |
| DOI： |
|
| Hits: 1482 |
| Download times: 666 |
| Abstract: |
| In this experiment，Taking Ningza 1818（Brassica napus L.）as materials， different densities of
transplanting on ridge were set up to study the effects of different densities on the agronomic characters of plant，
pod canopy structure，the amount of dry matter accumulation of each period，seed yield and its component factors.
The results showed that，the treatment of 105 thousand plants per hectare had the highest yield with 4 196.9 kg/hm2.
Through statistical analysis，there was a quadratic curve relationship between seed yield and density. According to the
regression equation，we figured out the suitable density，which was 101.7 thousand plants per hectare，and the most
suitable density range was 95-108.4 thousand plants per hectare. Under the suitable density，rapeseed had a suitable
amount of growth and a reasonable pod canopy structure，besides，the yield component factors coordinated. The
number of population pods in the suitable density was slightly less than that of 120 thousand plants per hectare，but
significantly more than that of 75 thousand plants and 90 thousand plants per hectare. 1000-seed weight，total seed
number，and the amount of dry matter accumulation after flowering under the suitable density were higher than those
of other treatments. |
|
View Full Text
View/Add Comment Download reader |
