CHANGES IN YIELDING OF VARIETIES OF WINTER WHEAT AND RYEIN VARIETY TESTING IN POLAND
The aim of the study is to determine the significance of varietal progress and changes in level of inputs on changesin yield level of winter wheat and winter rye varieties in conditions of variety testing. The analysis covered the years2006-2016. The data from post-registration varieties testing coo...
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| Format: | Article |
| Language: | English |
| Published: |
Polish Association of Agricultural and Agribusiness Economists
2017-10-01
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| Series: | Annals of the Polish Association of Agricultural and Agribusiness Economists |
| Subjects: | |
| Online Access: | http://rnseria.com/gicid/01.3001.0010.5191 |
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| Summary: | The aim of the study is to determine the significance of varietal progress and changes in level of inputs on changesin yield level of winter wheat and winter rye varieties in conditions of variety testing. The analysis covered the years2006-2016. The data from post-registration varieties testing coordinated by COBORU were used. It was found thatthe yield of winter wheat varieties in varieties testing network increased by 12.5 and 13.8 dt/ha in the analyzed periodrespectively at lower and higher intensity of production. The share of biological progress in observed growth wasestimated at level 60 and 38%, respectively. The average annual increase of yields as a result of biological progresswas determined at level of 0.92 and 0.58%. For rye the yield growth was 7.4 and 8.5 dt/ha, and the share of biologicalprogress in this increase was determined at level of 41 and 32%. The average annual yield increase resulting frombiological progress was 0.50 and 0.38%. The higher effects of biological progress were observed for the lower levelof production inputs. Biological progress in cereal production still plays a significant role in the increase in yield. Forwinter wheat and rye the share was calculated at level 30 to 60% depending on intensity of production and was higherfor wheat. Another important factor in achievement yield increasing is correct technique of production, especiallyproper level of inputs. Under conditions of high-intensity production, the importance of introducing new varietiesdecreases. Taking it into account, research in the field of plant breeding in future should be more strongly orientedtowards obtaining resistance to biotic and abiotic stresses. |
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| ISSN: | 2657-781X 2657-7828 |