The effect of weediness by trailing bindweed (Convolvulus arvensis) on the elements of winter wheat productivity
Trailing bindweed (Convolvulus arvensis) was the main weed on the fields sown with winter wheat variety ‘Povolzhskaya 86’. The article considers the effect of various degrees of weediness by trailing bindweed (sparsae, copiosae1, copiosae3) on the main elements of winter wheat productivity. The esti...
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| Format: | Article |
| Language: | Russian |
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Federal State Budgetary Scientific Institution “Agricultural Research Center “Donskoy”"
2018-05-01
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| Series: | Зерновое хозяйство России |
| Subjects: | |
| Online Access: | https://www.zhros.online/jour/article/view/86 |
| _version_ | 1797699580205203456 |
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| author | I. I. Sharapov |
| author_facet | I. I. Sharapov |
| author_sort | I. I. Sharapov |
| collection | DOAJ |
| description | Trailing bindweed (Convolvulus arvensis) was the main weed on the fields sown with winter wheat variety ‘Povolzhskaya 86’. The article considers the effect of various degrees of weediness by trailing bindweed (sparsae, copiosae1, copiosae3) on the main elements of winter wheat productivity. The estimation of the weediness degree has been carried out by the Drude method. The largest losses of yields (15.0-28.0% depending on the year of study) occur with heavy weediness (copiosae3). All three degrees of weediness reduce the main elements of productivity. But the indexes of such elements of productivity as ‘number of kernels per head’ and ‘kernels weight per head’ have increased from 2.6% till 18.0%. Such increase has happened due to the increase of area of nutrition of one plant. The weediness had the largest negative effect on ‘number of productive stems’ and ‘dry tops’ (17.0-28.0%). The weediness by trailing bindweed had an effect on density of winter wheat, on formation of the elements of productivity. Trailing bindweed had a smaller effect on the elements of productivity in the year with optimal stand than in the year with spaced sowings (sparsae). The correlation coefficient for each year of study has been estimated. The dispersion analysis which shows true difference between the control and the variants of the experiment has been conducted. The largest decrease of the indexes occurred in 2014, as the sowings were spaced because of bad wintering; it resulted in weak competitiveness of winter wheat to weeds. Weak competitiveness of winter wheat to trailing bindweed had a negative effect of the main elements of productivity. |
| first_indexed | 2024-03-12T04:09:48Z |
| format | Article |
| id | doaj.art-6313d0001bc347c3922353d63450ae2a |
| institution | Directory Open Access Journal |
| issn | 2079-8725 2079-8733 |
| language | Russian |
| last_indexed | 2024-03-12T04:09:48Z |
| publishDate | 2018-05-01 |
| publisher | Federal State Budgetary Scientific Institution “Agricultural Research Center “Donskoy”" |
| record_format | Article |
| series | Зерновое хозяйство России |
| spelling | doaj.art-6313d0001bc347c3922353d63450ae2a2023-09-03T11:05:32ZrusFederal State Budgetary Scientific Institution “Agricultural Research Center “Donskoy”"Зерновое хозяйство России2079-87252079-87332018-05-0104535786The effect of weediness by trailing bindweed (Convolvulus arvensis) on the elements of winter wheat productivityI. I. Sharapov0ФГБНУ Поволжский научно-исследовательский институт селекции и семеноводства им. П.Н. КонстантиноваTrailing bindweed (Convolvulus arvensis) was the main weed on the fields sown with winter wheat variety ‘Povolzhskaya 86’. The article considers the effect of various degrees of weediness by trailing bindweed (sparsae, copiosae1, copiosae3) on the main elements of winter wheat productivity. The estimation of the weediness degree has been carried out by the Drude method. The largest losses of yields (15.0-28.0% depending on the year of study) occur with heavy weediness (copiosae3). All three degrees of weediness reduce the main elements of productivity. But the indexes of such elements of productivity as ‘number of kernels per head’ and ‘kernels weight per head’ have increased from 2.6% till 18.0%. Such increase has happened due to the increase of area of nutrition of one plant. The weediness had the largest negative effect on ‘number of productive stems’ and ‘dry tops’ (17.0-28.0%). The weediness by trailing bindweed had an effect on density of winter wheat, on formation of the elements of productivity. Trailing bindweed had a smaller effect on the elements of productivity in the year with optimal stand than in the year with spaced sowings (sparsae). The correlation coefficient for each year of study has been estimated. The dispersion analysis which shows true difference between the control and the variants of the experiment has been conducted. The largest decrease of the indexes occurred in 2014, as the sowings were spaced because of bad wintering; it resulted in weak competitiveness of winter wheat to weeds. Weak competitiveness of winter wheat to trailing bindweed had a negative effect of the main elements of productivity.https://www.zhros.online/jour/article/view/86вьюнок полевойозимая пшеницавредоносностьэлементы продуктивностиурожайностьстепени засоренностиколичество продуктивных стеблейсухая наземная массаtrailing bindweed (convolvulus arvensis)winter wheatinfestationelements of productivityproductivityweediness degreenumber of productive stemsdry tops |
| spellingShingle | I. I. Sharapov The effect of weediness by trailing bindweed (Convolvulus arvensis) on the elements of winter wheat productivity Зерновое хозяйство России вьюнок полевой озимая пшеница вредоносность элементы продуктивности урожайность степени засоренности количество продуктивных стеблей сухая наземная масса trailing bindweed (convolvulus arvensis) winter wheat infestation elements of productivity productivity weediness degree number of productive stems dry tops |
| title | The effect of weediness by trailing bindweed (Convolvulus arvensis) on the elements of winter wheat productivity |
| title_full | The effect of weediness by trailing bindweed (Convolvulus arvensis) on the elements of winter wheat productivity |
| title_fullStr | The effect of weediness by trailing bindweed (Convolvulus arvensis) on the elements of winter wheat productivity |
| title_full_unstemmed | The effect of weediness by trailing bindweed (Convolvulus arvensis) on the elements of winter wheat productivity |
| title_short | The effect of weediness by trailing bindweed (Convolvulus arvensis) on the elements of winter wheat productivity |
| title_sort | effect of weediness by trailing bindweed convolvulus arvensis on the elements of winter wheat productivity |
| topic | вьюнок полевой озимая пшеница вредоносность элементы продуктивности урожайность степени засоренности количество продуктивных стеблей сухая наземная масса trailing bindweed (convolvulus arvensis) winter wheat infestation elements of productivity productivity weediness degree number of productive stems dry tops |
| url | https://www.zhros.online/jour/article/view/86 |
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