EFFECT OF SOWING DATE AND DEFOLIATION ON GROWTH AND YIELD OF SUNFLOWER (Helianthus annum L.)
Field experiment on sunflower was conducted during the season 2006 at Al Rashidia field-Mosul city to determine the effect of sowing dates{ 27 March(S1), 20 April (S2) and 10 May (S3) } with leaves defoliation { non-defoliation(Dl),defoliated 4 (D2) and 8 (D3) leaves / plant } at stage pale yellow o...
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| Language: | English |
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College of Agriculture
2008-06-01
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| Series: | Mesopotamia Journal of Agriculture |
| Online Access: | https://magrj.mosuljournals.com/article_26614_2057d6cc29ee49016e123e63e43af5e6.pdf |
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| author | Ayad T. Shaker |
| author_facet | Ayad T. Shaker |
| author_sort | Ayad T. Shaker |
| collection | DOAJ |
| description | Field experiment on sunflower was conducted during the season 2006 at Al Rashidia field-Mosul city to determine the effect of sowing dates{ 27 March(S1), 20 April (S2) and 10 May (S3) } with leaves defoliation { non-defoliation(Dl),defoliated 4 (D2) and 8 (D3) leaves / plant } at stage pale yellow of back head. It used randomized complete block design as split-plot with three replications. The result showed that 27 March of date sowing had a significant superiority on leaf area, no. of seeds / head, wt. of 1000 seeds and oil yield, while defoliation of 4 or 8 leaves had exactly opposed effect except the leaf area. Higher oil and seed yield had reached at(S1), (S2) with (D1) interaction. However, linear relationship was seen between defoliation levels and yield reduction percentage. |
| format | Article |
| id | doaj-art-c75769ff9be64115801a5cce2a2c6723 |
| institution | OA Journals |
| issn | 1815-316X 2224-9796 |
| language | English |
| publishDate | 2008-06-01 |
| publisher | College of Agriculture |
| record_format | Article |
| series | Mesopotamia Journal of Agriculture |
| spelling | doaj-art-c75769ff9be64115801a5cce2a2c67232025-08-20T01:56:13ZengCollege of AgricultureMesopotamia Journal of Agriculture1815-316X2224-97962008-06-0136218519010.33899/magrj.2008.2661426614EFFECT OF SOWING DATE AND DEFOLIATION ON GROWTH AND YIELD OF SUNFLOWER (Helianthus annum L.)Ayad T. ShakerField experiment on sunflower was conducted during the season 2006 at Al Rashidia field-Mosul city to determine the effect of sowing dates{ 27 March(S1), 20 April (S2) and 10 May (S3) } with leaves defoliation { non-defoliation(Dl),defoliated 4 (D2) and 8 (D3) leaves / plant } at stage pale yellow of back head. It used randomized complete block design as split-plot with three replications. The result showed that 27 March of date sowing had a significant superiority on leaf area, no. of seeds / head, wt. of 1000 seeds and oil yield, while defoliation of 4 or 8 leaves had exactly opposed effect except the leaf area. Higher oil and seed yield had reached at(S1), (S2) with (D1) interaction. However, linear relationship was seen between defoliation levels and yield reduction percentage.https://magrj.mosuljournals.com/article_26614_2057d6cc29ee49016e123e63e43af5e6.pdf |
| spellingShingle | Ayad T. Shaker EFFECT OF SOWING DATE AND DEFOLIATION ON GROWTH AND YIELD OF SUNFLOWER (Helianthus annum L.) Mesopotamia Journal of Agriculture |
| title | EFFECT OF SOWING DATE AND DEFOLIATION ON GROWTH AND YIELD OF SUNFLOWER (Helianthus annum L.) |
| title_full | EFFECT OF SOWING DATE AND DEFOLIATION ON GROWTH AND YIELD OF SUNFLOWER (Helianthus annum L.) |
| title_fullStr | EFFECT OF SOWING DATE AND DEFOLIATION ON GROWTH AND YIELD OF SUNFLOWER (Helianthus annum L.) |
| title_full_unstemmed | EFFECT OF SOWING DATE AND DEFOLIATION ON GROWTH AND YIELD OF SUNFLOWER (Helianthus annum L.) |
| title_short | EFFECT OF SOWING DATE AND DEFOLIATION ON GROWTH AND YIELD OF SUNFLOWER (Helianthus annum L.) |
| title_sort | effect of sowing date and defoliation on growth and yield of sunflower helianthus annum l |
| url | https://magrj.mosuljournals.com/article_26614_2057d6cc29ee49016e123e63e43af5e6.pdf |
| work_keys_str_mv | AT ayadtshaker effectofsowingdateanddefoliationongrowthandyieldofsunflowerhelianthusannuml |