Productivity of sunflower hybrides depending on long terms

Bulletin of Kharkiv National Agrarian University named after V.V. Dokychaiev. The series “Crop production, selection and seed production, fruit and vegetable growing” Pub Date : 2019-06-25 DOI:10.35550/visnykagro2019.01.057

V. G. Mikheev, A. V. Molokov

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Abstract

The results of the observations on the influence of sowing dates of the studied hybrids on sunflower grain yield capacity are highlighted. The largest number of plants was formed by the studied sunflower hybrids at sowing in the optimal time in the crops of the hybrid NK Delphi - 57 thousand pieces/ha, the hybrid NK Rocky - 67 thousand pieces/ha. Under the influence of different sowing dates, the height of plants increased and fluctuated in the hybrid NK Delphi from 164 to 186 cm, in the hybrid NK Rocky - from 123 to 145 cm. NK Delphi was significantly inferior in the level of yield of the hybrid NK Rocky, the difference was 0,56 t/ha - in 2013 and 0,64 t/ha - in 2014. Sowing in the optimal time significantly exceeded the yield of sunflower for all studied hybrids compared to sowing in the early and late period, the difference was 0,27 and 0,45 t/ha - in 2013 and 0,27 t/ha - in 2014. Key words: sunflower, hybrid, sowing dates, yield, grain quality.

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向日葵杂交种的长期生产力

重点介绍了杂交品种播期对向日葵籽粒产量影响的观察结果。在最佳播种时间播种的向日葵杂交种中，NK Delphi为5.7万株/ha, NK Rocky为6.7万株/ha。在不同播期的影响下，杂交NK德尔菲的株高在164 ~ 186 cm之间，杂交NK洛奇-的株高在123 ~ 145 cm之间呈上升和波动趋势。NK Delphi的产量水平显著低于NK Rocky, 2013年和2014年的差异分别为0.56 t/ha -和0.64 t/ha -。所有杂交品种在最优播期的产量均显著高于早播期和晚播期，2013年和2014年的差异分别为0.27和0.45 t/ha和0.27 t/ha。关键词:向日葵，杂交，播期，产量，籽粒品质

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Bulletin of Kharkiv National Agrarian University named after V.V. Dokychaiev. The series “Crop production, selection and seed production, fruit and vegetable growing”

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