乌克兰草原向日葵杂交种对作物密度的响应

Q3 Agricultural and Biological Sciences

Helia Pub Date : 2020-07-01 DOI:10.1515/helia-2020-0011

O. Andriienko, K. Vasylkovska, Andrii Andriienko, O. Vasylkovskyi, M. Mostipan, L. Salo

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引用次数: 3

摘要

2018-2019年在乌克兰北部草原用不同成熟度组合(LG 50300、LG 5580、LG 5478、LG 5638、LG 5662)的向日葵杂交种LG 50300进行田间试验，结果表明，早期杂交种LG 50300的密度从5.5万株/公顷降低到7万株/公顷，导致产量下降0.11 tha - 1，含油量下降0.9%。中早杂交种LG 5580的密度导致播种产量下降0.21 t ha - 1，而含油量基本保持不变。另一个中早杂交种LG 5478的产量和含油量随密度的增加而略有变化。研究表明，在播种密度达到7万株/公顷时，播种产量下降0.2 t ha - 1。密度为7万株/公顷的中季杂交种LG 5662的产量提高了0.14 t ha - 1。

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Response of sunflower hybrids to crop density in the steppe of Ukraine

Abstract Field studies conducted in 2018–2019 in the northern Steppe of Ukraine with sunflower hybrids of different maturity groups (LG 50300, LG 5580, LG 5478, LG 5638, LG 5662) showed that the crop density of early-crop hybrid LG 50300 from 55,000 plants/hectare to 70,000 plants/hectare led to a decrease in productivity by 0.11 t ha−1 and a decrease in oil content by 0.9%. The density of middle-early hybrid LG 5580 resulted in a decrease in sowing productivity of 0.21 t ha−1, while oil content remained nearly the same. Another middle-early hybrid LG 5478 showed slight variations in productivity and oil content with an increase of crop density. The study of the mid-season hybrid LG 5038 showed a decrease in sowing productivity by 0.2 t ha−1 with the density up to 70,000 plants/hectare. Mid-season hybrid LG 5662 with density of 70,000 plants/hectare showed productivity increase by 0.14 t ha−1.

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来源期刊

Helia Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

1.00

自引率

0.00%

发文量