The effect of sugar beet seed treatments on their vigour
The effect of sugar beet seed treatments on their vigour
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甜菜种子处理对其活力的影响
DOI：
10.17221/4121-pse
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发表时间：
2018
影响因子：
2.4
通讯作者：
S. Podlaski
中科院分区：
文献类型：
--
作者：
A. Orzeszko;S. Podlaski
对Jastra、Jamira、PNMono1三个品种的甜菜种子进行摩擦、打底、清洗、打底。所有种子处理方法都改变了果皮的水势、密度、水分和化学物质含量等特性，从而改变了种子水提物的电导率。种子处理也提高了发芽能力和发芽率。在萌发培养基水分过剩和不足的条件下，其效率比在最佳水分条件下更显著。种子初始活力越低，活力提高越大。对种子萌发过程影响最大的是灌种。在萌发过程中，浸渍种子对不同湿度条件的抵抗力最强。不同水分条件下，处理后和摩擦处理后4 d发芽率差异最大，分别为5.1%和7.4%，而对照差异为26.8%。灌浆也引起了种子呼吸强度的增加。摩擦和洗涤可以去除果皮中的化学物质，从而增加水势，从而提高活力。
Sugar beet seeds of three varieties (Jastra, Jamira, PNMono1) were rubbed, primed, washed and primed after rubbing. All used methods of seed treatment changed pericarp characteristics such as water potential, density, moisture and content of chemicals resulting in electrical conductivity of water extract from the seeds. Seed treatments also improved the ability and rate of germination. Their efficiency was more significant in an excess and shortage of water in germination medium than in optimum water conditions. The lower the initial seed vigour, the larger the vigour improvement. Seed priming had the best effect on the course of germination. Primed seeds were most resistant to different moisture conditions during germination. The largest differences in germination ability after four days in different water conditions were 5.1 and 7.4% for primed and primed after rubbing seeds, respectively, while the difference for control ones was 26.8%. Priming also caused an increase in seed respiration intensity. Rubbing and washing removed chemicals from the pericarp, which result-ed in an increase in water potential, and consequently in vigour improvement.