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首页> 外文期刊>Journal of Oilseeds Research >Evaluation of sunflower genotypes for phosphorus acquisition andphosphorus partitioning
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Evaluation of sunflower genotypes for phosphorus acquisition andphosphorus partitioning

机译：向日葵基因型对磷吸收和磷分配的评估

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摘要

Field trials were conducted during winter season of 2010 and 2011 to evaluate a total of 111 (52+59) sunflower genotypes for phosphorus (P) acquisition in Vertisols having low status of available phosphorus (9.8 kg/ha). During the study the best genotypes were selected based on the fol lowing parameters: shoot drymatter yield, seed yield/plant, shoot P content, seed P content and total P removal. In the first year 22 best performing genotypes out of 52 were selected while, 20 genotypes were selectedout of 59 in second year (2011-12). Genotype CMS-42-B had recorded highest P removal (1.71g/plant) followed by KBSH-44 (1.62 g/plant)> 150-R (1.41 g/plant) >ARM-239-B (1.33 g/plant) > GMU-389 (1.31 g/plant) > KBSH-1 (1.30 g/plant) in first year. The phosphorus acquisition in sunflower genotypes depended on their shoot drymatter, seed yield and their P contents. During 2011-12, the highest P removal was recorded in GMU-38 (2.2 g/plant) followed by GMU-128, KBSH-1, KBSH-44, GMU-3, GMU-5, DRSH-1, GMU-116andCMS-42-B in descending order. It was noticed that genotype CMS-42-B was found best in acquiring P in both the years of study with 51% of its uptake was partitioned into seeds in 2010-11 and 52.3% in 2011-12. Though, CMS-42-B had removed lower amounts oftotal phosphorus (1.68 g/plant), it showed high internal distribution of acquired phosphorus towards seed (52.3%) in comparison to genotypes GMU-38, GMU-5 and KBSH-1.
机译：在2010年和2011年冬季进行了田间试验，评估了111种（52 + 59）向日葵基因型在可利用磷水平较低（9.8千克/公顷）的Vertisol中获取磷（P）的能力。在研究过程中，根据以下参数选择最佳基因型：茎秆干物质产量，种子产量/植物，茎秆P含量，种子P含量和总P去除量。在第一年（2011-12年），从第一年的52个最佳基因型中选择了22个，而从59个基因型中选择了20个基因型。基因型CMS-42-B的除磷最高（1.71g /株），其次是KBSH-44（1.62 g /株）> 150-R（1.41 g /株）> ARM-239-B（1.33 g /株） >第一年中的GMU-389（1.31克/植物）> KBSH-1（1.30克/植物）。向日葵基因型中磷的吸收取决于其茎干，种子产量和磷含量。在2011-12年度，GMU-38（2.2 g /株）记录的最高P去除量，其次是GMU-128，KBSH-1，KBSH-44，GMU-3，GMU-5，DRSH-1，GMU-116和CMS -42-B降序排列。值得注意的是，在这两个研究年度中，发现基因型CMS-42-B最容易获得磷，其吸收的51％在2010-11年分配为种子，在2011-12年分配为52.3％。尽管CMS-42-B去除了较少量的总磷（1.68克/株），但与基因型GMU-38，GMU-5和KBSH-1相比，它显示出较高的内部磷向种子内部分布（52.3％）。

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