Faba bean (Vicia faba L.) varieties reveal substantial and contrasting organic phosphorus use efficiencies (PoUE) under symbiotic conditions

IF 2.6 3区农林科学 Q1 AGRONOMY

Journal of Plant Nutrition and Soil Science Pub Date : 2023-11-14 DOI:10.1002/jpln.202300198

Frank K. Amoako, Ghulam Jillani, Saad Sulieman, Karl H. Mühling

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引用次数: 1

Abstract

Background

The excessive use of inorganic P (Pi) in soils is alarming as it is causing numerous environmental problems and may lead to the depletion of rock phosphate reserves earlier than expected. Hence, to limit the over-dependence on Pi, there is the need to investigate organic phosphorus (Po), which is the dominant P form of soil P pool, as an alternate P source for plant growth.

Aim

The present study seeks to investigate organic P use efficiency of eight varieties of faba bean grown symbiotically.

Methods

The plants were grown in pots (6 kg soil) under greenhouse condition with three P source, namely, phytic acid (organic P, Po), KH₂PO₄ (inorganic P, Pi), and no-P. The P was applied at the rate of 1.79 g kg⁻¹ soil.

Results

The plants grown with Po and Pi produced similar amounts of root, shoot, and total dry matters. Despite producing statistically similar dry matters, P uptake by Pi-fertilized plants was twofold higher than by Po-fertilized plants. Meanwhile, Pi differed significantly from Po in terms of nodulation characteristics such as nodule dry biomass and individual nodule dry biomass. However, Po varied significantly from Pi in P utilization and acquisition efficiencies. Principal component analysis of Pi and Po revealed no significant variation and close association, confirming the nonsignificant differences between the two P treatments. Among the varieties tested, Tiffany tended to accumulate more dry matter, coupled with highest organic P utilization efficiency (0.48 g mg⁻¹) as well as the highest organic P beneficiary factor (80%).

Conclusion

These results provide a solid basis for further comparisons at physiological, biochemical, and molecular levels between Tiffany (Po-efficient) and Fuego (Po-inefficient) varieties, offering deep insights into and making it easier to understand the mechanisms that allow soil Po to be utilized under symbiotic conditions.

Abstract Image

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蚕豆(Vicia Faba L.)品种在共生条件下显示出大量和不同的有机磷利用效率

土壤中无机磷(Pi)的过量使用引起了许多环境问题，并可能导致磷矿储量提前枯竭，这令人担忧。因此，为了限制对磷的过度依赖，有必要研究作为土壤磷库中主要磷形式的有机磷(Po)作为植物生长的替代磷源。目的研究8个共生蚕豆品种对有机磷的利用效率。方法在温室条件下盆栽(6 kg土)，植酸(有机磷，Po)、KH2PO4(无机磷，Pi)和无磷3种磷源。施磷量为1.79 g kg - 1土壤。结果Po和Pi的根、茎和总干物质含量相近。尽管产生的干物质在统计上相似，但施过pi肥的植株对P的吸收是施过po肥植株的两倍。同时，在根瘤干生物量和单根干生物量等结瘤特征方面，Pi与Po差异显著。然而，在磷利用率和获取效率方面，Po与Pi差异显著。主成分分析显示，Pi和Po无显著差异，且呈密切相关，证实了两种P处理间差异不显著。试验品种中，蒂芙尼的干物质积累量较大，有机磷利用效率最高(0.48 g mg−1)，有机磷受益系数最高(80%)。结论本研究结果为进一步在生理生化和分子水平上比较Tiffany(高效磷品种)和Fuego(低效磷品种)提供了坚实的基础，为深入了解土壤磷在共生条件下的利用机制提供了依据。

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来源期刊

Journal of Plant Nutrition and Soil Science 农林科学-农艺学

CiteScore

4.70

自引率

8.00%

发文量

审稿时长

8-16 weeks

期刊介绍： Established in 1922, the Journal of Plant Nutrition and Soil Science (JPNSS) is an international peer-reviewed journal devoted to cover the entire spectrum of plant nutrition and soil science from different scale units, e.g. agroecosystem to natural systems. With its wide scope and focus on soil-plant interactions, JPNSS is one of the leading journals on this topic. Articles in JPNSS include reviews, high-standard original papers, and short communications and represent challenging research of international significance. The Journal of Plant Nutrition and Soil Science is one of the world’s oldest journals. You can trust in a peer-reviewed journal that has been established in the plant and soil science community for almost 100 years. Journal of Plant Nutrition and Soil Science (ISSN 1436-8730) is published in six volumes per year, by the German Societies of Plant Nutrition (DGP) and Soil Science (DBG). Furthermore, the Journal of Plant Nutrition and Soil Science (JPNSS) is a Cooperating Journal of the International Union of Soil Science (IUSS). The journal is produced by Wiley-VCH. Topical Divisions of the Journal of Plant Nutrition and Soil Science that are receiving increasing attention are: JPNSS – Topical Divisions Special timely focus in interdisciplinarity: - sustainability & critical zone science. Soil-Plant Interactions: - rhizosphere science & soil ecology - pollutant cycling & plant-soil protection - land use & climate change. Soil Science: - soil chemistry & soil physics - soil biology & biogeochemistry - soil genesis & mineralogy. Plant Nutrition: - plant nutritional physiology - nutrient dynamics & soil fertility - ecophysiological aspects of plant nutrition.