Contribution to Improving the Chickpea (Cicer arietinum L.) Efficiency in Low-Phosphorus Farming Systems: Assessment of the Relationships between the P and N Nutrition, Nodulation Capacity and Productivity Performance in P-Deficient Field Conditions

被引:3
|
作者
Djouider, Souad Insaf [1 ,2 ]
Gentzbittel, Laurent [1 ,3 ]
Jana, Raghavendra [3 ]
Rickauer, Martina [1 ]
Ben, Cecile [1 ,3 ]
Lazali, Mohamed [2 ]
机构
[1] Univ Toulouse, Lab Ecol Fonct & Environm, CNRS, F-31062 Toulouse, France
[2] Univ Djilali Bounaama Khemis Miliana, Lab Rech Eau Roche & Plantes, Route Theniet Had, Khemis Miliana 44225, Algeria
[3] Skolkovo Inst Sci & Technol, Moscow 121205, Russia
来源
AGRONOMY-BASEL | 2022年 / 12卷 / 12期
关键词
P use efficiency; legumes; nitrogen-fixing symbiosis; plant nutrition; low-input farming systems; plant breeding; NITROGEN APPLICATION; GENOTYPES; PHOSPHATE; FIXATION; YIELDS;
D O I
10.3390/agronomy12123150
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Chickpea (Cicer arietinum L.), the third largest produced pulse worldwide, is primarily grown on marginal soils often characterized by a phosphorus (P)-deficiency that severely hampers yields. The objectives of the study are to investigate the relationships between the P-acquisition, P-use efficiency (PUE) and the agronomical performances towards the developing varieties tolerant to the P-deficiency. We evaluate the impact of the P-deficiency on the growth, yield, germination and nodulation performances of seven chickpea cultivars grown in fields with a low-P soil availability, during two seasons. The adaptive mechanisms to maintain the efficiency of the physiological processes, such as the nitrogen (N)-fixing nodule function, germinability, and possibly photosynthesis, are revealed. In contrast, the large genotypic variation in the yield components, in the P and N acquisition, and in the PUE is observed, supporting the role of the nodules in the P uptake in P-deficient soils. The P-acquisition and utilization efficiencies are genetically decoupled, suggesting designing distinct breeding strategies to promote one or both PUE components. As an outcome, we identify a set of chickpea cultivars adapted to a region with a soil P scarcity, that exhibit efficient N and P metabolism and a superior productivity. This germplasm can be used in breeding programs for low-P input efficient chickpeas. This contributes to the implementation of eco-friendly farming practices while making the most of marginal soils.
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页数:19
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