Nitrogen and phosphorus assimilation, mobilization and partitioning in rainfed chickpea (Cicer arietinum L.)

Kurdali, F.

doi:10.1016/0378-4290(96)00034-2

Cited by 44 publications

(24 citation statements)

References 38 publications

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“…3). This value is similar to those reported using different methods of N labeling: 70% of the total N of seeds in field-grown peas (Atta et al, 2004), 81% in rain-fed chickpea (Kurdali, 1996), 80% to 90% in soybean (Warembourg and Fernandez, 1985;Grandgirard, 2002), and 73% in bean plants (Westermann et al, 1985). The dynamic quantification of endogenous N fluxes showed that the rate of remobilized N accumulated by one particular seed stratum was, whatever the developmental stage, independent of the rate of N remobilization from the same stratum (Fig.…”

Section: Remobilized N From Vegetative Organs Constituted a Unique N supporting

confidence: 79%

Dynamics of Exogenous Nitrogen Partitioning and Nitrogen Remobilization from Vegetative Organs in Pea Revealed by 15N in Vivo Labeling throughout Seed Filling

et al. 2005

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The fluxes of (1) exogenous nitrogen (N) assimilation and (2) remobilization of endogenous N from vegetative plant compartments were measured by 15 N labeling during the seed-filling period in pea (Pisum sativum L. cv Caméor), to better understand the mechanism of N remobilization. While the majority (86%) of exogenous N was allocated to the vegetative organs before the beginning of seed filling, this fraction decreased to 45% at the onset of seed filling, the remainder being directed to seeds. Nitrogen remobilization from vegetative parts contributed to 71% of the total N in mature seeds borne on the first two nodes (first stratum). The contribution of remobilized N to total seed N varied, with the highest proportion at the beginning of filling; it was independent of the developmental stage of each stratum of seeds, suggesting that remobilized N forms a unique pool, managed at the whole-plant level and supplied to all filling seeds whatever their position on the plant. Once seed filling starts, N is remobilized from all vegetative organs: 30% of the total N accumulated in seeds was remobilized from leaves, 20% from pod walls, 11% from roots, and 10% from stems. The rate of N remobilization was maximal when seeds of all the different strata were filling, consistent with regulation according to the N demand of seeds. At later stages of seed filling, the rate of remobilization decreases and may become controlled by the amount of residual N in vegetative tissues.Pea (Pisum sativum) is an important agricultural crop grown primarily for its high seed protein content. However, the protein yield of the pea crop remains too low and variable between cropping area and years (http://apps.fao/faostat/, http://www.prolea.com/ unip/) to sustain the needs in plant protein of European countries. To extend the pea crop in Europe and to increase use of pea seed in the feed industry, breeders have to develop varieties with better harvest and nitrogen (N) indices. Toward this aim, a better understanding of the processes involved in the elaboration of seed protein content is needed. The final protein yield of seeds depends both upon the genotype and on environmental factors during seed filling (Lhuillier-Soundélé et al., 1999a). Nitrogen accumulation by seeds during filling depends upon the external N supply: soil mineral N assimilation and/or symbiotic fixation of atmospheric N 2 . However, exogenous N cannot generally sustain the high N demand of filling seeds, so endogenous N previously accumulated in vegetative parts is largely remobilized to fulfill this demand (Sinclair and de Wit, 1976;Salon et al., 2001). Seed N concentration is correlated to N availability within plants, and the extent of the contribution of N remobilization to seed N yield varies among legumes: 70% in field-grown pea (Atta et al., 2004), 80% to 90% in soybean (Glycine max; Warembourg and Fernandez, 1985;Grandgirard, 2002), 43% to 94% in rain-fed grown lentil (Lens culinaris; Kurdali et al., 1997), 84% in bean plants (Phaseolus vulgaris;Westermann et al., 1...

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Section: Remobilized N From Vegetative Organs Constituted a Unique N supporting

confidence: 79%

Dynamics of Exogenous Nitrogen Partitioning and Nitrogen Remobilization from Vegetative Organs in Pea Revealed by 15N in Vivo Labeling throughout Seed Filling

et al. 2005

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“…As a result, N balance was negative for all cultivars, ranging between Á32 and Á42 kg N ha (1 . Past research has indicated that at least 50 kg N ha (1 must be fixed by a chickpea crop before a positive N balance occurs (Kurdali 1996;Lo´pez-Bellido et al 2004;Walley et al 2005Walley et al , 2007. In the present study, the negative N balances for chickpea reflect the poor N 2 -fixing ability and the relatively large amounts of N exported by harvested seeds.…”

Section: Cultivar Choice and N Dynamicsmentioning

confidence: 58%

“…Also, residual soil N usually is higher in tilled-fallow systems compared with no-till systems ). Low soil water content reduces nodulation in legumes (Kurdali 1996;Lupwayi and Kennedy 2007), as do high soil N levels (Clayton et al 2004). However, little is known about how cropping systems may interact with residual soil N and rhizobial inoculation in affecting N balance in chickpea.…”

mentioning

confidence: 99%

Nitrogen dynamics of chickpea: Effects of cultivar choice, N fertilization, Rhizobium inoculation, and cropping systems

Gan¹,

Johnston²,

Knight³

et al. 2010

Can. J. Plant Sci.

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. 2010. Nitrogen dynamics of chickpea: Effects of cultivar choice, N fertilization, Rhizobium inoculation, and cropping systems. Can. J. Plant Sci. 90: 655Á666. Understanding N dynamics in relation to cultural practices may help optimize N management in annual legume crops. This study was conducted at six environsites (location )year combinations) in southern Saskatchewan, 2004Á2006, to quantify N uptake, N 2 fixation, and N balance in chickpea (Cicer arietinum L.) in relation to cultivar choice, cropping systems, rhizobial inoculation, and soil N fertility. The cultivars Amit, CDC Anna, CDC Frontier, and CDC Xena were grown at N fertilizer rates of 0, 28, 56, 84, and 112 kg N ha (1 with no Rhizobium and at 0, 28, and 84 kg N ha (1 combined with Rhizobium inoculation, evaluated in both conventional tilled-fallow and continuously cropped no-till systems. Flax was used as a non-N-fixing reference crop. The cultivar CDC Xena had the lowest yield (1.57 Mg ha(1 ) and seed N uptake (54.4 kg N ha (1 more N into the seed and 5 kg ha(1 more N into the straw than chickpea that was not inoculated. The amount of N fixed as a percentage of total N uptake was 15% for non-inoculated chickpea and 29% for inoculated chickpea, resulting in negative N balance regardless of cropping system. Increasing N fertilizer rates decreased NUE, with the rate of decrease being greater for noninoculated chickpea compared with inoculated chickpea. We conclude that optimum productivity of chickpea can be achieved with application of effective Rhizobium inoculants, and that best N management practices must be adopted in the succeeding crops due to a large negative N balance after a chickpea crop. For personal use only.

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“…The reduction in DM yield observed in plants grown under K-deficient condition (K0) could be attributed to the limitation of photosynthesis and the decrease of photosynthate supply (Kurdali 1996). Similarly, the large DM accumulation means a large accumulation of photosynthates.…”

Section: Dry-matter Yieldmentioning

confidence: 99%

Effect of Potassium Fertilizers on Cotton Yield and Nitrogen Uptake Efficiency in an Aridisol

Khalifa

Al-Chammaa

Al-Ain

2012

Communications in Soil Science and Plant Analysis

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A field experiment was carried out to study the effect of different rates of potassium (K) fertilizer [0, 50, 100, and 150 potassium oxide (K 2 O) ha -1 ] in the presence of increased supply of nitrogen (N) (120, 180, and 240 kg N ha -1 ) on cotton (Gossypium hirsutum L.) yield and the N and K use efficiencies using the 15 N isotopic dilution technique. Potassium fertilizer increased cotton yield, which was significant and more pronounced with the application of N in the high level (N3). The greatest cotton yield (6442 kg ha -1 ) was obtained in N2K3 treatment with an increase of 14% over the control. In addition, K fertilizer significantly increased N uptake efficiency in the N2 and N3 treatments. The greatest N uptake efficiency (98%) was in N2K3 treatment. The greatest K uptake efficiency (42%) was occurred in N3K1 treatment. In conclusion, the use of K fertilizer could be useful when growing cotton in soils of moderate to high N content to improve N uptake efficiency and consequently increase cotton yield.

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Nitrogen and phosphorus assimilation, mobilization and partitioning in rainfed chickpea (Cicer arietinum L.)

Cited by 44 publications

References 38 publications

Dynamics of Exogenous Nitrogen Partitioning and Nitrogen Remobilization from Vegetative Organs in Pea Revealed by 15N in Vivo Labeling throughout Seed Filling

Dynamics of Exogenous Nitrogen Partitioning and Nitrogen Remobilization from Vegetative Organs in Pea Revealed by 15N in Vivo Labeling throughout Seed Filling

Nitrogen dynamics of chickpea: Effects of cultivar choice, N fertilization, Rhizobium inoculation, and cropping systems

Effect of Potassium Fertilizers on Cotton Yield and Nitrogen Uptake Efficiency in an Aridisol

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