Categorization of Chickpea Nodules and Their Relation with Plant Growth

Hazra, Kali Krishna; Nath, Chaitanya Prasad; Singh, S. K.; Swain, Dillip Kumar; Kumar, Narendra; Das, Krishnashis; Lamichaney, Amrit

doi:10.1007/s40009-020-00972-6

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Distribution of the nodule sizes in the three classes: small, medium and large impacted by variety was significantly different across all seasons. This is in agreement with Hazra et al (2020) who found various sizes in chickpea cultivar JG 16. Besides, Flowers et al (2010) documented similar outcomes.…”

Section: Nodule Size Distributionsupporting

confidence: 93%

Nodulation and protein content of selected chickpea varieties as impacted by spacing and n-fertiliser rates in Eastern Kenya

Wafula¹,

Njoka²,

Nthakanio³

et al. 2021

Afr. J. Agric. Res.

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Chickpea is a major legume grown in Kenya. The agronomic performance, nodulation ability and grain crude protein are not fully exploited. Field experiments were conducted at Embu, Kenya to determine the effect of plant spacing and N-fertilizer rates on nodulation and protein content of selected chickpea varieties. A split-split plot design was used and replicated three times. Treatments consisted of main factor, variety in four levels (Saina K, Mwanza 2, Chania I, Chania III), sub factor, spacing in three levels (S 1 : 50 x 10; S 2 : 50 x 20; S 3 : 50 x 30 cm), and sub-sub factor, nitrogen fertilizer rates in four levels of (0; 30; 60; 90 kg ha -1 ). Data on nodulation and CP was subjected to GLM. Spacing and N-fertilizer rates significantly affected nodule numbers, fresh weight and their sizes. Mwanza 2 x 50x10 cm x N 30 posted highest nodule numbers while Chania III had highest protein content. Interactions of VS, VN, SN and VSN had no consistent pattern under nodule factors but were highly significant in percent CP. Hence, optimal interactive effects of VSN can improve nodulation factors and CP of chickpea. The information will help growers make informed decisions, and researchers in developing improved varieties.

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Section: Nodule Size Distributionsupporting

confidence: 93%

Nodulation and protein content of selected chickpea varieties as impacted by spacing and n-fertiliser rates in Eastern Kenya

Wafula¹,

Njoka²,

Nthakanio³

et al. 2021

Afr. J. Agric. Res.

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show abstract

“…The root of the host plant was adhered by rhizobia to form intracellular symbiosis (Gregory, 2022; Lin et al., 2018). The number of nodules was increased with more root biomass with a coefficient of 0.26 (Hazra et al., 2021). The symbiosis secretes the nitrogenase to convert dinitrogen (N 2 ) to ammonia (Kuypers et al., 2018).…”

Section: Discussionmentioning

confidence: 99%

Disentangling the variability of symbiotic nitrogen fixation rate and the controlling factors

Yao,

Han,

Dong

et al. 2024

Global Change Biology

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Symbiotic nitrogen (N) fixation (SNF), replenishing bioavailable N for terrestrial ecosystems, exerts decisive roles in N cycling and gross primary production. Nevertheless, it remains unclear what determines the variability of SNF rate, which retards the accurate prediction for global N fixation in earth system models. This study synthesized 1230 isotopic observations to elucidate the governing factors underlying the variability of SNF rate. The SNF rates varied significantly from 3.69 to 12.54 g N m−2 year−1 across host plant taxa. The traits of host plant (e.g. biomass characteristics and taxa) far outweighed soil properties and climatic factors in explaining the variations of SNF rate, accounting for 79.0% of total relative importance. Furthermore, annual SNF yield contributed to more than half of N uptake for host plants, which was consistent across different ecosystem types. This study highlights that the biotic factors, especially host plant traits (e.g. biomass characteristics and taxa), play overriding roles in determining SNF rate compared with soil properties. The suite of parameters for SNF lends support to improve N fixation module in earth system models that can provide more confidence in predicting bioavailable N changes in terrestrial ecosystems.

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Mixtures of Commercial Lentil Cultivars Show Inconsistent Results on Agronomic Parameters but Positive Effects on Yield Stability

2022

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Cultivar mixtures are a useful tool to enhance cultivated biodiversity to buffer crop biotic and abiotic stresses. There are multiple pieces of evidence of mixture advantages in terms of pathogen control and increase in yield amount, stability and quality. Lentil represents a founder crop in the Mediterranean, yet it experiences strong yield fluctuations in the face of abiotic stresses. The present study aims to assess the mixing ability of four Italian commercial lentil lines in terms of yield amount and stability, nodule number, total lentil biomass and sensitivity to weeds. Since there is very limited information on lentil genotype traits, two-, three- and four-cultivar mixtures were designed with a trait-blind approach and compared to sole cultivars. The nodule number was mainly influenced by cultivar and weather; no interaction between cultivars was observed. Treatments were differently sensitive to weeds, but the effect of spatial heterogeneity prevailed over that of the cultivar. The average yield stability of all mixtures was significantly higher than pure stands, but in terms of yield amount, individual mixtures either outperformed or were outperformed by pure stands. Against our expectations, cultivar mixtures showed the most advantages in the most productive year: likely, the reason lies in the supposed low genetic diversity of commercial lentil lines in Italy. We encourage further research, taking into account the diversity of Italian lentil landraces, in order to gain a broader genetic base for the implementation of a trait-based approach, which may lead to better-performing mixtures.

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Categorization of Chickpea Nodules and Their Relation with Plant Growth

Cited by 3 publications

References 8 publications

Nodulation and protein content of selected chickpea varieties as impacted by spacing and n-fertiliser rates in Eastern Kenya

Nodulation and protein content of selected chickpea varieties as impacted by spacing and n-fertiliser rates in Eastern Kenya

Disentangling the variability of symbiotic nitrogen fixation rate and the controlling factors

Mixtures of Commercial Lentil Cultivars Show Inconsistent Results on Agronomic Parameters but Positive Effects on Yield Stability

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