Physiological and Morphological Responses of two Quinoa Cultivars (Chenopodium quinoa Willd.) to Drought Stress

Ali, Oudou Issa; Fghire, Rachid; Anaya, Fatima; Benlhabib, Ouafae; Wahbi, Said

doi:10.1007/s10343-019-00460-y

Cited by 32 publications

(14 citation statements)

References 32 publications

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“…As stated by MARSCHNER (2014), it is a consequence of the nutrients translocation from the soil to the interior of the root and its transformation into important substances for cell division and elongation, besides the increase in metabolic activities, which are developed in the leaves and that are transported to all the structures of the plant. However, the reduction in stem length in the days close to harvest is manifested, as the loss of cell turgidity and therefore reduction of tissue stiffness; while the vacuoles represent about 40% of the cell mass, which is affected by the expression of acetylene (ISSA et al 2019).…”

Section: Height Of the Plantsmentioning

confidence: 99%

Analysis of the growth and morpho-physiological performance of three cultivars of Colombian quinoa grown under a greenhouse

García-Parra

Stechauner-Rohringer

García-Molano³

et al. 2020

Rev. Ciênc. Agrovet.

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Quinoa (Amaranthaceae) is a native pseudo-cereal produced throughout the South American zone, where it is used in the preparation of food and as a promising alternative for the colonization of edaphoclimatic areas affected by anthropic and natural factors. Among the main problems that affect crop production, we can include those related to growth, development and production, generated by limitations of adaptability of new cultivars in specific areas. For this reason, this research intended to analyze the growth and morphphysiological behavior of the cultivars of quinoa Blanca Soracá (BS), Blanca Jericó (BT), and Tunkahuan (T). The study was carried out in the greenhouse of the Faculty of Agricultural Sciences of the Cauca University (Colombia) located at 1880 m a.s.l. The analysis, allowed to recognize that the three cultivars of quinoa, show different times of phenological development, until harvest (138.25 ± 2.3 and 161 ± 1.1 days). The number of leaves, the height of plants, and the number of branches show adjustment of sigmoidal regression equations (R 2 0.99 -0.98) for the cultivars BJ and T, while total chlorophyll content was adjusted to cubic behavior (R 2 0.90 -0.89). The cultivars of quinoa express productive behaviors that are associated with early and late cycles, showing differences in the production and weight of seeds. RESUMOQuinoa (Amaranthaceae) é um pseudo-cereal nativo produzido em toda a zona sul-americana, onde é utilizada como alimento e alternativa promissora para o cultivo em áreas edafoclimáticas afetadas por fatores antrópicos e naturais. Entre os principais problemas que afetam a produção agrícola, inclui-se aqueles relacionados ao crescimento, desenvolvimento e produção, gerados por limitações de adaptabilidade de novas cultivares em áreas específicas. Por este motivo, esta pesquisa teve como objetivo analisar o crescimento e o comportamento morfológico das cultivares de quinoa Blanca Soracá (BS), Blanca Jericó (BT) e Tunkahuan (T). O estudo foi realizado na estufa da Faculdade de Ciências Agrárias da Universidade de Cauca (Colômbia) a 1880 m.a.n.m A análise permitiu reconhecer que as três cultivares de quinoa apresentam diferentes épocas de desenvolvimento fenológico até a colheita (138,25 ± 2,3 e 161 ± 1,1 dias). O número de folhas, a altura das plantas e o número de ramos mostram ajuste às equações de regressão sigmoidal (R 2 0,99 -0,98) para as cultivares BJ e T, enquanto o teor de clorofila total foi ajustado para comportamento cúbica (R 2 0,90 -0,89). As cultivares de quinoa expressam comportamentos produtivos associados a ciclos precoces e tardios, mostrando diferenças na produção e peso das sementes.

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Section: Height Of the Plantsmentioning

confidence: 99%

Analysis of the growth and morpho-physiological performance of three cultivars of Colombian quinoa grown under a greenhouse

García-Parra

Stechauner-Rohringer

García-Molano³

et al. 2020

Rev. Ciênc. Agrovet.

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“…A number of studies reported that deficit irrigation during vegetative growth stage induced root system development and growth for quinoa (Geerts et al 2005;Jensen et al 2000;Jacobsen et al 2009). Issa Ali et al (2019) explained that water stress in the vegetative growth stage can significantly increase the tolerance to drought stress during flowering and grain filling growth phases. Pulvento et al (2012) observed that the deficit irrigation treatment of 25% of full irrigation caused an increase in WUE and a reduced dry matter accumulation in the leaves of quinoa in Italy.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of crop water stress index and leaf water potential for differentially irrigated quinoa with surface and subsurface drip systems

Çolak¹,

Yazar

Alghory

et al. 2020

Irrig Sci

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A 2-year field experiment was conducted with the objectives to evaluate the physiological and yield response of quinoa cv Titicaca to various deficit irrigation strategies applied with surface drip (SD) and subsurface drip systems (SSD) under the Mediterranean climatic conditions in 2016 and 2017. The treatments consisted of regulated deficit irrigation (RDI), partial root-zone drying (PRD 50 ), conventional deficit irrigations (DI 50 , DI 75 ) and full irrigation (FI) under SD and SSD. A rainfed treatment was also included. The experimental design was split plots with four replications. DI 75 and DI 50 received 75 and 50% of FI, respectively. PRD 50 plots received 50% of FI, but from alternative laterals in each application. RDI received 50% of FI during vegetative stage until flowering, then received 100% of water requirement. The results indicated that RDI resulted in water saving of 23 and 21% for surface drip (SD) and SSD systems, respectively, and RDI produced statistically similar yield to FI treatment in both experimental years. DI 75 treatment resulted in water savings of 16% for both drip methods in the first year and 10 and 25% for SD and SSD systems, respectively, in the second year. Thus, RDI and DI 75 treatments appear to be good alternative to FI for sustainable quinoa production in the Mediterranean environmental conditions. Greater leaf water potential (LWP) and smaller crop water stress index (CWSI) values were measured in FI plots under both drip systems than deficit irrigation treatment plots. Significant second-order polynomial relations were determined between CWSI and LWP for the drip systems. Leaf area index (LAI), LWP decreased and CWSI increased as the drought increased. CWSI correlated significantly (P < 0.01) and negatively with grain yield, dry matter yield, LAI, and mean soil water content indicating that grain yield of quinoa declined with increasing CWSI values. All these relations are best described by significant second-order polynomial equations. The results revealed that quinoa should be irrigated at LWP values between − 1.35 and − 1.60 MPa, and average CWSI value of approximately 0.35 for high yields.

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“…Titicaca and Puno. two short cycle varieties widely cultivated in Morocco and showed a good adaptation with higher yield compared to other quinoa accessions [4,5,30,35]. irrigation and irrigation with cow manure amendment (40 T/ha) conditions in a split plot design with 4 replications (plot size was equal to 10 m 2 ).…”

Section: Tested Cultivarsmentioning

confidence: 99%

Development of Quinoa Value Chain to Improve Food and Nutritional Security in Rural Communities in Rehamna, Morocco: Lessons Learned and Perspectives

Hirich

Rafik

Rahmani

et al. 2021

Plants

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Agricultural production in the Rehamna region, Morocco is limited with various challenges including drought and salinity. Introduction of climate resilient and rustic crops such as quinoa was an optimal solution to increase farmer’s income and improve food security. This study summarizes results obtained from a research project aiming to develop quinoa value chain in Morocco. The study tackled several aspects including agronomic traits (yield and growth), transformation, quality (nutritional and antinutritional traits) and economic analysis and, finally, a strength–weaknesses–opportunities–threats analysis, lessons learned and development perspectives were presented. From an agronomic point of view, introduced new quinoa cultivars showed higher performance than locally cultivated seeds and, furthermore, the use of irrigation and organic amendment has tremendously improved seed yield by double and three times, respectively, compared to rainfed conditions. Nutritional analysis revealed that protein and phosphorus content remained stable after seed pearling while most of the micronutrients content decreased after seed pearling. However, saponins content was reduced by 68% using mechanical pearling compared to 57% using both traditional abrasion and washing. The economic analysis showed that production cost of quinoa seeds could be further decreased using mechanized intensive tools along with irrigation and organic amendment supply. This study revealed several lessons learned from the field experience and proposed several development actions for each value chain component that can be implemented within a national quinoa program.

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Physiological and Morphological Responses of two Quinoa Cultivars (Chenopodium quinoa Willd.) to Drought Stress

Cited by 32 publications

References 32 publications

Analysis of the growth and morpho-physiological performance of three cultivars of Colombian quinoa grown under a greenhouse

Analysis of the growth and morpho-physiological performance of three cultivars of Colombian quinoa grown under a greenhouse

Evaluation of crop water stress index and leaf water potential for differentially irrigated quinoa with surface and subsurface drip systems

Development of Quinoa Value Chain to Improve Food and Nutritional Security in Rural Communities in Rehamna, Morocco: Lessons Learned and Perspectives

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