Introducing deficit irrigation to stabilize yields of quinoa (Chenopodium quinoa Willd.)

Geerts, Sam; Raes, Dirk; Garcia, Magalı́; Vacher, Jean; Mamani, Richard; Mendoza, Jorge; Huanca, Ruben; Morales, Bernardo; Miranda, Roberto; Cusicanqui, Jorge; Taboada, Cristal

doi:10.1016/j.eja.2007.11.008

Cited by 135 publications

(108 citation statements)

References 30 publications

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“…İleri kuraklık seviyelerinde ise dekara 169.0 kg tane ve 295.0 kg sap verimi, %36.0 hasat indeksi ve 2.99 g bin tane ağırlığı elde etmişlerdir. Bolivya'da yürütülen başka bir çalışmada ise sulamanın verime önemli etkilerinin olduğu, sulama ile dekara 204.0 kg tohum verimi alınırken sulanmayan koşullarda verimin 168 kg da -1 'a düştüğü belirtilmiştir (Geerts et al, 2008). Mevcut araştırma ile canlıların besin maddesi açığını azaltabilmek ve ekonomik anlamda karlı bir üretim yapabilmek için hem tohum verimi ve kalite özellikleri bakımından bölge ekolojisine en uygun çeşitler belirlenmiş olacak, hem de akabinde yapılacak olan pek çok bilimsel çalışmaya katkı sağlayacaktır.…”

Section: Introductionunclassified

Determination of Seed Yield and Some Agronomical Characteristics of Different Quinoa (Chenopodium quinoa Willd.) Genotypes under Irrigated Conditions

Kir¹,

Temel²

2017

jist

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Anahtar kelimeler: Kinoa çeşitleri, sulu koşullar, morfolojik özellikler, tohum verimi ABSTRACT: This study was carried out to determine the ripening period, plant height, stem thickness, number of branch per plant, raceme ratio, seed yield, stem yield, biological yield, harvest index, 1000-seed weight, crude protein contents in stem and seed of different quinoa (Chenopodium quinoa Willd.) variety and populations (Cherry Vanilla, French Vanilla, Mint Vanilla, Moqu-Arrochilla, Oro de Valle, Population-China, Q-52, Rainbow, Read Head, Sandoval Mix and Titicaca) cultivated under the irrigated conditions. The research was conducted in a completely randomized block design with four replications in the field of Agricultural Application and Research Center of Igdir University in the 2015. The variance analysis results showed that the other parameters examined were significantly different (P≤0.01) among the genotypes, but crude protein in stem was found significant (P≤0.05). According to these results, the highest seed yield (412.03 kg da -1 ), harvest index (43.88%) and 1000-seed weight (2.65 g) were determined in Titicaca, earliness in Q-52 (140.75 days), biological yield in Sandoval Mix (1750.23 kg da -1 ) and the crude protein for seed in Population-China (14.75%). Consequently, it was revealed that all varieties examined can be cultivated for seed production in irrigated conditions and, especially Titicaca, Q-52, Moqu-Arrochilla and Mint Vanilla were determined as hopeful cultivars in terms of seed yield.

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Section: Introductionunclassified

Determination of Seed Yield and Some Agronomical Characteristics of Different Quinoa (Chenopodium quinoa Willd.) Genotypes under Irrigated Conditions

Kir¹,

Temel²

2017

jist

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“…According to pH, it was observed that with the decrease in the amount of irrigation water, the value of pH increased, but the increase was non significant and generally quinoa plant can grow with pH ranges of 4.5:9 (Geerts et al, 2008). In the same manner, elements composition differed where recorded the highest significant differentials in NO 3 , Mn, Zn and Cu ions while the differential responses in the amount of irrigation water were non significant in P, Ca, and Mg ions.…”

Section: The Effect Of Irrigation Treatments On Some Properties Of Somentioning

confidence: 99%

The Effect of Irrigation Intervals on the Growth and Yield of Quinoa Crop and Its Components

Algosaibi¹,

Badran²,

Almadini³

et al. 2017

JAS

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This experiment was conducted to study the effect of irrigation intervals on growth, yield and its components and some of the chemical characteristics of the soil after the harvest of quinoa (Chenopodium quinoa willd) plant. Three treatments were used as follow: T1 (twice irrigation every week, which is the common in the region), T2 (once irrigation every week) and T3 (twice irrigation every two weeks) using in a randomized complete block design with four replicates. The crop coefficient (Kc) value differed according to the stage of growth where the results showed that the T2 treatment gave the highest mean in all the studied traits followed by the T3 treatment in all traits except the number of seed/m 2 . The results also confirmed that the increase in water reduced the agronomic traits such as harvest index, number of seeds and yield of seeds and straw/m 2 . Also it showed that the pH values in soils were not significantly affected by irrigation, while Ec significantly affected. Correlation coefficient was negative with the most traits and low with the number of grain (0.34) under overall studied treatments which confirms that quinoa is a plant that needs limited amounts of irrigation water. On the other hand there was positive strong correlation between the harvest index and grain yield (0.92). The results showed that moisture stress treatments increased the concentration of the ionic, NH 4 -N and NO 3 -N significantly compared to soils which do not have moisture stress (T1, T2). We assume that the development based on Kc during growth-stages helps in irrigation management and provides precise water applications for quinoa plant. These results indicate that the water requirements of quinoa plant are limited and that quinoa plant growth is not affected by the lack of irrigation water on the crop and its qualities.

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“…Depletion to 50% TAW before flowering and to 61% TAW after flowering for the rest of the irrigation season was assumed for the full irrigation strategy. For deficit irrigation strategies, water is only applied during flowering and the early grain f illing phase, which are the most sensitive growth stages of quinoa to drought conditions (Geerts et al, 2008a). In order to evaluate current limitations of water resources in the region, grain yield under different deficit irrigation strategies were simulated.…”

Section: Crop Water Production Functionmentioning

confidence: 99%

“…In addition to the reported negative effects caused by the change in the cropping system (Cossio, 2008;Felix, 2008;Felix & Villca, 2009;Jacobsen, 2011), well developed drought and frost resistance mechanism (Jansen et al, 2000;Bosque et al, 2003;García et al, 2003;Jacobsen et al, 2005Jacobsen et al, , 2007Geerts et al, 2008a), might also explain the low yield of the crop. Recent research has suggested introducing deficit irrigation as a strategy to overcome the precipitation deficit, and boosting and stabilizing quinoa yields at 2.0 ton ha -1 (Geerts et al, 2008a(Geerts et al, ,b, 2009b. However, there is insufficient knowledge about the current farming systems that have emerged following the intensification of quinoa production.…”

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confidence: 99%

Economic assessment at farm level of the implementation of deficit irrigation for quinoa production in the Southern Bolivian Altiplano

Cusicanqui

Dillen

Garcia

et al. 2013

Span. j. agric. res.

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In the Southern Bolivian Altiplano recent research has suggested to introduce deficit irrigation as a strategy to boost quinoa yields and to stabilize it at 2.0 ton ha-1. In this study we carried out an economic assessment of the implementation of deficit irrigation at farm level using a hydro-economic model for simulating profit for quinoa production. As input of the model we worked with previously developed farms typology (livestock, quinoa and subsistence farms), simulated quinoa production with and without irrigation using AquaCrop model, and calculated yield response functions for four different climate scenarios (wet, normal, dry and very dry years). Results from the hydro-economic model demonstrate that maximum profit is achieved with less applied irrigated water than for maximum yield, and irrigated quinoa earned more profit than rainfed production for all farms types and climate scenarios. As expected, the benefits of irrigation under dry and very dry climate conditions were higher than those under normal and wet years, and benefits among farms types were higher for quinoa farms. In fact, profit of irrigated quinoa might be stabilized at around BOB 6500 ha-1 (about USD 920) compared with the huge differences found for rainfed conditions for all climate scenarios. Interestingly, the economic water productivity, expressed in terms of economic return for amount of applied irrigated water (BOB mm-1), reached the highest values with intermediate and low level of water availability schemes of deficit irrigation for all climate scenarios.

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Introducing deficit irrigation to stabilize yields of quinoa (Chenopodium quinoa Willd.)

Cited by 135 publications

References 30 publications

Determination of Seed Yield and Some Agronomical Characteristics of Different Quinoa (Chenopodium quinoa Willd.) Genotypes under Irrigated Conditions

Determination of Seed Yield and Some Agronomical Characteristics of Different Quinoa (Chenopodium quinoa Willd.) Genotypes under Irrigated Conditions

The Effect of Irrigation Intervals on the Growth and Yield of Quinoa Crop and Its Components

Economic assessment at farm level of the implementation of deficit irrigation for quinoa production in the Southern Bolivian Altiplano

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