Assessment of adaptability and seed yield stability of selected quinoa (Chenopodium quinoa Willd.) genotypes in spring cropping systems in cold and temperate regions of Iran

Quinoa cultivation is well-adapted to sustainable cropping systems, even if seed yield could be severely limited due to several constraints, such as weeds. Field trials were performed in Gorgan (Iran) to quantify the effects of agro-ecological service crops (rye, CCr; winter vetch, CCw; and no cover, CC0), tillage regimes (conventional tillage, CT; and no-tillage, ZT), and herbicide rates (100% rate, H100; 75% rate, H75; and without herbicide, H0). Weed characteristics and quinoa yield were measured. Quinoa seed yield was the highest in CCw-ZT-H100. Seed yield in H100 and H75 were higher compared with H0 (2.30 vs. 1.58 t ha−1, respectively). Under conventional tillage, 46% of weed seeds were observed in the 0–10 cm soil layer and 54% in 10–20 cm soil layers, respectively, while, under no-tillage, about 63% of weed seeds were located up to 10 cm of soil. Amaranthus retroflexus L. was the most abundant species. The total weed density was the lowest in CCr-ZT-H100 and tended to be higher in CC0 (30.9 plant m−2) and under CT (29.0 plant m−2). These findings indicate that cover crops have potential for managing weeds in quinoa; however, their inclusion should be supported by chemical means to maintain high seed.

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Seed Yield and Yield Stability of Chickpea in Response to Cropping Systems and Soil Fertility in Northern Latitudes

Agronomy Journal ◽

10.2134/agronj2009.0039 ◽

2009 ◽

Vol 101 (5) ◽

pp. 1113-1122 ◽

Cited By ~ 18

Author(s):

Y. T. Gan ◽

T. D. Warkentin ◽

C. L. McDonald ◽

R. P. Zentner ◽

A. Vandenberg

Keyword(s):

Soil Fertility ◽

Seed Yield ◽

Cropping Systems ◽

Yield Stability ◽

Northern Latitudes

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Agro-Morphological, Yield and Quality Traits and Interrelationship with Yield Stability in Quinoa (Chenopodium quinoa Willd.) Genotypes under Saline Marginal Environment

Plants ◽

10.3390/plants9121763 ◽

2020 ◽

Vol 9 (12) ◽

pp. 1763

Author(s):

M. Iftikhar Hussain ◽

Adele Muscolo ◽

Mukhtar Ahmed ◽

Muhammad Ahsan Asghar ◽

Abdullah J. Al-Dakheel

Keyword(s):

Protein Content ◽

Seed Yield ◽

Plant Traits ◽

C:N Ratio ◽

Chenopodium Quinoa ◽

Yield Stability ◽

Grain Protein ◽

Panicle Length ◽

Yield Attributes ◽

Salinity Levels

Quinoa (Chenopodium quinoa Willd.) is a halophytic crop that shows resistance to multiple abiotic stresses, including salinity. In this study we investigated the salinity tolerance mechanisms of six contrasting quinoa cultivars belonging to the coastal region of Chile using agro-physiological parameters (plant height (PH), number of branches/plant (BN), number of panicles/plant (PN), panicle length (PL), biochemical traits (leaf C%, leaf N%, grain protein contents); harvest index and yield (seed yield and plant dry biomass (PDM) under three salinity levels (0, 10, and 20 d Sm−1 NaCl). The yield stability was evaluated through comparision of seed yield characteristics [(static environmental variance (S2) and dynamic Wricke’s ecovalence (W2)]. Results showed that significant variations existed in agro-morphological and yield attributes. With increasing salinity levels, yield contributing parameters (number of panicles and panicle length) decreased. Salt stress reduced the leaf carbon and nitrogen contents. Genotypes Q21, and AMES13761 showed higher seed yield (2.30 t ha−1), more productivity and stability at various salinities as compared to the other genotypes. Salinity reduced seed yield to 44.48% and 60% at lower (10 dS m−1) and higher salinity (20 dS m−1), respectively. Grain protein content was highest in NSL106398 and lowest in Q29 when treated with saline water. Seed yield was positively correlated with PH, TB, HI, and C%. Significant and negative correlations were observed between N%, protein contents and seed yield. PH showed significant positive correlation with APL, HI, C% and C:N ratio. HI displayed positive correlations with C%, N% and protein content., All measured plant traits, except for C:N ratio, responded to salt in a genotype-specific way. Our results indicate that the genotypes (Q21 and AMES13761) proved their suitability under sandy desert soils of Dubai, UAE as they exhibited higher seed yield while NSL106398 showed an higher seed protein content. The present research highlights the need to preserve quinoa biodiversity for a better seedling establishment, survival and stable yield in the sandy desertic UAE environment.

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The crucial role of mulch to enhance the stability and resilience of cropping systems in southern Africa

Agronomy for Sustainable Development ◽

10.1007/s13593-021-00687-y ◽

2021 ◽

Vol 41 (2) ◽

Author(s):

Blessing Mhlanga ◽

Laura Ercoli ◽

Elisa Pellegrino ◽

Andrea Onofri ◽

Christian Thierfelder

Keyword(s):

Crop Rotation ◽

Southern Africa ◽

Cropping Systems ◽

Conservation Agriculture ◽

Conventional Tillage ◽

Yield Stability ◽

No Tillage ◽

The Stability ◽

Stability And Resilience

AbstractConservation agriculture has been promoted to sustainably intensify food production in smallholder farming systems in southern Africa. However, farmers have rarely fully implemented all its components, resulting in different combinations of no-tillage, crop rotation, and permanent soil cover being practiced, thus resulting in variable yield responses depending on climatic and soil conditions. Therefore, it is crucial to assess the effect of conservation agriculture components on yield stability. We hypothesized that the use of all three conservation agriculture components would perform the best, resulting in more stable production in all environments. We evaluated at, eight trial locations across southern Africa, how partial and full implementation of these components affected crop yield and yield stability compared with conventional tillage alone or combined with mulching and/or crop rotation. Grain yield and shoot biomass of maize and cowpea were recorded along with precipitation for 2 to 5 years. Across different environments, the addition of crop rotation and mulch to no-tillage increased maize grain by 6%, and the same practices added to conventional tillage led to 13% yield increase. Conversely, adding only mulch or crop rotation to no-tillage or conventional tillage led to lower or equal maize yield. Stability analyses based on Shukla’s index showed for the first time that the most stable systems are those in which mulch is added without crop rotation. Moreover, the highest yielding systems were the least stable. Finally, additive main effects and multiplicative interaction analysis allowed clarifying that mulch added to no-tillage gives stable yields on sandy soil with high rainfall. Similarly, mulch added to conventional tillage gives stable yield on sandy soil, but under low rainfall. This is the first study that highlighted the crucial role of mulch to enhance the stability and resilience of cropping systems in southern Africa, supporting their adaptability to climate change.

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Traditional soybean (Glycine max) breeding increases seed yield but reduces yield stability under non-phosphorus supply

Functional Plant Biology ◽

10.1071/fp21116 ◽

2021 ◽

Author(s):

Zhong-Hua Zhang ◽

Jairo A. Palta ◽

Ping Lu ◽

Ming-Jian Ren ◽

Xing-Tao Zhu ◽

...

Keyword(s):

Glycine Max ◽

Seed Yield ◽

Yield Stability

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Comparative Seed Yield Stability of Determinate and Indeterminate RILs of Dolichos Bean (Lablab purpureus L. Sweet) var. lignosus

International Journal of Current Microbiology and Applied Sciences ◽

10.20546/ijcmas.2018.701.391 ◽

2018 ◽

Vol 7 (1) ◽

pp. 3269-3295

Author(s):

Chandra kant ◽

H.R. Uday Kumar ◽

S. Ramesh ◽

C.M. Keerthi ◽

A. Mohan Rao ◽

...

Keyword(s):

Seed Yield ◽

Yield Stability ◽

Lablab Purpureus

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Seed yield of two new quinoa (Chenopodium quinoa Willd.) breeding lines as affected by sowing date in Central Italy

Acta agriculturae Slovenica ◽

10.14720/aas.2019.113.1.05 ◽

2019 ◽

Vol 113 (1) ◽

pp. 51 ◽

Cited By ~ 1

Author(s):

Paolo CASINI

Keyword(s):

Seed Yield ◽

Central Italy ◽

Chenopodium Quinoa ◽

Sowing Date ◽

Breeding Lines ◽

Saponin Content ◽

Sowing Dates ◽

Stage Development ◽

Sowing Period ◽

Phenological Phases

<p>Research on the introduction of quinoa in Italy is currently lacking. The present research was aimed at identifying the correct sowing period. Field experiment was consucted in Cesa, Tuscany, in 2017. Two new breeding lines coded as DISPAA-Q42 and DISPAA-Q47-CB were utilized. Three sowing dates (SD) were implemented: February 23; March 17 and April 27. Results showed that the most successful SD was February 23. A significant decrease in both seed yield and a delay in phenological phases, relating to plant maturation and flowering was associated with the sequential delay in SD in both lines. Results also showed a significant effect of lines on yield, true-leaf stage development, flower development and maturity. Only DISPAA-Q42 was considered suitable for cultivation in the Tuscan environment. DISPAA-Q47-CB was the more susceptible line, due to the sequential delay in SD and delayed plant maturation. No effect between lines was evident for protein and saponin content. The present study clearly shows the potential for the successful cultivation of quinoa in Central Italy, and highlights the necessity of taking into consideration both breeding lines and SD in order to accomplish this goal.</p>

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