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Agro-Morphological Yield and Quality Traits and Interrelationship with Yield Stability in Quinoa (

机译：农业毒素的农业形态产量和质量特征及屈服稳定性相互关系（

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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.
机译：奎奴亚藜（藜普核糖藜willd。）是一种嗜毒作物，表现出对多种非生物胁迫的抵抗力，包括盐度。在这项研究中，我们研究了六种染色奎奴亚藜品种的盐度耐受机制，属于智利沿海地区（植物高度（pH），分支/植物数量（BN），圆锥/植物数量（PN） ，穗长（PL），生化特征（叶C％，叶N％，谷物蛋白质含量）;在三个盐度水平下收获指数和产率（种子产量和植物干生物量（PDM）（0,10和20 d SM -1 NaCl）。通过比较种子产量特征来评价产量稳定性[（静态环境方差（S2）和动态Wricke（W2）]。结果表明，农业形态和产量属性中存在显着变化。随着盐度的增加水平，产量贡献参数（圆花花序数量和穗数）降低。盐胁迫降低了叶碳和氮含量。基因型Q21和AMES13761显示出较高的种子产量（2.30 t HA-1），更高的生产率和稳定性与其他基因型相比，盐度。盐度分别将种子产率降低至44.48％和60％，分别在较低（10ds m-1）和更高的盐度（20ds m-1）下。当用盐水处理时，NSL106398中的NSL106398中最高的粒子蛋白质含量最高，并且在Q29中最低。种子产率与pH，Tb，Hi和C％正相关。在N％，蛋白质含量和种子产量之间观察到显着和阴性相关性。 pH显示与APL，HI，C％和C：N比的显着正相关。 HI显示与C％，N％和蛋白质含量的正相关性。，除C：N比外，所有测量的植物性状，以基因型特异性方式响应盐。我们的结果表明，基因型（Q21和AMES13761）证明了它们在迪拜的桑迪沙漠土壤下的适用性，因为它们表现出更高的种子产量，而NSL106398显示出更高的种子蛋白质含量。本研究突出了在沙漠地区环境中为更好的幼苗建立，生存和稳定产量维持奎奴亚藜生物多样性。

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