Turkish Journal of Field Crops

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FORAGE YIELD AND QUALITY OF QUINOA (Chenopodium quinoa Willd.) GENOTYPES HARVESTED AT DIFFERENT CUTTING STAGES UNDER MEDITERRANEAN CONDITIONS

Saban YILMAZ , Ibrahim ERTEKIN , Ibrahim ATIS

Abstract

Genotype choosing and cutting stage are very significant to obtained better forage yield and quality. However, researches about forage production from quinoa plant genotypes harvested at different cutting stages are not enough in Mediterranean conditions. This study was conducted to determine the forage yield and quality of five different quinoa genotypes (Red head, Cherry vanilla, French vanilla, Mint vanilla and Titicaca) at three different cutting stages (flowering, milky and dough). The experiment was laid out in split plot of randomized complete blocks with three replications in 2019 and 2020 years. To evaluate the forage yield and quality of different quinoa genotypes harvested at different cutting stages, plant height, stem diameter, dry forage yield, dry matter content, water soluble carbohydrate, neutral detergent fiber, acid detergent fiber, acid detergent lignin, condensed tannins, ether extract, crude protein, crude ash, organic matter, non-fiber carbohydrate and relative feed value properties were investigated. As a result of the research, it was determined that it is appropriate to harvest quinoa as a roughage source at the dough stage, and that Mint vanilla genotype is the most productive genotype.

Keyword: Cutting date, forage quality, genotype, quinoa, yield ,
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Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Erdal GONULAL, Suleyman SOYLU, Mehmet SAHIN

Abstract

A field experiment was conducted in the Wielkopolska region at the Gorzyń Research Station, Poland (52.34°N, 15.54°E) in Central Europe. The study was conducted over a 3-year period (2017, 2018, 2019) as a two-factorial design with four replications in the RCBD. The aim of the research was to determine the effect of the cultivar (‘Bolero’, ‘Tytan’) and the inoculation (Nitragina–seeds inoculation, Nitroflora I–seeds inoculation, Nitroflora II–soil inoculation, HiStick® Lupin–seeds inoculation) on plant development, seeds chemical composition and yielding of narrow-leaved lupin. The weather conditions and experimental factors significantly influenced on productivity of narrow-leaved lupin ‘Tytan’. Drought during the growing season reduced seeds and protein yields. After inoculation of HiStck the seeds yield was significantly greater by 12.4% (p < 0.01) and the protein yield after application of Nitroflora I or HiStick by 13.9% (p < 0.01) and 19.2% (p < 0.01), respectively. Correlation coefficients showed strong relations between number of pods and seeds per plant in both cultivars regardless of the inoculation variant, however the strongest relations in both cultivar were proved on HiStick treatment.
Keyword: Biological nitrogen fixation, chemical composition, legumes, protein efficiency, yielding
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