Turkish Journal of Field Crops

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NUTRITIVE VALUE AND FODDER POTENTIAL OF DIFFERENT SWEET SORGHUM GENOTYPES UNDER MEDITERRANEAN CONDITIONS

Ilker INAL , Celal YUCEL , Derya YUCEL , Rustu HATIPOGLU

Abstract

This study was conducted to determine biomass yields and feed quality parameters of 21 different sweet sorghums (Sorghum bicolor var. saccharatum (L.) Mohlenbr.) genotypes grown as the second crop after wheat harvest under Cukurova conditions. Field experiments were conducted at the experimental fields of Dogankent-Adana location of Eastern Mediterranean Agricultural Research Institute in randomized blocks design with 4 replications in the years 2016 and 2017 (June-October). According to the results of the variance analyses of tha data obtained from the experimenst, years, genotypes and year x genotype interactions had significant effects on investigated parameters. Averaged over two years, dry matter yield (DMY), days to 50% flowering, crude protein content, NDF, ADF, and RFV of the genotypes varied between 21.6 and 62.9 t ha-1 , 55.0 and 99.1 days, 3.66 and 5.43%, 41.78 and 52.42%, 29.14 and 37.72%, and 111.3 and 148, respectively. It was determined that Ramada, Roma, Topper 76, UNL hybrid-3 and No91 genotypes were identified as late genotypes with DM yields of greater than 51 t ha-1 ; Ramada, Roma and Topper 76 genotypes had the first places in terms of quality and they were superior than the other standard cultivars and genotypes.

Keyword: Fodder yield, forage quality, genotype, sweet sorghum ,

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