Effect on Yield and some Quality Characteristics of Seed Harvest at Different Stages of Maturity in Nigella sativa L.

Abstract

Nigella sativa L. is a significant medicinal and aromatic plant due to the usage of both its seed and fixed oil. The aim of the study is to investigate the effects on seed yield, various yield components, fixed and essential oil content, and chemical composition (2018 year) of black cumin when harvesting the seed at four different stages of maturity. These stages were 25% (SH1), 50% (SH2), 75% (SH3) and 100% (SH4) browning of capsules. Two-year field experiments (2017 and 2018) were set up according to a randomized complete block design with triplicate, using a black cumin population obtained from the Burdur province under Isparta ecological conditions. Significant statistical differences were found among the harvest stages in regards to the seed yield, plant height and the thousand-seed weight, while no differences were found in the numbers of capsules and branches, essential oil and fixed oil contents in both experimental years. Seed yield and its components increased during the harvest stage up to SH3, while essential oil and fixed oil contents decreased insignificantly from SH1 to SH4 in both years. According to the combined years; plant height, the number of capsules, the number of branches, the 1000 seed weight, seed yields, essential oil and fixed oil contents varied between 38.

Yield and Quality Traits of Black Cumin (Nigella sativa L.) Genotypes in Response to the Different Sowing Dates

“…The highest NOB was obtained from the G1 genotype (7.0 pcs plant -1 ), while it was found to be 49% and 19% higher than the G2 (4.7 pcs plant -1 ) and G3 (5.9 pcs plant -1 ) genotypes, respectively. The NOB observed in this study is in agreement with other results, ranging from 4 to 6 pcs plant -1 (Toncer and Kizil, 2004), 3 to 6 pcs plant -1 (Hosseini et al, 2018), 5 to 10 (Iqbal et al, 2019), 6.5 to 6.9 pcs plant -1 (Kara et al, 2021), 4.7 pcs plant -1 (Ozer et al, 2020). However, the results herein were lower than 4 to 16 pcs plant -1 reported by (Golkar and Nourbakhsh, 2019).…”

“…The highest capsules were obtained from the G3 (21.7 pcs plant -1 ) genotype, while it was 10% and 37% higher than the G1 (19.7 pcs plant -1 ) and G2 (15.8 pcs plant -1 ) genotypes, respectively. Other researchers reported similar results in terms of NOC, ranging from 7 to 9 pcs plant -1 (Toncer and Kizil, 2004), 6 to 17 pcs plant -1 (Hosseini et al, 2018), 6 to 11 pcs plant -1 (Inan, 2020), 16 to 37 pcs plant -1 (Varun et al, 2020), 17 to 18 pcs plant -1 (Ozer et al, 2020), 16 to 20 pcs plant -1 (Sarkar et al, 2022), and 6 to 7 pcs plant -1 (Kara et al, 2021). However, the present results were less than 8 to 72 pcs plant -1 (Golkar and Nourbakhsh, 2019), and 10 to 65 pcs plant -1 (Iqbal et al, 2019).…”

“…In terms of genotypes, the highest TSW was obtained from the G2 and G3 genotypes (3.1 g), while it was 15% higher than the G1 genotype (2.7 g). Consistent findings regarding the TSW have also been reported by other researchers, with values ranging from 1.8 g (Toncer and Kizil, 2004), 2.3 to 2.8 g (Hosseini et al, 2018), 1.5 to 1.9 g (Rezaei-Chiyaneh et al, 2018), 0.7 to 6.6 (Iqbal et al, 2019), 2.5 to 2.6 g (Ozer et al, 2020), 2.8 to 3.0 g (Sarkar et al, 2022), and 2.3 to 2.6 g (Kara et al, 2021). TSW is a significant yield-contributing trait in the majority of plant.…”

“…The higher PH observed in the G1 genotype compared to the G2 and G3 genotypes is due to the fact that it is a commercially registered cultivar improved through plant breeding. Other researchers have also documented variations in PH for black cumin, ranging from 62 to 73 cm (Toncer and Kizil, 2004), 62 cm (Mehmood et al, 2018), 21 to 46 cm (Hosseini et al, 2018), 15 to 45 cm (Golkar and Nourbakhsh, 2019), 24 to 45 cm (Inan, 2020), 35 to 44 cm (Beyzi, 2020), 37 to 44 cm (Ozer et al, 2020), 26 to 60 cm (Varun et al, 2020), and 38 to 43 cm (Kara et al, 2021). When comparing the results of the PHs obtained by the researchers with the results in our study, it is observed that there are low, high, and similar values.…”

Phytochemical screening and in vitro evaluation of the antiarthritic activity of Nigella sativa L. seeds extracts

“…It's widely utilized in traditional medicine, because of the various properties of its different parts including its seed. Black seed is used in the treatment of many health problems such as digestive problems, liver, respiratory system, heart disease, and immune problems [9,10]. The seed also has been used to fight intestinal worms [11].…”