Yazar "Çalişkan, Sevgi" seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • Küçük Resim Yok
    Öğe
    Biofortification Under Climate Change: The Fight Between Quality and Quantity
    (Springer International Publishing, 2020) Maqbool, Amir; Abrar, Muhammad; Bakhsh, Allah; Çalişkan, Sevgi; Khan, Haroon Zaman; Aslam, Muhammad; Aksoy, Emre
    Climate change has been a serious problem in our industrialized world for the last century. We have faced its devastating effects on the environment, agriculture and human population. In current scenarios, around 3.8 billion people are predicted to live in areas with severe water problems by 2025. As the majority of staple crops are sensitive to environmental fluctuations, only an increase in global temperatures by 2 °C can disrupt agricultural practices and crop production periods severely. Therefore, plant breeders have canalized all the efforts to enhance the grain yield and produce more crops under adverse environmental conditions to meet the demand of the ever-increasing human population. However, the majority of current staple crop varieties produce grains with insufficient micronutrients. Moreover, climate change decreases micronutrient uptake from the soil and translocation within the plant body. In this chapter, three strategies (agronomic, breeding and transgenics) of micronutrient biofortification in various staple crops are explained with recent successful examples. © Springer Nature Switzerland AG 2020.
  • Küçük Resim Yok
    Öğe
    Influence of different irrigation methods and irrigation levels on water use efficiency, yield, and yield attributes of sweet potatoes
    (Parlar Scientific Publications, 2015) Önder, Derya; Önder, Sermet; Çalişkan, Mehmet Emin; Çalişkan, Sevgi
    This study examines the effects of irrigation methods and irrigation levels on sweet potatoes under field conditions in the Eastern Mediterranean region of Turkey. The experimental treatments included two irrigation methods and four different irrigation levels: blocked-furrow (BF) and drip (DI) irrigation. The irrigation levels were full irrigation (IR100), 66% of full irrigation (IR66), 33% of full irrigation (IR33), and not irrigated (IRO) treatments. Total of 11 irrigation applications were made at weekly intervals throughout the season. The blocked-furrow and drip irrigation both received the same amount of irrigation water. The full irrigation treatment received (IR100) 798 mm of water, and was followed by the treatments of IR66 and IR33, receiving 631 and 471 mm of irrigation water, respectively. The range of evapotranspiration (ET) recorded under BF treatment was 360-691 mm; whereas it was 360-691 mm with DI treatments. Tuber yields showed a wide range of variation as 11.94-51.091 ha-1. The significant (P<.01) yield differences were recorded among the different irrigation methods and irrigation levels. It was noted that tuber yield under DI was 13% higher compared to BF. The irrigation water use efficiency (IWUE) and water use efficiency (WUE) ranged from 36.8 to 65.7 kg ha-1 mm-1 and from 33.2 to 75.9 kg ha-1 mm-1, respectively. The yield reduction recorded when deficit irrigation was imposed under DI (i.e., D33, D66) was proportionally lower, therefore given higher water use efficiency, than with BF.
  • Küçük Resim Yok
    Öğe
    Recent advances in potato (solanum tuberosum L.) breeding
    (Springer International Publishing, 2021) Aksoy, Emre; Demirel, Ufuk; Bakhsh, Allah; Zia, Muhammad Abu Bakar; Naeem, Muhammad; Saeed, Faisal; Çalişkan, Sevgi
    Potato (Solanum tuberosum L.) is an annual dicotyledonous tuber crop originating from the Americas and now distributed all over the world. A member of the Solanaceae family, potato is the fourth most produced food crop and the first non-cereal crop in the world. Potato is a staple food with its high potentiality in fighting malnutrition in the world since potato tubers are known sources of vitamins, proteins, carbohydrates and minerals. Moreover, it generates higher yield compared to the other crops; hence, it is one of the most notable crops to eliminate hunger and poverty. Therefore, sustainable potato production is important for food security and social welfare in future climate-change scenarios. However, it is very sensitive to environmental conditions and climate change due to its shallow root system. Therefore, future potato breeding programs should focus on enhancement of abiotic and biotic stress tolerance by utilizing the natural germplasm conserved in different gene banks. Moreover, potato breeding should benefit from the effectiveness and ease of molecular techniques such as marker-assisted selection, genome-wide association studies, functional genomics and transgenics. Development of new potato varieties can also be achieved via genetic engineering and genome editing. Disease-free potato seed production requires integration of tissue culture methods in plant breeding. As a staple food for millions, the potato has an extraordinarily rich past, and a bright future. The demand for potato will increase in future, which will be the driving force behind the potato research. © Springer Nature Switzerland AG 2021.