Investigation of generative high temperature tolerances of some cotton (Gossypium hirsutum L.) varieties
Author:
DEMİRAY Yusuf Güzel1ORCID, EKİNCİ Remzi2ORCID, BARDAK Adem3ORCID
Affiliation:
1. GAP International Agricultural Research and Training Center 2. DİCLE ÜNİVERSİTESİ, ZİRAAT FAKÜLTESİ, TARLA BİTKİLERİ BÖLÜMÜ 3. KAHRAMANMARAS SUTCU IMAM UNIVERSITY, FACULTY OF AGRICULTURE, DEPARTMENT OF AGRICULTURAL BIOTECHNOLOGY, DEPARTMENT OF AGRICULTURAL BIOTECHNOLOGY
Abstract
The potential of cotton genotypes to form buds, flowers and bolls is not sufficient to achieve cotton seed yield targets. Despite global warming buds, flowers and bolls that mature in cotton plants must be successfully transformed into products. However, this is related to the generative tolerance of the genotype to high temperature. In study aims to scan the negative effects of high temperature stress on the generative development on cotton varieties registered in Turkey in the last 10 years. The experiment was established in the GAP International Agricultural Research and Training Center trial field in 2020, with 4 blocks according to the Augmented design. Six standards (Tamcot Spnhix, SJU86, AGC208, ST468, ST474, Carmen) and 88 cotton varieties registered in Turkey National Variety List were used as trial material. In this study, high temperature pollen vitality stress index (HTPVSI) and high temperature shedding stress index (HTSSI) properties were investigated. According to the results of the experiments we conducted, it was determined that the HTPVSI values ranged between 0.17-1.26, the HTPVSI averages of the standards were 1.17, and the HTPVSI averages of the genotypes were 0.99. It has been determined that HTSSI values vary between 0.30-1.71. It was determined that the mean HTSSI values of the standards were 0.89 and the genotypes were 1.00. It was determined that there was a wide variation among the genotypes screened for generatively high temperature stress. Using HTSSI and HTPVSI features is recommended as a selection criterion since it is an important trait for screening genotypes in terms of tolerance or sensitivity to generative high temperature stress in cotton plants. In our study, the results were not similar to each other in terms of HTPVSI and HTSSI traits, due to the low share of flower shedding after applying HTSP (High Temperature Shock Practice: 96 hours of uninterrupted exposure to high temperature during generative periods) in the shedding rate. When the examined HTSSI and HTPVSI traits were examined together, no cotton genotypes were found to be generatively tolerant. In terms of sensitivity of genotypes to high temperature, 18 cotton genotypes were found in the medium tolerant group and 25 cotton genotypes were found in the sensitive group.
Funder
Dicle University Scientific Research Projects Coordination Unit and General Directorate of Agricultural Research and Policies
Publisher
International Journal of Agriculture Environment and Food Sciences
Reference47 articles.
1. Aladizgeh F.M., Najeeb U., Hamzelou S., Pascovici D., Amirkhani A., Tan D.K.Y., Mirzaei M., Paul A. Haynes P.A. and Atwell1 B.J. (2021). Pollen development in cotton (Gossypium hirsutum L.) is highly sensitive to heat exposure during the tetrad stage. Jul;44(7):2150-2166. https://doi.org/10.1111/pce.13908 2. Alas E. (2022). Investigations on high temperature stress tolerance of Diyarbakır local eggplant genotypes. Ege University Institute of Science, Department of Horticulture, Doctoral Thesis, İzmir, 307p. 3. Anonim, (2022). Bitkisel Üretim Genel Müdürlüğü Tarla ve Bahçe Bitkileri Daire Başkanlığı Ürün Masalları- Pamuk Bülteni, Ocak 2022, sayı, 19 s:4. (in Turkish). 4. Aytaç, S., Başbağ, S., Arslanoğlu, F., Ekinci, R., Ayan, A.K. (2020). Lif Bitkileri Üretiminde Mevcut Durum ve Gelecek, Türkiye Ziraat Mühendisliği IX. Teknik Kongresi, 13-17 Ocak 2020, Ankara, TMMOB Ziraat Mühendisleri Odası, Bildiri Kitabı-1, ISBN-978-605-01-1321-1, Ankara Üniversitesi Basın Yayın Müdürlüğü, S: 463-491. (in Turkish). 5. Barrow J.R. (1983). Comparisons Among Pollen Viability Measurement Methods in Cotton, USDA-ARS, in cooperation with the New Mexico Agric. Exp. Sm., Las Cruces, NM 88003. Received 30 Aug. 1982. Research geneticist, USDA-ARS, Cotton Breeding, Las Cruces, NM 88003, crop science, vol. 23, July-august 1983, https://doi.org/10.2135/cropsci1983.0011183X002300040031x
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