Investigation of generative high temperature tolerances of some cotton (Gossypium hirsutum L.) varieties

Yusuf Güzel Demiray; Remzi Ekinci; Adem Bardak

Article Details

Investigation of generative high temperature tolerances of some cotton (Gossypium hirsutum L.) varieties

Authors:

Yusuf Güzel Demiray | Remzi Ekinci | Adem Bardak

Publisher:

Gültekin ÖZDEMİR

Main Topics:

Botany | Industrial Crops

Journal:

International Journal of Agriculture Environment and Food Sciences Vol.7 Issue 2, pp.284-291

Document Type:

Article

Publication Date:

6/2023

Document Language:

English

Document ID (Org No.):

2001290047

pISSN:

2618-5946

Keywords:

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.

 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.

 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.

 Pamuk genotiplerinin tomurcuk, çiçek ve koza oluşturma potansiyeli, pamuk kütlü verim hedeflerine ulaşmak için yeterli değildir. Küresel ısınmaya rağmen pamuk bitkisinde olgunlaşan tarak, çiçek ve kozaların başarılı bir şekilde ürüne dönüşmesi için genotipin yüksek sıcaklığa generatif olarak toleranslılığıyla ilişkilidir. Bu çalışmanın amacı, yüksek sıcaklık stresinin pamuk bitkisinin generatif gelişime olan zararlı etkilerinin ülkemizde son 10 yılda tescil edilen pamuk çeşitlerinde taranmasıdır. Deneme, 2020 yılında GAP Uluslararası Tarımsal Araştırma ve Eğitim Merkezi Müdürlüğü deneme alanında, Augmented deneme desenine göre 4 bloklu olarak kurulmuştur. Altı adet standart Tamcot Spnhix, SJU86, AGC208, STV468, ST474, Carmen pamuk genotipi ile milli çeşit listesinde kayıtlı 88 adet pamuk çeşidi deneme materyali olarak kullanılmıştır. Bu çalışmada, yüksek sıcaklık polen canlılık stres indeksi YSPCSI ile yüksek sıcaklık silkme stres indeks YSSSI özellikleri incelenmiştir. Yürütmüş olduğumuz deneme sonuçlarına göre, YSPCSI değerlerinin 0.17-1.26 arasında değişim gösterdiği, standartların YSPCSI ortalamalarının 1.17, genotiplerin YSPCSI ortalamalarının ise 0.99 olduğu saptanmıştır. Yüksek sıcaklık silkme stres indeks YSSSI değerlerinin 0.30-1.71 arasında değişim gösterdiği; standartların ortalama YSSSI değerlerinin 0.89, genotiplerin ise 1.00 olduğu saptanmıştır. Generatif olarak yüksek sıcaklık stresi için taranan pamuk genotipler arasında geniş bir varyasyon olduğu belirlenmiştir. YSSSI ve YSPCSI özellikleri kullanılarak pamuk bitkisinde generatif olarak yüksek sıcaklık stresine karşı tolerantlık veya hassasiyetlik konusunda genotiplerin taranması için önemli bir özellik olduğundan seçim kriteri olarak kullanılması tavsiye edilmektedir. Çalışmamızda, uygulanan YSŞU generatif dönemlerinde 96 saat kesintisiz yüksek sıcaklığa maruz kalması sonrası oluşan çiçek dökülmesinin, silkme oranı içerisindeki payının düşük olmasından kaynaklı, YSPCSI ve YSSSI özellikleri bakımından sonuçlar birbiri ile benzerlik göstermemiştir. Araştırmaya konu olan YSSSI ve YSPCSI özellikleri beraber irdelendiğinde, generatif olarak, tolerant gruba giren herhangi bir pamuk genotipine rastlanmamıştır. Generatif olarak, orta tolerant gruba 18 adet, hassas gruba ise 25 adet pamuk genotipinin girdiği saptanmıştır.

Article Details

Investigation of generative high temperature tolerances of some cotton (Gossypium hirsutum L.) varieties

Authors:

Yusuf Güzel Demiray | Remzi Ekinci | Adem Bardak

Publisher:

Gültekin ÖZDEMİR

Main Topics:

Botany | Industrial Crops

Journal:

International Journal of Agriculture Environment and Food Sciences Vol.7 Issue 2, pp.284-291

Document Type:

Article

Publication Date:

6/2023

Document Language:

English

Document ID (Org No.):

2001290047

pISSN:

2618-5946

Cotton

Generatively High Temperature

Pollen Vitality

SheddingPamuk

Generatif olarak Yüksek Sıcaklık

Polen Canlılık

Silkme

Issues

Article Details

Authors: Yusuf Güzel Demiray | Remzi Ekinci | Adem Bardak

Publisher: Gültekin ÖZDEMİR

Main Topics: Botany | Industrial Crops

Journal: International Journal of Agriculture Environment and Food Sciences Vol.7 Issue 2, pp.284-291

Document Type: Article

Publication Date: 6/2023

Document Language: English

Document ID (Org No.): 2001290047

pISSN: 2618-5946

Issues

Authors:

Yusuf Güzel Demiray | Remzi Ekinci | Adem Bardak

Publisher:

Gültekin ÖZDEMİR

Main Topics:

Botany | Industrial Crops

Journal:

International Journal of Agriculture Environment and Food Sciences Vol.7 Issue 2, pp.284-291

Document Type:

Article

Publication Date:

6/2023

Document Language:

English

Document ID (Org No.):

2001290047

pISSN:

2618-5946