Evaluation of Cotton Genotypes for Drought Tolerance using PEG-6000 Water Stress by Slanting Glass Plate Technique

Pawar, K. N.; Veena, V.

doi:10.20546/ijcmas.2020.911.386

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…Our results are similar to [63], with the RL trait varying between 17.10 cm and 30.80 cm. Similar root length (RL) values were obtained by Pawar and Veena [64], with the highest root length at 12.72, 12.17, and 12.88 cm and the lowest at 9.8, 9.85, and 10.5 cm with the PEG 6000 drought application. At the same time, Pawar and Veena [64] revealed that the root length increased when the PEG 6000 application was increased by 10% and decreased after that level.…”

Section: Discussionsupporting

confidence: 73%

“…Similar root length (RL) values were obtained by Pawar and Veena [64], with the highest root length at 12.72, 12.17, and 12.88 cm and the lowest at 9.8, 9.85, and 10.5 cm with the PEG 6000 drought application. At the same time, Pawar and Veena [64] revealed that the root length increased when the PEG 6000 application was increased by 10% and decreased after that level. This situation can be explained by the plant root tolerance mechanism of the plant: the plant sends more photosynthesis products to the root in order to strengthen the roots and uptake more water from the soil [65].…”

Section: Discussionsupporting

confidence: 73%

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Assessing Drought Tolerance in a Large Number of Upland Cotton Plants (Gossypium hirsutum L.) under Different Irrigation Regimes at the Seedling Stage

Çelik

2023

Life

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The cotton plant is important since it provides raw materials for various industry branches. Even though cotton is generally drought-tolerant, it is affected negatively by long-term drought stress. The trial was conducted according to the applied experimental design as a completely randomized design (CRD) with three replications to determine a panel of 93 cotton genotypes’ genotypic responses against drought under controlled conditions in 2022. All genotypes were watered with 80 mL−1 of water (100% irrigation, field capacity) until three true leaves appeared, and then water stress was applied at a limited irrigation of 75% (60 mL−1), 50% (40 mL−1), and 25% (20 mL−1) of the field capacity. After the trial terminated at 52 days, the cv. G56, G44, G5, and G86 in RL; G1, G56, G44, G86, G51, and G88 in RFW; advanced line G5, followed by the cv. G56, advanced line G44, G75, and the cv. G90 in RDW; G44, followed by G86, the cv. G56, and elite lines G13 and G5 in NLRs were observed as drought-tolerant genotypes, respectively, while G35, G15, G26, G67, and G56 in SL; G15, G52, G60, G31, and G68 in SFW; G35, G52, G57, G41, and G60 in SDW show the highest drought tolerance means, respectively. In conclusion, the commercial varieties with high means in roots, namely G86, G56, G88, and G90, and the genotypes G67, G20, G60, and G57 showing tolerance in shoots, are suggested to be potential parent plants for developing cotton varieties resistant to drought. Using the cultivars found tolerant in the current study as parents in a drought-tolerant variety development marker-assisted selection (MAS) plant breeding program will increase the chance of success in reaching the target after genetic diversity analyses are performed. On the other hand, it is highly recommended to continue the plant breeding program with the G44, G30, G19, G1, G5, G75, G35, G15, G52, G29, and G76 genotypes, which show high tolerance in both root and shoot systems.

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Section: Discussionsupporting

confidence: 73%

Section: Discussionsupporting

confidence: 73%

Assessing Drought Tolerance in a Large Number of Upland Cotton Plants (Gossypium hirsutum L.) under Different Irrigation Regimes at the Seedling Stage

Çelik

2023

Life

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Effect of Drought Stress on Germination and Seedling Growth of Common Vetch (Vicia sativa L.) Cultivars

ÇİFÇİ,

AÇIKBAŞ

2023

Türkiye Tarımsal Araştırmalar Dergisi

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Fabaceae familyasına ait tek yıllık bir yem bitkisi olan yaygın fiğ (Vicia sativa L.), en çok yetiştirilen baklagil yem bitkilerinden biridir. Kuraklık stresi, bitki büyümesini ve üretkenliğini sınırlayan, bitkilerde çeşitli fizyolojik ve biyokimyasal tepkilere neden olan ciddi bir olumsuz faktördür. Bitkilerin büyümesini ve gelişmesini olumsuz yönde gelişmesine bağlı olarak verim kayıplarına neden olmaktadır. Bu araştırmada, yaygın fiğ (Vicia sativa L.) çeşitlerine farklı seviyelerde kuraklık stresine maruz bırakılıp, çimlenme ve fide gelişimleri incelenecektir. Çalışma; Siirt Üniversitesi, Ziraat Fakültesi, Tarla Bitkileri Bölümü Laboratuvarında 2023 yılında bitki büyütme kabininde yürütülecektir. Çalışmanın bitkisel materyali yaygın fiğin (Cumhuriyet, Soner, Görkem, Kralkızı, Özveren, Dicle, Alper, Doruk, Kubilay-82 ve Alınoğlu) çeşitleri oluşturacaktırBu çeşitlere ait tohumlar farklı kuraklık stresi (% 0, % 5, % 10, % 15 ve % 20) altında çimlendirilecektir. Bu anlamda 10 çeşit üzerine 5 farklı kuraklık stresi uygulanacak ve 4 tekerrürlü olarak tesadüf parsellerinde faktöriyel deneme desenine göre planlanacaktır. . Araştırmada; çimlenme yüzdesi (ÇY), ortalama çimlenme süresi (OÇS), çimlenme indeksi (ÇI), çimlenme üniformitesi (ÇU), çimlenme enerjisi (ÇE) ve fide gücü indeksi (FGI), kökçük ve sapçık uzunluğu, kökçük ve sapçık yaş ve kuru ağırlıkları, lateral kök sayısı ve uzunluğu parametreleri incelenecektir. Gözlemler her gün aynı saatte yapılacak, radikula uzunluğu 2 mm’yi geçen tohumlar çimlenmiş olarak kabul edilecektir. Tohumlar 25 ℃’ye ayarlı iklimlendirme dolabında on gün süreyle takip edilecektir. Araştırmada, çeşitlerin ve farklı kuraklık seviyelerine ait ortalamaların arasındaki farklılıkların istatistiki olarak analiz edilerek ve elde edilen verilerin tartışılması yapılacaktır.

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Investigation of Some Upland Cotton (<em>Gossypium hir-sutum</em> L.) Genotypes Tolerance Under Limited Irriga-tion at Seedling Stage

çelik

2023

Preprint

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Cotton is an important plant since it provides raw materials for various in-dustry bracnhes. Even though cotton is generally tolerant of drought, it is af-fected negatively by long-term drought stress. This experiment was conduct-ed according to a completed randomized plots trial design with 3 replications to determine the upland cotton genotype’s reactions against drought under controlled conditions in the 2022 year. All genotypes were watered with 80 mL-1 of water (100% irrigation, Field capacity) until three true leaves ap-peared. After this period water stress was applied at limited irrigation of 75% (60 mL-1), 50% (40 mL-1), and 25% (20 mL-1) of field capacity. After the trial terminated at 52. Days, the cv. G56, elit line G44, G5, and commercial variety G86 genotype, respectively resulted in the highest Root Length (RL), and the G76 genotype resulted in the lowest RL followed by G41 and G35 elite lines. G1 cultivar showed the highest Root Fresh Weight (RFW), followed by G56, G44, G86, G51, and G88, respectively. The lowest RFW was also obtained in elite lines G76 and G41. The third drought morphological marker, the Num-ber of Lateral Roots (NLRs), was the highest in G44, followed by G86, Cv. G56, elite lines G13 and G5 genotype. The lowest NLRs value was obtained in genotype G47 and G76. The highest RDW means was obtained in elite line G5, followed by Cv. G56, elite line G44, G75 and cv. G90, while the lowes RDW mean obtained in elite line G76, G35, and local varieties G20 and G61. In the SL marker, the highest averages were recorded for genotypes G35, G15, G26, G67, and G56, respectively. In the SFW marker, the highest averages were observed in genotypes G15, G52, G60, G31, and G68, respectively. The lowest SL values were observed in genotypes G91, G72, G32, and G22. Simi-larly, the lowest SFW values were found in genotypes G83, G2, G75, and G91. In another shoot drought marker, Shoot Dry Weight (SDW), the highest val-ues were obtained in genotypes G35, G52, G57, G41, and G60, respectively. Conversely, the lowest SDW values were observed in genotypes G65, G91, G4, G20, and G22. In conclusion, the commercial varieties with high averages in roots, namely G86, G56, G88, and G90, and the genotypes G67, G20, G60, and G57 showing tolerance in shoots, are suggested to be potential parent plants for developing cotton varieties resistant to drought. Using the culti-vars found tolerant in the current study as parents in a drought-tolerant vari-ety development Marker-assisted selection (MAS) plant breeding program will increase the chance of success in reaching the target after genetic diversi-ty analyses are performed. It is highly recommended to continue the plant breeding program with the G44, G30, G19, G1, G5, G75, G35, G15, G52, G29, and G76 genotypes which show high tolerance in both root and shoot sys-tems.

show abstract

Evaluation of Cotton Genotypes for Drought Tolerance using PEG-6000 Water Stress by Slanting Glass Plate Technique

Cited by 4 publications

References 12 publications

Assessing Drought Tolerance in a Large Number of Upland Cotton Plants (Gossypium hirsutum L.) under Different Irrigation Regimes at the Seedling Stage

Assessing Drought Tolerance in a Large Number of Upland Cotton Plants (Gossypium hirsutum L.) under Different Irrigation Regimes at the Seedling Stage

Effect of Drought Stress on Germination and Seedling Growth of Common Vetch (Vicia sativa L.) Cultivars

Investigation of Some Upland Cotton (<em>Gossypium hir-sutum</em> L.) Genotypes Tolerance Under Limited Irriga-tion at Seedling Stage

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