Reddening of Cotton (Gossypium Hirsutum L.) Leaves

Edreva, A.; Gürel, Aynur; Gesheva, E.; Hakerlerler, Hüseyin

doi:10.1023/a:1015121428714

Cited by 12 publications

(5 citation statements)

References 18 publications

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“…Leaf reddening and colouration of the leaves in cotton can be due to a physiological response to abiotic stresses, such as Na + accumulation in the soil [ 41 ]. Leaf reddening results from a dramatic increase in red pigments and a sharp decline in chlorophyll content, reportedly leading to yield losses of 30–60% [ 42 ].…”

Section: Review General Flavonoid Structure and Biosynthesismentioning

confidence: 99%

Flavonoid Profile of the Cotton Plant, Gossypium hirsutum: A Review

Nix

Paull

Colgrave

2017

Plants

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Cotton, Gossypium hirsutum L., is a plant fibre of significant economic importance, with seeds providing an additional source of protein in human and animal nutrition. Flavonoids play a vital role in maintaining plant health and function and much research has investigated the role of flavonoids in plant defence and plant vigour and the influence these have on cotton production. As part of ongoing research into host plant/invertebrate pest interactions, we investigated the flavonoid profile of cotton reported in published, peer-reviewed literature. Here we report 52 flavonoids representing seven classes and their reported distribution within the cotton plant. We briefly discuss the historical research of flavonoids in cotton production and propose research areas that warrant further investigation.

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Section: Review General Flavonoid Structure and Biosynthesismentioning

confidence: 99%

Flavonoid Profile of the Cotton Plant, Gossypium hirsutum: A Review

Nix

Paull

Colgrave

2017

Plants

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“…Leaf reddening is a physiological disorder as a response of various stress stimuli (Dixon and Paiva, 1995). Abnormal red colouring in the leaves is due to accumulation of red pigments from the flavonoid group, namely anthocyanins and a degradation of chlorophyll (Edreva et al, 2002). It was first reported in the country on the newly introduced American cottons (Burt and Haider, 1919).…”

Section: Leaf Reddeningmentioning

confidence: 99%

Introduction of Bt cotton hybrids in India: Did it change the agronomy?

D. BLAISE,

M.V. VENUGOPALAN,

A.R. RAJU

2001

IJA

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The introduction and subsequent rapid adoption of Bt. transgenic cotton hybrids ( Gossypium species) have un- doubtedly been the most significant event in the history of cotton in India. Besides providing resistance against lepidopteron pests, the Bt. hybrids matured earlier, were more determinate, had a rapid leaf area development, re- tained more early set fruiting forms and perhaps have a shallower root system. Both researchers and farmers dur- ing the last decade have been fine-tuning the agronomy to maximize the benefits from Bt cotton. Some prominent changes accompanying this technology have been, compulsory seed treatment with imidachloprid, advancement in sowing wherever supplemental irrigation was available, a delay in sowing in the traditional rainfed till the soil pro- file absorbs sufficient moisture, application of atleast 25% higher fertilizer dose, shift towards balanced fertilization, foliar application of K and micronutrient mixtures. Adoption of drip irrigation and fertigation, more widespread use of booth pre-emergence (pendimethalin) and post-emergence herbicides (quizalofop ethyl and pyrithiobac so- dium), practice of stale seed bed technique for weed management, pruning and extension of crop duration are some other agro techniques which are being adopted by Bt. cotton farmers.

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“…At this time, chlorophyll is degraded in the leaves, anthocyanins, proline accumulate rapidly and the activity of peroxidase increases. This is a coordinated measure to overcome abiotic stress in the cotton plant [Edreva et all., 2002].…”

Section: Introductionmentioning

confidence: 99%

Chlorophyll Degradation in Leaves of Nanoparticles Exposed Cotton Seedlings Under Dark Condition

2023

ABC

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The aim of this study was to determine the effect of nanoparticles on the aging of cotton leaves by measuring the content of chlorophyll. Until now, the mechanism of chlorophyll degradation and the factors influencing this process have not been fully studied. In the presented research, the effect of nanoparticles on the degradation of chlorophyll and carotenoids, photosynthetic rate, Fv/Fm ratio and production of oxidants, ie. H2O2 and superoxide radical (O2-), lipoxygenase enzyme activity (LOX), and antioxidant enzymes SOD and CAT activity in 14-day-old cotton seedlings under dark conditions was investigated. Metal-based nanoparticles (ZnO, CuO, Fe2O3,TiO2) were used in the experiments. Cotton was grown in a controlled environment plant growth chamber. First, the compounds of chlorophyll and carotenoids were measured in the leaves of the third tiers of 14-day-old cotton seedlings, and then the seedlings were kept in the dark. The kinetics of the process depends on the composition and size of the nanoparticles. Nanoparticles do not significantly affect the increase of H2O2, superoxide anion during chlorophyll degradation, but ZnO nanoparticles do. Lipoxygenase, SOD and CAT enzymes activity in this process of nanoparticles is not seriously affected.

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Reddening of Cotton (Gossypium Hirsutum L.) Leaves

Cited by 12 publications

References 18 publications

Flavonoid Profile of the Cotton Plant, Gossypium hirsutum: A Review

Flavonoid Profile of the Cotton Plant, Gossypium hirsutum: A Review

Introduction of Bt cotton hybrids in India: Did it change the agronomy?

Chlorophyll Degradation in Leaves of Nanoparticles Exposed Cotton Seedlings Under Dark Condition

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