scholarly journals Effect of Some Growth Regulators foliar application on Cotton Fiber growth and Development (Elongation & Maturation) in two Egyptian Cotton Varieties

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Mounir Seif ◽  
Hanan Arafa ◽  
shimaa Shahat
Keyword(s):  
Growth Regulators ◽  
Cotton Fiber ◽  
Growth And Development ◽  
Foliar Application ◽  
Fiber Growth ◽  
Egyptian Cotton

Effects of Plant Growth Regulators on Fiber Growth and Development in Colored Cotton Ovule Culture in vitro

2017 ◽  
Vol 43 (5) ◽  
pp. 763
Author(s):  
Xiao-Meng ZHANG ◽  
Song-Jiang LIU ◽  
Wen-Fang GONG ◽  
Jun-Ling SUN ◽  
Bao-Yin PANG ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Growth And Development ◽  
Ovule Culture ◽  
Culture In Vitro ◽  
Fiber Growth ◽  
Colored Cotton ◽  
Cotton Ovule Culture

scholarly journals Sphingolipid Profile during Cotton Fiber Growth Revealed That a Phytoceramide Containing Hydroxylated and Saturated VLCFA Is Important for Fiber Cell Elongation

Biomolecules ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1352
Author(s):  
Qian Chen ◽  
Fan Xu ◽  
Li Wang ◽  
Xiaodong Suo ◽  
Qiaoling Wang ◽  
...  
Keyword(s):  
Molecular Species ◽  
Cotton Fiber ◽  
Cell Elongation ◽  
Growth And Development ◽  
Fiber Cell ◽  
Sphingolipid Metabolism ◽  
Fiber Growth ◽  
Fiber Cells ◽  
Exogenous Application ◽  
Long Chain

Cotton fiber is a single-celled seed trichrome that arises from the epidermis of the ovule’s outer integument. The fiber cell displays high polar expansion and thickens but not is disrupted by cell division. Therefore, it is an ideal model for studying the growth and development of plant cells. Sphingolipids are important components of membranes and are also active molecules in cells. However, the sphingolipid profile during fiber growth and the differences in sphingolipid metabolism at different developmental stages are still unclear. In this study, we detected that there were 6 classes and 95 molecular species of sphingolipids in cotton fibers by ultrahigh performance liquid chromatography-MS/MS (UHPLC-MS/MS). Among these, the phytoceramides (PhytoCer) contained the most molecular species, and the PhytoCer content was highest, while that of sphingosine-1-phosphate (S1P) was the lowest. The content of PhytoCer, phytoceramides with hydroxylated fatty acyls (PhytoCer-OHFA), phyto-glucosylceramides (Phyto-GluCer), and glycosyl-inositol-phospho-ceramides (GIPC) was higher than that of other classes in fiber cells. With the development of fiber cells, phytosphingosine-1-phosphate (t-S1P) and PhytoCer changed greatly. The sphingolipid molecular species Ceramide (Cer) d18:1/26:1, PhytoCer t18:1/26:0, PhytoCer t18:0/26:0, PhytoCer t18:1/h20:0, PhytoCer t18:1/h26:0, PhytoCer t18:0/h26:0, and GIPC t18:0/h16:0 were significantly enriched in 10-DPA fiber cells while Cer d18:1/20:0, Cer d18:1/22:0, and GIPC t18:0/h18:0 were significantly enriched in 20-DPA fiber cells, indicating that unsaturated PhytoCer containing hydroxylated and saturated very long chain fatty acids (VLCFA) play some role in fiber cell elongation. Consistent with the content analysis results, the related genes involved in long chain base (LCB) hydroxylation and unsaturation as well as VLCFA synthesis and hydroxylation were highly expressed in rapidly elongating fiber cells. Furthermore, the exogenous application of a potent inhibitor of serine palmitoyltransferase, myriocin, severely blocked fiber cell elongation, and the exogenous application of sphingosine antagonized the inhibition of myriocin for fiber elongation. Taking these points together, we concluded that sphingolipids play crucial roles in fiber cell elongation and SCW deposition. This provides a new perspective for further studies on the regulatory mechanism of the growth and development of cotton fiber cells.

scholarly journals The Improved Phytoextraction of Heavy Metals and the Growth of Trifolium repens L.: The Role of K2HEDP and Plant Growth Regulators Alone and in Combination

2021 ◽  
Vol 13 (5) ◽  
pp. 2432
Author(s):  
Anna Makarova ◽  
Elena Nikulina ◽  
Tatiana Avdeenkova ◽  
Ksenia Pishaeva
Keyword(s):  
Heavy Metals ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Trifolium Repens ◽  
Growth And Development ◽  
Water Infiltration ◽  
Iron Chelates ◽  
Iron Chelate ◽  
Trifolium Repens L

Heavy metals are among the most widespread pollutants in soil. Phytoextraction technology is used to solve the problem of multi-metal-contaminated soil. The efficiency of this process can be increased by introducing various amendments. A soil amendment is any material added to a soil to improve its physical properties, such as water retention, permeability, water infiltration, drainage, aeration, and structure. Some chemical amendments for enhanced phytoextraction, such as amino polycarboxylates chelators, can be hazardous to the environment and perform poorly at pH > 8. The effect of the potassium salt of hydroxyethylidene diphosphonic acid (K2HEDP), plant growth regulators (PGRs), and iron chelate alone and in combination on the phytoextraction by Trifolium repens L. seedlings of Cd, Ni, and Cu was studied in this work. K2HEDP works in a wider pH range. The results of this study confirmed that amino polycarboxylate chelators, with the sodium salt of ethylene diamine tetraacetic acid (Na2EDTA) as an example, have a pronounced negative effect on the growth and development (organ mass) of Trifolium repens L. seedlings. K2HEDP, proposed by the authors instead of Na2EDTA, produced a pronounced positive effect on plant growth and development, which was further enhanced by the use of PGRs and with iron chelates. However, it should be noted that K2HEDP showed significantly lower efficiency in trials on the Trifolium repens L. seedlings. The highest was the efficiency of K2HEDP with PGRs and iron chelates for the phytoextraction of Cd.

Effect of foliar application of chelated copper and manganese on yield components and fibre properties of Egyptian cotton (Gossypium barbadense)

1993 ◽  
Vol 121 (2) ◽  
pp. 193-198 ◽  
Author(s):  
Z. M. Sawan ◽  
M. H. Mahmoud ◽  
B. R. Gregg
Keyword(s):  
Yield Components ◽  
Agricultural Research ◽  
Foliar Application ◽  
Field Studies ◽  
Gossypium Barbadense ◽  
Research Centre ◽  
Fibre Properties ◽  
Foliar Sprays ◽  
Egyptian Cotton ◽  
Cotton Cultivar

SUMMARYA decline in supplies of organic manures and the increased use of chemical fertilizers has led to a decrease in the micronutrient content of the soil, with attendant effects on yield.Field studies were conducted in 1986 and 1987 at the Giza Agricultural Research Centre, Egypt, to determine the effect of Cu-EDTA and Mn-EDTA foliar sprays on growth, mineral content, yield components and fibre properties of the Egyptian cotton cultivar Giza 75 (Gossypium barbadense L.).All combinations used significantly increased the uptake of Cu and Mn and the dry matter yield. The earliness of harvest and the value of yield components were all increased by the application of Cu or Mn; 25 mg/1 of both Cu and Mn gave the highest values. Lint percentage and fibre properties were not significantly affected.This study indicated that the yield of cotton, grown under otherwise standard conditions, may be increased by foliar sprays of Cu-EDTA and Mn-EDTA combined.

scholarly journals Приемы возделывания арбуза на семена

2019 ◽  
Author(s):  
T.G. Koleboshina ◽  
E.A. Varivoda
Keyword(s):  
Seed Yield ◽  
Growth Regulators ◽  
Growth And Development ◽  
Unit Area ◽  
Optimal Methods ◽  
Transvolga Region

Приведена оценка эффективности приемов выращивания арбуза столового на семенные цели в условиях Волгоградского Заволжья в 2015 2016 годах. Показано значение использования регуляторов роста и способов обработки почвы на урожайность, рост и развитие растений арбуза столового и выход семян с единицы площади. Определены оптимальные приемы предпосевной обработки почвы и семян при выращивании арбуза столового на семенные цели.Effectiveness of methods of growing watermelon table for seed purposes in the conditions of the Volgograd TransVolga region in 2015 2016 is evaluated. The importance of the use of growth regulators and methods of tillage on the yield, growth and development of watermelon plants and seed yield per unit area is shown. The optimal methods of seedbed and seed preparation for growing watermelon for seed purposes.

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