Use of Plant Growth Regulators (PGRs) in Enhancing Crop Productivity I: Effect of CaC2 as a Source of Ethylene on Some Agronomic Parameters of Wheat (Triticum aestivum L.)

2003 ◽  
Vol 3 (1) ◽  
pp. 68-71 ◽  
Author(s):  
Z. Ahmad ◽  
F. Azam . ◽  
T. Mahmood . ◽  
M. Arshad . ◽  
S. Nadeem .
Keyword(s):  
Triticum Aestivum ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Triticum Aestivum L ◽  
Crop Productivity

Assessment of growth, yield and economic analysis of wheat (Triticum aestivum L.) by plant growth regulators

2020 ◽  
Vol 53 (2) ◽  
Author(s):  
Zobia Bashir ◽  
Khalid Hussain ◽  
Iqra Iqbal ◽  
Khalid Nawaz ◽  
Ejaz Hussain Siddiqui ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Plant Growth ◽  
Economic Analysis ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Growth Yield ◽  
Triticum Aestivum L

Alleviation of salt stress by plant growth regulators in Triticum aestivum L.

1997 ◽  
Vol 39 (2) ◽  
pp. 269-275 ◽  
Author(s):  
K.S. Datta ◽  
S.K. Varma ◽  
R. Angrish ◽  
B. Kumar ◽  
P. Kumari
Keyword(s):  
Triticum Aestivum ◽  
Salt Stress ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Triticum Aestivum L

scholarly journals Plant growth regulators to manipulate oat stands

2008 ◽  
Vol 13 (1-2) ◽  
pp. 186 ◽  
Author(s):  
A. RAJALA
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Stand Structure ◽  
Stem Elongation ◽  
Triticum Aestivum L ◽  
Grain Weight ◽  
Biological Traits ◽  
Hordeum Vulgare L ◽  
Division Cell

Plant growth regulators (PGRs) are exogenously applied chemicals that alter plant metabolism, cell division, cell enlargement, growth and development by regulating plant hormones or other biological signals. For example, some PGRs regulate stem elongation by inhibiting biosynthesis of gibberellins or through releasing ethylene. PGR effects are widely studied and reported on barley (Hordeum vulgare L.) and wheat (Triticum aestivum L.), whereas there are only a few reports addressing oat (Avena sativa L.). This is likely to be a result of smaller acreage and lower intensity of oat management and production and hence a reduced need for stem shortening by PGRs. However, this is not the case for all cereal producing regions and there exists a need to understand the potential application of PGRs to oat production. This paper represents a review of the potential of PGRs to regulate stem elongation and other biological traits governing plant stand structure and yield components, with special emphasis on oat and its responses to PGRs. Yield improvement requires more heads per unit land area, more grains per head or heavier grains. Of these yield-determining parameters, the number of head bearing tillers and grain numbers per head, compared with grain weight, are more likely to be improved by PGR application. In the absence of lodging, PGR may reduce grain yield due to potential reduction in mean grain weight and/or grain number. Cultivation systems aiming at extensive yields with intensive use of inputs likely benefit from PGR applications more often compared with low or moderate input cultivation, for which cost effectiveness of PGRs is not frequently reached.;

scholarly journals Identification and Quantification of Plant Growth Regulators and Antioxidant Compounds in Aqueous Extracts of Padina durvillaei and Ulva lactuca

Agronomy ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 866 ◽  
Author(s):  
Israel Benítez García ◽  
Ana Karen Dueñas Ledezma ◽  
Emmanuel Martínez Montaño ◽  
Jesús Aarón Salazar Leyva ◽  
Esther Carrera ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Antioxidant Properties ◽  
Crop Productivity ◽  
Ulva Lactuca ◽  
Antioxidant Compounds ◽  
Seaweed Extracts ◽  
Identification And Quantification

Aqueous seaweed extracts have diverse compounds such as Plant-Growth Regulators (PGRs) which have been utilized in agricultural practices for increasing crop productivity. Algal biomass of Padina durvillaei and Ulva lactuca have been suggested for use as biofertilizers because of plant growth-enhancing properties. This work aimed to identify the main PGRs and antioxidant properties in P. durvillaei and U. lactuca extracts, such as abscisic acid, auxins, cytokinins, gibberellins, jasmonates, and salicylates, to assess their potential use as biofertilizers that improve plant growth and crop yield. Phytochemical analyses of two seaweed extracts showed a significantly higher content of sulfates, flavonoids, and phenolic compounds in P. durvillaei extract, which could be linked to its higher antioxidant activity (DPPH, ABTS, and FRAP) compared to U. lactuca extract. The identification and quantification of PGRs showed two gibberellins (GA1 and GA4), abscisic acid (ABA), indoleacetic acid (IAA), three cytokinins (tZ, IP, and DHZ), jasmonic acid (JA), and salicylic acid (SA) in two seaweed extracts. However, GA4, tZ, and DHZ contents were significantly higher in P. durvillaei compared to U. lactuca extracts. These findings evidence that P. durvillaei and U. lactuca extracts are suitable candidates for use as biofertilizers.

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