The physiological and biochemical parameters of bougainvillaea as well as many ornamental plants can be controlled by triacontanol (TRIA), a plant growth regulator contained in epicuticular waxes. Many researchers have recorded that treatment with TRIA improves growth, yield, protein synthesis, photosynthesis, absorption of water and nutrients, fixation of nitrogen, activity of enzymes and free amino acid content, soluble protein, sugar reduction and biochemical constituents in different crops. The increase in dry matter production mediated by TRIA may influence the interrelationship between primary and secondary metabolism, leading to increased secondary product biosynthesis. There is clear evidence in several studies that the application of TRIA to either the root medium or leaves improved the growth and yield of vegetables and other crops, including agronomic and horticultural crops, as well as medicinal and aromatic crops, under usual and unfavourable conditions. TRIA therapies boost advanced flowering, With TRIA therapies. In Bougainvillea plants, TRIA raises the levels of N, P and K, total soluble solids (TSS), and sugar and protein content. In addition, in the treatment with TRIA, more flowers, increased bract weight, increased longevity and less leaf abscission are noticed. With TRIA treatments, the phenol and flavonoid material, sucrose phosphate synthase (SPS) and antioxidant activities are also markedly increased. TRIA treatment, however, decreases the yield of treated plants for ethylene production. Positive correlations between leaf TSS and flowering time and flower number, between the content of leaf sugar and bract weight, and between net photosynthesis and bract growth and the development of dry matter are observed. It can be concluded that TRIA's foliar spray stimulates growth, improves flowering and improves the quality of Bougainvillea potted plants. The present review covers TRIA's main role in plant growth and development, its mode of action and its importance in enhancing plant growth and development. Ornamental crop production and quality.
Author (s) Details
Alyaa H. Hatem
Department of Physics, College of Education for Girls, Kufa University,
Iraq.
Eman A. Al-Hilo
Department of Physics, College of Education for Girls, Kufa University, Iraq.
Saleem A. Hussain
Department of Physics, College of Education, Al-Qadisiyah University, Iraq.
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