Qiang Zhang^1,#, Dongsheng Gai^1,#, Yong Liu¹, Weiyang Liu¹, Pengcheng Fu¹, Xiwen Shao¹, Xuanhe Liang², Yanqiu Geng^1,*, Liying Guo^1,*

Phyton-International Journal of Experimental Botany, Vol.94, No.1, pp. 269-279, 2025, DOI:10.32604/phyton.2025.060551 - 24 January 2025

Abstract The yield of direct-seeded rice (DSR) was constrained by inadequate grain filling. Recent studies have indicated that paclobutrazol application plays a significant role in enhancing crop agronomic traits and increasing yield. This study aimed to examine the effects of paclobutrazol seed soaking (PSS) on non-structural carbohydrate accumulation and grain enrichment in DSR, potentially providing a theoretical foundation for achieving high-yield DSR cultivation. The experiment utilized two rice varieties, Jiyujing (JYJ) and Jijing305 (JJ305), with seeds soaked in paclobutrazol concentrations of 0 mg L⁻¹ and 100 mg L⁻¹. PSS demonstrated increased chlorophyll content, net photosynthetic rate, and… More >

Hossam S. El-Beltagi^1,2,*, Mohamed Fathi El-Nady³, Adel A. Rezk^1,4, Abdelaziz M. Tahoon⁵, Mohammed I. Al-Daej¹, Dina Abdulmajid⁶, Mohamed M. El-Mogy⁷, Elsayed Abd Elmaksoud Abomarzoka⁸, Sherif Mohamed El-Ganainy^7,9, Metwaly Mahfouz Salem Metwaly³

Phyton-International Journal of Experimental Botany, Vol.93, No.10, pp. 2535-2556, 2024, DOI:10.32604/phyton.2024.056734 - 30 October 2024

Abstract Rice (Oryza sativa L.) is one of the most important cereal crops in the world. Bakanae disease is a significant rice disease widely distributed in rice-growing regions worldwide. Therefore, the present investigation aimed to assess the optimal concentrations of paclobutrazol (PBZ) as a treatment for rice grains (cv. Sakha 108) to control bakanae disease, also evaluating its impact on grain germination, seedling growth parameters as well as disease index. Paclobutrazol concentrations had no significant impact on seed germination, regardless of whether the seeds were incubated with Fusarium fujikuroi or not. Application of PBZ, either alone or in… More >

Yanqing Wu^1,2, Jiao Liu¹, Daqiu Zhao², Jun Tao^1,2,*

Phyton-International Journal of Experimental Botany, Vol.91, No.9, pp. 2017-2032, 2022, DOI:10.32604/phyton.2022.020643 - 13 May 2022

Abstract Herbaceous peony (Paeonia lactiflora Pall.) is an important ornamental plant worldwide. In its natural state, P. lactiflora often manifests traits like rapidly elongating internodal growth, loose plant types, and soft inflorescence stems. However, very little has been known about the measures for controlling these traits. This study investigated the effect of applying paclobutrazol (PBZ) on the plant growth and flower quality in P. lactiflora. The results indicated that PBZ application reduced the plant height (8.05%), plant crown width (14.72%), and leaf area (10.90%), but increased the leaf thickness (18.18%) and stem diameter (over 11%) in P. lactiflora. Meanwhile, PBZ… More >

Laura Raquel Orozco-Meléndez¹, Ofelia Adriana Hernández-Rodríguez¹, Oscar Cruz-Álvarez¹, Loreto Robles-Hernández¹, Graciela Dolores Ávila-Quezada¹, Esteban Sánchez Chavez², Damián Aarón Porras-Flores¹, Dámaris Leopoldina Ojeda-Barrios^1,*

Phyton-International Journal of Experimental Botany, Vol.91, No.1, pp. 1-12, 2022, DOI:10.32604/phyton.2022.016908 - 16 August 2021

Abstract There are documentary records referring to paclobutrazol (PBZ) as a growth bioregulator that inhibits the gibberellin synthesis and its application increases yields in fruit and vegetable crop productions. Its agronomic management includes it as an emerging technology to reduce vigour, promote flower induction and flower development in fruit trees with increased economic returns. Its use is banned in some countries because of concerns about residues that can cause harmful effects on the environment. Therefore, the aim of this article was to collect, analyse and summarise relevant information on the use of PBZ in fruit tree… More >

García Osuna HT, A Benavides Mendoza, L Escobedo Bocardo, JA Villarreal Quintanilla, E Cornejo Oviedo

Phyton-International Journal of Experimental Botany, Vol.80, pp. 175-179, 2011, DOI:10.32604/phyton.2011.80.175

Abstract Turbinicarpus valdezianus is a species under special protection, according to the current law NOM-059-ECOL-2010. It spreads preferably through shoot proliferation in vitro. A common problem associated with the propagation of this species by tissue culture is the hyperhydricity or excess of water accumulation in the tissues of shoots explants. The literature on this topic indicates that such response is related with oxidative stress. Because of this, the effects of inhibitors of the gibberellins [paclobutrazol (PBZ) and calcium prohexadione (PCa)] and salicylic (SA) and benzoic acids (BA) were tested to diminish the hiperhydrycity of the sprouts, which was… More >