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 >

Ziwei Li^1,2, Lifen Huang^1,2, Zhongyang Huo^1,2, Min Jiang^1,2,*

Phyton-International Journal of Experimental Botany, Vol.92, No.11, pp. 2999-3019, 2023, DOI:10.32604/phyton.2023.030627 - 24 October 2023

Abstract The canopy temperature of rice is an important index that directly reflects the growth and physiological state of rice, and affects the yield of rice plants to a great extent. The correlation between the temperatures of different rice organs and canopy in different growth stages and the grain yield is complex. The stability and universality of these correlations must be verified. We conducted a pot experiment using two rice varieties and two temperature treatments (high temperature treatment was carried out at the beginning of heading stage for 10 days). We measured rice organ temperature during… More >