Effects of 1,2,4-trichlorobenzene on Growth and Physiological Characteristics of Rice at Maximum Tillering Stage

Abstract

A soil culture experiment was conducted to study the effects of 1,2,4-trichlorobenzene (TCB) on morphological and physiological indexes of rice at maximum tillering stage, using rice cultivars of Ningjing 1 (TCB sensitive genotype) and Yangfujing 8 (TCB tolerant genotype), with four treatments of TCB concentrations including 0 (CK), 20, 40, and 60 mg kg -1 . The results indicated that the maximum root length, plant height, tillers per hill, shoot and root dry weight of Ningjing 1 were all decreased significantly (P<0.05) under different concentrations of TCB. Low TCB stress (20 mg kg -1 ) significantly increased Yangfujing 8's maximum root length, shoot and root dry weight, root activity (P<0.01), while medium and high TCB stresses (40 and 60 mg kg -1

Dominance complementation of parental heading date alleles of Hd1, Ghd7, DTH8, and PRR37 confers transgressive late maturation in hybrid rice

“…Therefore, these lines are unsuitable for cultivation in LDs, such as the early season of double‐cropping regions and most single‐cropping regions, by failing to reach the reproductive stage before late‐season planting begins or at the onset of the cold season (Liu et al., 2020; Matsubara et al., 2019; Song et al., 2014). However, hybrid rice varieties with strong PS are well adapted to late‐season growth (SD) in double‐cropping regions such as South China, where the day length changes from long to short during the growing season, temperatures go from high to low, and large temperature differences exist between day and night, resulting in high yields (Ding, 1964; Peng et al., 1993).…”

Hydrogen sulfide alleviates chlorobenzene toxicity in soybean seedlings

“…With the discharge of industrial waste, chlorobenzene, which is nonbiodegradable and can accumulate in the environment, enters in ecosystems in different ways, as polluted air, soil and water, potentially causing lasting harm. For example, the presence of 1,2,4-trichlorobenzene reduced maximum root length, plant height, tillers per hill, shoot and root dry weight in rice plants, as a result of changes in the activity of antioxidant enzymes, reactive oxygen species (ROS), malondialdehyde (MDA) and membrane lipid peroxidation (DING et al, 2014). Chlorobenzene also inhibited maize cell division and seedling growth, and the oxidative stress response increased proportional to the compound's degree of chlorination (MIGUEL et al, 2012).…”

Legume crops use a phosphorus-mobilising strategy to adapt to low plant-available phosphorus in acidic soil in southwest China

“…Root exudates play a critical role in plant root-soil rhizosphere microbial interactions and are considered a key mechanism for plants to adapt to low P environments (Li et al 2022b). Low P stress induces the release of organic acids and acid phosphatase in lupin (Lupinus micranthus Guss), soybean, common bean, maise (Zea mays L.), wheat (Triticum aestivum L.), rice (Oryza sativa L.), enhancing inorganic or organic P uptake (Alberto et al 2019, Tian et al 2019, Ding et al 2020. However, previous studies have focused on limited crop species and specific root traits, with few investigations into P-acquisition strategies across diverse legume crop species.…”