Sub1 and qDTY3.1 improved tolerance of rice (Oryza sativa L.) lines to drought and submergence stresses

Ikmal, Asmuni Mohd; Shamsudin, Noraziyah Abd Aziz; Ratnam, R Wickneswari V; Oyebamiji, Yusuf Opeyemi

doi:10.1007/s10681-023-03189-y

Cited by 2 publications

(1 citation statement)

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“…Many studies have successfully utilized MAS to improve crops' tolerance to different abiotic stresses such as drought, salinity, and waterlogging in rice [51], heavy metals in rice [52], drought and heat stress in rice [53], drought in wheat [54], and heat stress in chilli and rice [55]. Recently, Mohd Ikmal et al [56] reported success in the introduction of Sub1 into the background of UKM91 (with drought yield QTL qDTY 3.1 ). The resultant lines performed better under both stressed and non-stressed conditions, with grain yield advantages of up to 1713 kg/ha and 1028 kg/ha over UKM91, respectively.…”

Section: Qtl Mapping and Marker-assisted Breedingmentioning

confidence: 99%

Recent Advancements in Mitigating Abiotic Stresses in Crops

Oyebamiji,

Adigun,

Shamsudin

et al. 2024

Horticulturae

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In recent years, the progressive escalation of climate change scenarios has emerged as a significant global concern. The threat to global food security posed by abiotic stresses such as drought, salinity, waterlogging, temperature stress (heat stress, freezing, and chilling), and high heavy metal accumulation is substantial. The implementation of any of these stresses on agricultural land induces modifications in the morphological, biochemical, and physiological processes of plants, leading to diminished rates of germination, growth, photosynthesis, respiration, hormone and enzyme activity disruption, heightened oxidative stress, and ultimately, a reduction in crop productivity. It is anticipated that the frequency of these stresses will progressively escalate in the future as a result of a rise in climate change events. Therefore, it is crucial to develop productive strategies to mitigate the adverse effects of these challenges on the agriculture industry and improve crop resilience and yield. Diverse strategies have been implemented, including the development of cultivars that are resistant to climate change through the application of both conventional and modern breeding techniques. An additional application of the prospective and emerging technology of speed breeding is the acceleration of tolerance cultivar development. Additionally, plant growth regulators, osmoprotectants, nutrient and water management, planting time, seed priming, microbial seed treatment, and arbuscular mycorrhiza are regarded as effective methods for mitigating abiotic stresses. The application of biochar, kaolin, chitosan, superabsorbent, yeast extract, and seaweed extract are examples of promising and environmentally benign agronomic techniques that have been shown to mitigate the effects of abiotic stresses on crops; however, their exact mechanisms are still not yet fully understood. Hence, collaboration among researchers should be intensified to fully elucidate the mechanisms involved in the action of the emerging technologies. This review provides a comprehensive and current compilation of scientific information on emerging and current trends, along with innovative strategies to enhance agricultural productivity under abiotic stress conditions.

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