![]() ![]() Demir and Mavi reported that priming watermelon seeds with KNO 3 increased seed emergence and improved seedling growth under greenhouse conditions in early spring. Osmopriming has been shown to improve spinach germination at 5 and 20☌. Primed tobacco seeds with putrescine significantly increased seed GV and seedling biomass compared with nonprimed control during chilling stresses. Seed priming can significantly improve bitter gourd seed germination vigor (GV) and upregulate the levels of multiple anti-oxidative enzymes. For example, priming seeds with CaCl 2 can improve wheat and maize chilling tolerance in late-sown conditions. Seed priming is an effective method to improve plant tolerance to low temperatures. Consequently, the seedlings derived from primed seeds often exhibit enhanced tolerance to abiotic stresses. Seed priming has also been shown to reduce cellular damages during water imbibition. ![]() In addition, priming can enhance DNA replication and repair as well as respiratory associated pathways. Several studies have indicated that seed priming can induce enzyme activities and increase the production of antioxidants and biosynthesis of carbohydrates, phytohormones, late embryogenesis abundant proteins, and many other proteins, including heat shock proteins. ![]() Seed priming activates pre-germinative metabolic events to hasten rapid and uniform seed germination. Seed priming is a physiological method that involves seed hydration and is effective enough for enhancing seed germination, early seedling growth, and yield under stressed and nonstressed conditions but is insufficient to allow radical protrusion. Seed priming is a method that can be used to improve seed vigor by enhancing seed germination rate (GR) and uniformity of emergence. Therefore, their germination and seedling emergence are one of the major concerns of farmers. Cauliflower and broccoli seeds are often sown in greenhouse, seed beds, or open field in winter or in early spring. Temperature is an important factor that can affect seed germination and emergence significantly. italica) are important vegetable species widely cultivated and consumed. The funders had no role in study design,data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist.Ĭauliflower ( B. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All relevant data are within the paper.įunding: Weimin Zhu and Lingyun Wu received the Shanghai Agriculture Applied Technology Development Program, China(Grant No.T20190112 and Grant No.G2016060105). ![]() Received: FebruAccepted: SeptemPublished: October 3, 2022Ĭopyright: © 2022 Ling-Yun et al. PLoS ONE 17(10):Įditor: Thomas Roach, University of Innsbruck, AUSTRIA SMP is an effective method for improving seed germination and the emergence of cauliflower and broccoli under suboptimal temperature conditions.Ĭitation: Ling-Yun W, Jun Y, Zhi-wu H, Yan-Hui W, Wei-Min Z (2022) Solid matrix priming improves cauliflower and broccoli seed germination and early growth under the suboptimal temperature conditions. Inside a greenhouse, the SMP improved the emergence of cauliflower and broccoli seeds during the early spring season. It was observed that the suboptimal temperature conditions (i.e., 10 and 15☌) suppressed SM-primed and nonprimed seed germination and early seedling growth of cauliflower and broccoli. The results showed that the SMP improved seed germination vigor and early seedling growth and increased the activities of peroxidase and ascorbate peroxidase in the germinating cauliflower and broccoli seeds under the suboptimal temperature conditions in the early germination stage compared with nonprimed seeds. The SMP method used in this study included the following steps: (1) mixing seeds with vermiculite and water at a ratio of 2:3:2.5 ( w/ w/ v) and incubating for 2 days in the dark at 20☌ (2) drying the SM-primed seed (3) germinating the SM-primed and the nonprimed seeds at 10, 15, 20, and 25☌ (4) analyzing the antioxidant enzyme activities of SM-primed and nonprimed germinating broccoli and cauliflower seeds in the early germination stage at 10, 15, 20, and 25☌ and (5) testing the emergence of SM-primed and nonprimed control seeds in the early spring glasshouse. This study aimed to analyze the effects of solid matrix priming (SMP) on cauliflower and broccoli seed germination and early seedling growth under suboptimal temperature conditions. Seed priming is an effective method for imparting stress tolerance to plants. ![]()
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