The present review article is dealing with the potentiality of micronutrients in terms of seed priming treatment and its effect within the plant system is considered. Since last 3 to 4 deca...

Impact of micronutrient seed priming on germination, growth, development, nutritional status and yield aspects of plants

Low temperature is one of the abiotic factors limiting germination, growth and distribution of the plant in current plant-products industry, especially for the tropical vegetables in non-tropical area or other fields under cold temperature. Screening the plant with ability against cold temperature captured worldwide attention and exerted great importance. In our previous work, the anti-cold specie of Momordica Charantia L. seedlings was screened out. Yet, the molecular and physiological mechanisms underlying this adaptive process still remain unknown. This study was aimed to investigate adaption mechanism of anti-cold species of Momordica Charantia L. seedlings in genetical and metabolomics levels. Two species, cold-susceptible group (Y17) and cold-resistant group (Y54), were evaluated containing the indexes of malondialdehyde (MDA), hydrogen peroxide (H2O2), proline content, activities of antioxidant enzymes, metabolites changes and genes differentiation in plant tissues after cold treatment. It found that low temperature stress resulted in increased accumulation of MDA, H2O2 and proline content in two species, but less expressions in cold-resistant species Y54. As compared to Y17, cold-resistant species Y54 presented significantly enhanced antioxidant enzyme activities of POD (peroxidase), CAT (cataalase) and SOD (superoxide dismutase). Meanwhile, higher expressed genes encoded antioxidant enzymes and transcription factors when exposure to the low temperature were found in cold-resistant species Y54, and core genes were explored by Q-PCR validation, including McSOD1, McPDC1 and McCHS1. Moreover, plant metabolites containing amino acid, sugar, fatty acid and organic acid in Y54 were higher than Y17, indicating their important roles in cold acclimation. Meanwhile, initial metabolites, including amimo acids, polypeptides, sugars, organic acids and nucleobases, were apparently increased in cold resistant species Y54 than cold susceptible species Y17. Our results demonstrated that the Momordica Charantia L. seedlings achieved cold tolerance might be went through mobilization of antioxidant systems, adjustment of the transcription factors and accumulation of osmoregulation substance. This work presented meaning information for revealing the anti-cold mechanism of the Momordica Charantia L. seedlings and newsight for further screening of anti-cold species in other plant.

/pdf/gene-expression-and-metabolic-changes-of-momordica-charantia-4ywphurkp6.pdf

Gene expression and metabolic changes of Momordica charantia L. seedlings in response to low temperature stress.

The poor seedling problem in bitter gourd is caused by the embryo being enclosed by a thick seed coat that prevents germination by putting mechanical restrictions on embryo development. Pre-germinated bitter gourd seeds may be planted to overcome this problem. Crop priming is the process of enhancement of germination and uniform emergence of seedlings under field conditions. As it can foster vigour and crop growth and ultimately increase yields. It is a very low-cost hydration technique in which seeds are prepared with various chemicals or also with natural water. The seeds are re-dried after processing and shown in the field. For improved crop stand, germination and yield of different vegetable crops, seed priming is commonly adopted. Hydropriming, osmopriming, halopriming, solid matrix priming, biopriming and hormonal priming are different priming techniques to boost plant growth, improve stress tolerance, increase nutrient efficiency and other plant growth factors.

https://www.phytojournal.com/archives/2020/vol9issue6/PartAB/9-6-142-201.pdf

Effects of seed priming and it's duration on bitter gourd

Seeds of chilli cv. Pusa Jwala and coriander cv. Akash Ganga primed with water (hydro priming), GA3 (50, 100 & 150 ppm), PEG 6000 (-1.1 & -1.5 MPa) for 12, 24 and 36 hours at 25°C and keeping unprimed seeds as control were tested to study the priming effects on germination and seedling growth traits. Significant variation for germination percent, fresh ungerminated seeds, mean germination time, germination index, seed vigour index, root and shoot length, seedling fresh and dry weight, and seedling emergence were observed among the treatments. For both the crops, GA3 and PEG priming were found the most effective. Twelve hours of hydro-priming and 24 hours of GA3 and PEG priming were found to be the best duration. GA3 @ 50 ppm and PEG 6000 @ -1.1 MPa were the best for enhancement of germination and seedling growth traits in both the crops.

https://www.phytojournal.com/archives/2018/vol7issue1/PartAK/7-1-265-932.pdf

Germination performance of chilli (Capsicum annuum L.) and coriander (Coriandrum sativum L.) as affected by seed priming treatments

Comparative Effects of Organic and Inorganic Priming on Seed Quality Parameters of Fenugreek (Trigonella foenumgraecum L.)

The experiment was conducted in Post Graduate Laboratory Department of Genetics and Plant Breeding SHUATS, Allahabad, U.P during 2015-2017, in order to standardize the suitable methods of priming of along with control Bitter guard seeds. Seeds of Bitter gourd primed with hydro-priming, halo-priming, osmo-priming were evaluated by screening a range of durations and concentration viz, T0 - Unprimed Control, T1-2 - Distilled water hydration (for 6 and 12 hrs), T3-4 NaCl (for 6 and 12 hrs) and T5-6 PEG (for 6 and 12 hrs). Observation shows that the Osmo-priming 12 hrs of Bitter Guard displayed significant high percent of seed germination, seedling length, fresh weight, dry weight, speed of germination and vigour as compared to other treatment and unprimed. Less priming time performance decreased germination and vigour of seeds. It is also found that osmo-priming 12 hrs could to be increase the seedling parameters. The present study helps to improve the seedling parameters with the help of seed priming treatments which are cost effective and economic, non toxic, eco friendly sources.

https://www.phytojournal.com/archives/2017/vol6issue5/PartM/6-5-4-308.pdf

Effect of different seed priming treatments and its duration on seedling characters of Bitter gourd (Momordica charantia L.)

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Effect of different seed priming treatments and its duration on seedling characters of Bitter gourd (Momordica charantia L.)