Biochemical Changes Due to Seed Priming in Maize Hybrid COH(M) 5

Sathish, S.; Sundareswa, S.; Senthil, N.; Ganesan, K.N.

doi:10.3923/rjss.2012.71.83

Cited by 11 publications

(12 citation statements)

References 19 publications

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“…In the context of this study, hydropriming resulted in an early start of germination that might have been induced by the seedling (shoot + root lengths in cm) enlargements and uniform emergence as evidenced by improvement in dry matter (seedling dry weight in gm) production as expressed in both the vigour indices (Table 3 and 4). These findings support the prior work in maize (Sathish et al, 2012) and rice (Farooq et al, 2006) who explained superior rate and percentage of seed germination because of hydro-priming. Increased germination percentage, seedling growth, and dry weight appeared to be related to the proficient mobilization and exploitation of seed reserves, thereby, guiding to an early start of germination events (Basra et al, 2005).…”

Section: Seedling Length Dry Weight and Vigour Indicessupporting

confidence: 91%

Hydropriming associated physiological and biochemical changes responsible for the enhanced planting value of maize hybrid and its parental line seeds

Mir¹,

Yadav²,

Yadav³

2021

Turk J Agric For

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Hydropriming has the potential to ameliorate the stress-induced ill effects on yields of the crop plants and quality of seed produced. In the present study, half of the fresh seeds of maize hybrid, PEHM 5 and its parental lines (Female -CM 150, Male -CM 151) were subjected to accelerated aging test for bringing down the viability and vigour, thereby creating low vigour lots while high vigour lots consisted of fresh seeds, which were hydroprimed (30 h at 25 °C). Half of the hydroprimed seeds were surface dried while the other half were redried back to the original moisture contents. All the seed lots after treatments were evaluated for performance of physiological and biochemical parameters viz.: germination test, vigour index, electrical conductivity of seed leachates, and antioxidant enzyme activities. Results divulged significant improvement of germination and the seedling growth parameters in both the treatments: surface dried and redried after hydropriming over untreated seeds. Significant improvement was observed in root and shoot lengths, dry weight of seedlings, and vigour indices of surface dried maize seeds, and this treatment also resulted in earlier and synchronized germination. A steady increase was also noted in the activities of four key antioxidant enzyme systems: peroxidase (POX), superoxide dismutase (SOD), catalase (CAT), and glutathione reductase (GR) in both high and low vigour seed lots of hybrid and its parental lines upon hydropriming irrespective of surface dried or redried strategies. It is, therefore, suggested that hydro priming could improve the seed vigour by protecting the seed from oxidative damage by reactive oxygen species by the increasing activities of antioxidant enzymes. The surface dried seed showed all the benefits of seed priming in terms of seed quality parameters and enhanced antioxidant defense mechanism as compared to redried seeds. Therefore, surface drying could be promulgated as an effective and simple technique to mitigate the ill effects while sowing maize seeds under unfavorable growing conditions.

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Section: Seedling Length Dry Weight and Vigour Indicessupporting

confidence: 91%

Hydropriming associated physiological and biochemical changes responsible for the enhanced planting value of maize hybrid and its parental line seeds

Mir¹,

Yadav²,

Yadav³

2021

Turk J Agric For

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“…The increase in the germination of primed seeds might be due to increase in the synthesis of these enzymes. Similar results also have been reported in various crops (McDonald, 1999,Sathish et al 2012. Several enzymes have been investigated in relation to seed priming which are associated with early hours of germination by various scientists on a variety of crops.…”

Section: Resultssupporting

confidence: 79%

Biochemical investigations on vigour enhancement in aged seeds upon seed priming in onion

Umesha

Vasudevan

Bhanuprakash

et al. 2016

JANS

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Loss in seed quality that occurs during all process, from maturation in the field to storage, leads to seed deterioration. Storage of onion seeds under ambient, hot and humid conditions is very problematic since these conditions deteriorate seed quality faster. Seed deterioration is associated with many metabolic defects that occur due to changes in enzymes and protein levels. This deterioration can be rectified to the extent possible by the technique of seed priming. The results clearly indicated that priming will restore the lost seed vigour in aged seeds due to reactivation of enzyme activity in old seeds. The germination percentage improved from 60% to 79.5% and 72.5% in GA3 and hydroprimed, respectively. Priming will also restore the lost seed vigour in aged seeds due to reactivation of proteins in old seeds and expression of these proteins in priming treatments are related to priming induced proteins in contrast to their absence in the aged seeds which are necessary for germination and longevity of seeds.

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“…Maximum seed germination percentage (86.66%) was noticed when the seeds soaked in KH2PO4 @ 0.5% (T7) and it was on par with KNO3 @ 0.5% (T9) (82.22) and putrescine @ 25 mM (T11) (80.00%), whereas, minimum seed germination percentage (54.44%) was recorded with salicylic acid @ 2 mM (T16).The minimum number of days taken for initiation of germination, days required to reach 50% germination and increase in germination percentage as a result of seed treated with KH2PO4 @ 0.5% (T7) in the present study might be due to weakened the seed coat by the chemical and may also due to the fact that germination inhibitors might have washed away due to priming. The current study findings are in accrordance with results of Sahib et al [12] in okra, Singh and Bassi [13] in bitter gourd, Aswin et al [9] in tomato, Sathish et al [14], Balaji and Narayanan et al [15] in maize cv. CO1 and Yari et al [11] in wheat seeds…”

Section: Seed Germination (%)supporting

confidence: 90%

Effect of Different Pre - Sowing Seed Treatments on Germination and Growth of Papaya (Carica papaya L.) Seedlings cv. Arka Surya

Rao,

Krishna,

Srinivasulu

et al. 2023

IJECC

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A study on effect of pre-sowing seed treatments with organics, chemicals and plant growth regulators on seed germination and seedlings growth of papaya cv. Arka Surya was carried out at YSRHU- College of Horticulture, Anantharajupeta during the year 2021 - 2022, under complete randomized design with eighteen treatments and replicated thrice. The papaya seeds were subjected to various organic, chemicals and plant growth regulators treatments. Papaya seeds soaked in KH2PO4 @ 0.5% (T7) had recorded minimum days for initiation of germination (8.67) and 50% germination (10.34). The treated seeds had also recorded maximum germination percentage (86.66), germination index (1.16), dry weight of shoots (2.00 g), tap root length (26.33 cm), number of lateral roots per seedling (22.84), dry weight of roots (0.79 g), quality index of papaya seedlings (0.47) and seedling survivability (100.00%). In addition the same treatment exhibited higher chlorophyll content (3.51 and 3.91 mg/g), photosynthetic rate (15.32 and 17.76 µmol Co2m-2s-1), transpiration rate (4.61 and 5.69 mmol m-2 s-1) and stomatal conductance (2.73 and 4.12 mol m-2 s-1) at 35 and 45 DAS, respectively. While the lowest values for germination and growth parameters were observed in treatment salicylic acid @ 2 mM (T16). Among all the treatments, KH2PO4 @ 0.5% (T7) was found to be superior to the other treatments followed by KNO3 @ 0.5% for the enhancement of germination, growth and physiological traits.

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Biochemical Changes Due to Seed Priming in Maize Hybrid COH(M) 5

Cited by 11 publications

References 19 publications

Hydropriming associated physiological and biochemical changes responsible for the enhanced planting value of maize hybrid and its parental line seeds

Hydropriming associated physiological and biochemical changes responsible for the enhanced planting value of maize hybrid and its parental line seeds

Biochemical investigations on vigour enhancement in aged seeds upon seed priming in onion

Effect of Different Pre - Sowing Seed Treatments on Germination and Growth of Papaya (Carica papaya L.) Seedlings cv. Arka Surya

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