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

Umesha, Umesha; Vasudevan, S. N.; Bhanuprakash, K.; Manjunatha, B.; Sarika, G.

doi:10.31018/jans.v8i2.885

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…GA 3 is widely applied to improve the performance of aged seed. Yin et al 2015and Umesha et al (2016) reported that GA 3 priming recovered the germination in artificially aged seeds of Brassica napus and aged onion seeds due to the reactivation of enzyme activities and proteins related to germination. Auxin-priming was found to increase the germination, amount of seminal roots and activities of antioxidant enzymes of deteriorated tall wheatgrass seeds (Eisvand et al 2010).…”

Section: R a F T Discussionmentioning

confidence: 99%

A newly discovered ageing-repair bacterium,Pseudomonas geniculata, isolated from rescuegrass (Bromus cartharticusVahl) promotes the germination and seedling growth of aged seeds

Liu

Zhao

Gao

et al. 2019

Botany

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Plant-growth-promoting rhizobacteria (PGPR) have been shown to relieve various biotic and abiotic stresses, but little information is available regarding their influence on germination and seedling growth of aged seeds. We isolated a promising PGPR from rescuegrass (Bromus cartharticus Vahl) roots and investigated the effect of PGPR biopriming combined with another seed priming treatment on aged rescuegrass seeds using an orthogonal matrix design with four factors. A potential ageing-repair bacterium, BCR5 (Pseudomonas geniculata), was selected from the screening trials and was identified. The reintroduction of strain BCR5 into the aged seeds pre-primed with different approaches had positive effects on germination and seedling growth. The results indicated that the bacterial cell density was the most effective factor for seed germination and vigour. Four factors were optimized for this study, including an artificial ageing duration of 54.21 h, bacterial cell density of 527.50 × 106 CFU·mL−1, and priming with H2O2 for 14.50 h, after analyzing the range and variance, and using binary quadratic regressions. Furthermore, the treatment also affected the content of malondialdehyde and the activities of superoxide dismutase and peroxidase. Bio-priming of the PGPR with another seed priming approach could be exploited as a promising technique for reinvigorating aged seeds. Moreover, we unexpectedly found that an appropriate artificial ageing treatment could break seed dormancy.

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Section: R a F T Discussionmentioning

confidence: 99%

A newly discovered ageing-repair bacterium,Pseudomonas geniculata, isolated from rescuegrass (Bromus cartharticusVahl) promotes the germination and seedling growth of aged seeds

Liu

Zhao

Gao

et al. 2019

Botany

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“…In the present investigation, it was observed that percent improvement in seed quality due to seed priming in old lot (aged seeds) is more as compared to fresh lot (Table 2). Umesha et al, (2016) opined that seed deterioration can be rectified to the extent possible by the technique of seed priming. Their study of biochemical investigations on vigour enhancement in aged seeds upon seed priming in onion clearly indicated that priming would reestablish the lost seed vigour in aged seeds due to reactivation of enzyme activity in old seeds.…”

Section: Effect Of Seed Priming On First Count and Seed Germinationmentioning

confidence: 99%

Development of priming technology for enhanced planting value of seeds in kabuli chickpea (Cicer arietinum L.)

Hiremath

Gowda

G.Y

et al. 2021

JANS

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The continuous rise in global population demands more food production under limited land resources accompanied by climate change. More oversupply of quality seeds to meet ever-growing food demand is a highly challenging task. Seeds with low vigour level limit the growth and yield of crops at varied field conditions. Hence, an experiment was conducted to develop a technique for the fast and homogeneous growth of kabuli chickpea seeds. The priming treatments evaluated in the present study enhanced the various seed quality parameters of kabuli chickpea significantly when compared to control. Hydro-priming for 4 hours (at 20°C) and air drying for 72 hours showed better results compared to rest of the treatments both in fresh seeds which recorded higher first count (66.38%), germination (92.50%) root length (11.85 cm), shoot length (6.16), mean seedling length (18.01), dry seedling weight (747 mg), seedling vigour index-I (1665), higher speed of emergence (0.3992) and old seeds with higher first count (61.88%), germination (74.13%) root length (8.15 cm), shoot length (5.85 cm), mean seedling length (14.00 cm), seedling dry weight (611 mg), seedling vigour index-I (1056), higher speed of emergence (0.3814). The aged seeds have recorded 29 % increase in germination percentage in contrast to 8 percent increases in fresh seeds. Kabuli chickpea seeds could be subjected to hydropriming, an affordable, alternative, and eco-friendly technique for improving seed and seedling vigour of kabuli chickpea.

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Physiological potential of onion seeds stored in different packings and environments

et al. 2020

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Storage is a fundamental step for maintaining seed quality after processing. Thus, in this study, we evaluated the physiological potential of onion seeds stored in different packings and environments. Impermeable, semi-permeable and permeable packings were tested under natural environment conditions (+19ºC), cold and dry chamber (10±2ºC and 33% RH) and cold chamber (16±2ºC and 60% RH), at 0, 90, 180, 270 and 360 days. The design was completely randomized in a 3x3x5 factorial scheme, with three replicates. In order to evaluate emergency in field, a 3x3 factorial arrangement (packing x environment) was adopted. Onion seeds maintained their physiological quality when stored in impermeable packing for 360 days, regardless of the environment. The seeds' physiological quality was maintained in the other packings when stored in a cold or cold and dry chamber, with viability and vigor above 80% up to 180 days of storage.

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

Cited by 3 publications

References 11 publications

A newly discovered ageing-repair bacterium,Pseudomonas geniculata, isolated from rescuegrass (Bromus cartharticusVahl) promotes the germination and seedling growth of aged seeds

A newly discovered ageing-repair bacterium,Pseudomonas geniculata, isolated from rescuegrass (Bromus cartharticusVahl) promotes the germination and seedling growth of aged seeds

Development of priming technology for enhanced planting value of seeds in kabuli chickpea (Cicer arietinum L.)

Physiological potential of onion seeds stored in different packings and environments

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