Abstract
Seed priming (seed invigouration) has gained a lot of importance in recent times as it emerged as a most promising area of seed quality enhancement technique. Priming is a pre-sowing treatment, that involves exposure of seeds to a low external water potential that limits hydration,(controlled hydration of seed) to a level that permits pre-germinative metabolic activity to proceed, but prevents actual emergence of the radical. Fresh seeds of cucumber was artificially aged as per ISTA standards to obtain low vigour seed lots. Both high vigour (unaged) and low vigour (aged) seeds were subjected to seed priming with various chemicals (water, KH2PO4, ,K2HPO4,oxalic acid,gibberellic acid,KNO3,calcium chloride, salicylic acid) and results were compared to identify the best priming treatments. Changes in physiological ( per cent germination, total seedling length, total seedling dry weight, seedling vigour index I and II). In cucumber seed priming improved seed germination and vigour significantly over unprimed. The response of low vigour (aged) seeds to seed priming was much higher when compared to high vigour (unaged) seeds. In cucumber, among various priming chemicals tested, seed priming with KH2PO4 10-3M, K2HPO410-3M, KNO3 0.5% were found best as there was 8, 8 and 8 % more germination in high vigour seeds and 15, 15 & 10 % higher germination in low vigour seeds over unprimed (control).Priming with these chemicals also showed better germination per cent in both high and low vigour seeds, over hydropriming, in both the crops. Besides germination, marked increase in vigour as evident from seedling vigour index I and II was noticed due to seed priming in both the crops when compared to unprimed. In cucumber, there was 56 and 53 % higher SVI in less vigour seeds due to priming with KH2PO4 10-3M and K2HPO410-3M,respectively,compared to unprimed, with respect to SVII, the values were 73 and 62 % more due to priming with KH2PO4 10-3M and K2HPO410-3M, respectively, compared to unprimed in cucumber. Priming with chemicals appears beneficial as there was high per cent vigour when compared to priming with water (hydropriming). In cucumber, priming with KH2PO4 10-3M increased SVI by 39 and 36.7 % and SVII by 35 and 26.6 % over hydropriming.
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Claims 15
Claim · model-written summary
Seed priming improved germination and vigour of cucumber seeds significantly compared with unprimed seeds.
- Taxon
- Cucumber
Cucumis sativust0 - Treatment
- seed priminge0
- Outcome
- seed germination and vigoure0
- Direction
- improvede0
- Comparator
- unprimede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In cucumber seed priming improved seed germination and vigour significantly over unprimed”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Low vigour (aged) cucumber seeds responded much more to seed priming than high vigour (unaged) seeds.
- Taxon
- CucumberCucumis sativust0
- Treatment
- seed priminge0
- Outcome
- responsee0
- Direction
- much highere0
- Comparator
- high vigour (unaged) seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response of low vigour (aged) seeds to seed priming was much higher when compared to high vigour (unaged) seeds”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Priming with KH2PO4 10-3M gave 8% more germination than unprimed control in high vigour seeds.
- Taxon
- CucumberCucumis sativust0
- Treatment
- KH2PO4 10-3Me0
- Outcome
- germinatione0
- Direction
- moree0
- Value
- 8 %e0
- Qualifier
- high vigour seedse0
- Comparator
- unprimede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KH2PO4 10-3M, K2HPO410-3M, KNO3 0.5% were found best as there was 8, 8 and 8 % more germination in high vigour seeds and 15, 15 & 10 % higher germination in low vigour seeds over unprimed (control)”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Priming with K2HPO4 10-3M gave 8% more germination than unprimed control in high vigour seeds.
- Taxon
- CucumberCucumis sativust0
- Treatment
- K2HPO410-3Me0
- Outcome
- germinatione0
- Direction
- moree0
- Value
- 8 %e0
- Qualifier
- high vigour seedse0
- Comparator
- unprimede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KH2PO4 10-3M, K2HPO410-3M, KNO3 0.5% were found best as there was 8, 8 and 8 % more germination in high vigour seeds and 15, 15 & 10 % higher germination in low vigour seeds over unprimed (control)”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Priming with KNO3 0.5% gave 8% more germination than unprimed control in high vigour seeds.
- Taxon
- CucumberCucumis sativust0
- Treatment
- KNO3 0.5%e0
- Outcome
- germinatione0
- Direction
- moree0
- Value
- 8 %e0
- Qualifier
- high vigour seedse0
- Comparator
- unprimede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KH2PO4 10-3M, K2HPO410-3M, KNO3 0.5% were found best as there was 8, 8 and 8 % more germination in high vigour seeds and 15, 15 & 10 % higher germination in low vigour seeds over unprimed (control)”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Priming with KH2PO4 10-3M gave 15% higher germination than unprimed control in low vigour seeds.
- Taxon
- CucumberCucumis sativust0
- Treatment
- KH2PO4 10-3Me0
- Outcome
- germinatione0
- Direction
- highere0
- Value
- 15e0
- Qualifier
- low vigour seedse0
- Comparator
- unprimede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KH2PO4 10-3M, K2HPO410-3M, KNO3 0.5% were found best as there was 8, 8 and 8 % more germination in high vigour seeds and 15, 15 & 10 % higher germination in low vigour seeds over unprimed (control)”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Priming with K2HPO4 10-3M gave 15% higher germination than unprimed control in low vigour seeds.
- Taxon
- CucumberCucumis sativust0
- Treatment
- K2HPO410-3Me0
- Outcome
- germinatione0
- Direction
- highere0
- Value
- 15e0
- Qualifier
- low vigour seedse0
- Comparator
- unprimede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KH2PO4 10-3M, K2HPO410-3M, KNO3 0.5% were found best as there was 8, 8 and 8 % more germination in high vigour seeds and 15, 15 & 10 % higher germination in low vigour seeds over unprimed (control)”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Priming with KNO3 0.5% gave 10% higher germination than unprimed control in low vigour seeds.
- Taxon
- CucumberCucumis sativust0
- Treatment
- KNO3 0.5%e0
- Outcome
- germinatione0
- Direction
- highere0
- Value
- 10 %e0
- Qualifier
- low vigour seedse0
- Comparator
- unprimede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“KH2PO4 10-3M, K2HPO410-3M, KNO3 0.5% were found best as there was 8, 8 and 8 % more germination in high vigour seeds and 15, 15 & 10 % higher germination in low vigour seeds over unprimed (control)”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Priming with KH2PO4 10-3M gave 56% higher seedling vigour index I (SVI) than unprimed in low vigour cucumber seeds.
- Taxon
- CucumberCucumis sativust0
- Treatment
- KH2PO4 10-3Me0
- Outcome
- SVIe0
- Direction
- highere0
- Value
- 56e0
- Qualifier
- less vigour seedse0
- Comparator
- unprimede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In cucumber, there was 56 and 53 % higher SVI in less vigour seeds due to priming with KH2PO4 10-3M and K2HPO410-3M,respectively,compared to unprimed”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Priming with K2HPO4 10-3M gave 53% higher SVI than unprimed in low vigour cucumber seeds.
- Taxon
- CucumberCucumis sativust0
- Treatment
- K2HPO410-3Me0
- Outcome
- SVIe0
- Direction
- highere0
- Value
- 53 %e0
- Qualifier
- less vigour seedse0
- Comparator
- unprimede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In cucumber, there was 56 and 53 % higher SVI in less vigour seeds due to priming with KH2PO4 10-3M and K2HPO410-3M,respectively,compared to unprimed”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Priming with KH2PO4 10-3M gave 73% more seedling vigour index II (SVII) than unprimed in cucumber.
- Taxon
- CucumberCucumis sativust0
- Treatment
- KH2PO4 10-3Me0
- Outcome
- SVIIe0
- Direction
- moree0
- Value
- 73e0
- Comparator
- unprimede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with respect to SVII, the values were 73 and 62 % more due to priming with KH2PO4 10-3M and K2HPO410-3M, respectively, compared to unprimed in cucumber”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Priming with K2HPO4 10-3M gave 62% more SVII than unprimed in cucumber.
- Taxon
- CucumberCucumis sativust0
- Treatment
- K2HPO410-3Me0
- Outcome
- SVIIe0
- Direction
- moree0
- Value
- 62 %e0
- Comparator
- unprimede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with respect to SVII, the values were 73 and 62 % more due to priming with KH2PO4 10-3M and K2HPO410-3M, respectively, compared to unprimed in cucumber”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Priming with KH2PO4 10-3M increased SVI by 39 and 36.7% over hydropriming in cucumber.
- Taxon
- CucumberCucumis sativust0
- Treatment
- priming with KH2PO4 10-3Me0
- Outcome
- SVIe0
- Direction
- increasede0
- Value
- 39 and 36.7 %e0
- Comparator
- hydropriminge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In cucumber, priming with KH2PO4 10-3M increased SVI by 39 and 36.7 % and SVII by 35 and 26.6 % over hydropriming”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Priming with KH2PO4 10-3M increased SVII by 35 and 26.6% over hydropriming in cucumber.
- Taxon
- CucumberCucumis sativust0
- Treatment
- priming with KH2PO4 10-3Me0
- Outcome
- SVIIe0
- Direction
- increasede0
- Value
- 35 and 26.6 %e0
- Comparator
- hydropriminge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In cucumber, priming with KH2PO4 10-3M increased SVI by 39 and 36.7 % and SVII by 35 and 26.6 % over hydropriming”
t0“Aged Seeds of Cucumber”
Claim · model-written summary
Priming with the best chemicals gave better germination percent than hydropriming in both high and low vigour seeds.
- Taxon
- CucumberCucumis sativust0
- Treatment
- Priming with these chemicalse0
- Outcome
- germination per cente0
- Direction
- bettere0
- Comparator
- hydropriminge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Priming with these chemicals also showed better germination per cent in both high and low vigour seeds, over hydropriming”
t0“Aged Seeds of Cucumber”
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