Matriconditioning of Vegetable Seeds to Improve Stand Establishment in Early Field Plantings

Khan, Anwar A.; Maguire, J. D.; Abawi, G. S.; Ilyas, Satriyas

doi:10.21273/jashs.117.1.41

Cited by 66 publications

(33 citation statements)

References 20 publications

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“…Matriconditioning procedure has been described in detail elsewhere (Khan et al, 1992). It consists of mixing the seed with water and Micro-Cel E, a synthetic calcium silicate, with high water holding capacity.…”

Section: Materials and Methods Seeds M Atriconditioningmentioning

confidence: 99%

“…; table beet, 1:0,2: 1•15 (7 d conditioning at 15°C, 1fr = -0,5 MPa); sugar beet, 1: O•25: 0•63 (7 d conditioning at 15°C, 1fr = -1-4 MPa); tomato and pepper, 1: 0•3: 1•38 (7 d conditioning at 15°C, 1fr = -1,0 MPa) and 1: 0•3: 1 (4 d conditioning at 25°C, 1fr = -1,2 MPa); watermelon, 1:0,25: 1 (4 d conditioning at 25°C, 1fr = -1,0 MPa); lettuce, 1: 0•25: 1•5 (1 d conditioning at 15°C, 1fr = -0,7 MPa). Carrier 1fr potential (= matric potential) was estimated by first determining the water content of Micro-Cel E at equilibrium with the seed at the end of conditioning and then relating the water conte nt to the matric potential (Khan et al, 1992). Carrot, tomato and pepper seeds were dried by forced air at 25°C for 2 h without removing Micro-Cel E, the loose carrier that came off the seeds was removed by sieving.…”

Section: Materials and Methods Seeds M Atriconditioningmentioning

confidence: 99%

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Integrating low water potential seed hydration with other treatments to improve cold tolerance

1995

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Matriconditioning improved the performance of pepper, tomato, sweet corn, snap bean, table beet, sugar beet and watermelon seeds in early field plantings at suboptimal temperatures (averaged over 10 d after planting) ranging from 12 to 18 °C. Reduction in the time to 50% (T(50)) emergence in conditioned seeds ranged from 0·6 d in watermelon to 3·3 d in pepper and improvement in emergence from 10% in sugar beet to 30% in table beet. Further improvement in emergence occurred by inclusion of pesticides and/or gibberellin during conditioning. A 4 d conditioning of pepper at 25 °C was superior to 7 d conditioning at 15 °C in seeds germinated at 15 °C on filter paper, but 15 °C conditioning was superior in improving percentage emergence in early field plantings. Tomato seeds conditioned at 15 or 25 °C performed equally well in the field. A 2 d conditioning was superior to 1 d conditioning in improving the performance of supersweet sweet corn cultivars grown in a growth chamber at 10/20 °C. The water uptake rate in the presence of Micro-Cel E during matriconditioning of sweet corn seeds was slower than when the seeds were exposed to the same amount of water in absence of the carrier. Electrolyte leakage was greater in supersweet 'Challenger' sweet corn seeds carrying the sh(2) gene compared to the sugary type sweet corn 'More', and in both cases matriconditioning reduced the leakage. Lettuce seeds matriconditioned for 24 h had higher 1-aminocyclopropane-l-carboxylic acid (ACC) content, developed greater ACC oxidase activity and performed better at 10 °C (germinated earlier and had higher percentage germination) than the untreated seeds. Matriconditioning appears to bring about beneficial physical, physiological and biochemical changes that seemingly improve embryo growth potential and tolerance to low temperatures.

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Section: Materials and Methods Seeds M Atriconditioningmentioning

confidence: 99%

Section: Materials and Methods Seeds M Atriconditioningmentioning

confidence: 99%

Integrating low water potential seed hydration with other treatments to improve cold tolerance

1995

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“…water at the weight ratio of 16: 4.8:13 and then incubated for 7 days at 15 °C in closed boxes (Khan et al 1992). …”

Section: Methodsmentioning

confidence: 99%

Improving germination and vigour of aged and stored onion seeds by matriconditioning

Szafirowska¹,

Grzesik

Habdas³

et al. 2002

Acta Physiol Plant

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Germination and vigour of accelerated aged (AA) and naturally stored onion seeds were examined. Accelerated ageing was conducted at 40 °C and 100 % relative humidity (RH). Non aged seeds were stored for 34 months at 3 or 15 °C and 40, 60 or 90 % RH. To restore seed viability, stored and aged seeds were matriconditioned with Micro-Cel E. A distinct loss of germination was observed after 5 days of accelerated ageing. Naturally stored seeds maintained high viability for 34 months, when stored at 3 °C and 40, 60 and 90 % RH or at 15 °C and 40 %. An increase of RH to 60 and 90 % at 15 °C caused loss of germination and vigour. Matriconditioning Improved germination and increased endogenic ethylene release and in vivo ACC oxidase activity of both aged and stored seeds.

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“…The microbiological infestation of many vegetable seeds was found to rise after their presowing priming. The fungicide application showed different results both with respect to initial plant growth and yield (Khan et al, 1992;Szafirowska and Khan, 1995;Tylkowska and Biniek, 1996).…”

Section: Introductionmentioning

confidence: 99%

Influence of Presowing Conditioning and Fungicide Application on the Seed and Seedling Vigour and Yield of Coriander (Coriandrum Sativum L.) Seeds

Capecka¹,

Dabrowska²,

Suchorska-Tropilo³

et al. 2003

Acta Hortic.

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Coriander seeds were matriconditioned with MicroCel-E and osmoconditioned in PEG solution and then treated or not treated with fungicide. The microbiological infestation of conditioned and control seeds were on a similar level. Both tested conditioning methods increased significantly the seed and seedling vigour, whereas fungicide application had no effect. The only significant differences between matriconditioning and osmoconditioning were found in leaf DNA content. The advantageous effect of presowing conditioning was proved also with respect to coriander seed yield, oil content, and oil yield. Depending on the location of field experiments, the coriander crop from osmoconditioned and matriconditioned seeds responded in a different pattern of yielding. The same concerned the fungicide application. The tested methods of presowing treatments did not change the quality and quantity composition of coriander oil significantly.

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Matriconditioning of Vegetable Seeds to Improve Stand Establishment in Early Field Plantings

Cited by 66 publications

References 20 publications

Integrating low water potential seed hydration with other treatments to improve cold tolerance

Integrating low water potential seed hydration with other treatments to improve cold tolerance

Improving germination and vigour of aged and stored onion seeds by matriconditioning

Influence of Presowing Conditioning and Fungicide Application on the Seed and Seedling Vigour and Yield of Coriander (Coriandrum Sativum L.) Seeds

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