Effect of Coba lt Ion ( Co2+ ) on Senescence of Cut L ycoris au rea

YANG Xu; TAN Zi-feng; YANG Zhi-ling; FENG Gang-li

Systematic experiments concerningmorphological and physiological changes associated with senescence of cut Lycoris aurea were conducted. The results indicated thatwhen the concentration of CoCl2 was 40 or 80 mg L-1 , it could considerably extended the longevity of cut L. aurea, increasing vase life from 5 days ( under control) to 9 days and imp rovingthe quality of flowers effectively. Itwas concluded that this p reservative with 40 mg·L-1 could retard water stress, imp rovewater balance and delay senescence p rocess of cut L. aurea. CoCl2 not only slowed the rate of p rotein decomposition but also decreased inMDA content and increased peroxidase content. Moreover, the results also showed a good effect of CoCl2with 80 mg L-1 on cut L. aurea. So there was a great foreground for p reservation of cut L. aurea.

1. Research Institute of Subtrop ical Forestry, CAF, Fuyang 311400, Zhejiang, China

2. College of Resources and Environment of Central-South Forestry University, Changsha 410004, Hu’nan, China

Received Date: 2005-11-17

Abstract: Systematic experiments concerningmorphological and physiological changes associated with senescence of cut Lycoris aurea were conducted. The results indicated thatwhen the concentration of CoCl2 was 40 or 80 mg L-1 , it could considerably extended the longevity of cut L. aurea, increasing vase life from 5 days ( under control) to 9 days and imp rovingthe quality of flowers effectively. Itwas concluded that this p reservative with 40 mg·L-1 could retard water stress, imp rovewater balance and delay senescence p rocess of cut L. aurea. CoCl2 not only slowed the rate of p rotein decomposition but also decreased inMDA content and increased peroxidase content. Moreover, the results also showed a good effect of CoCl2with 80 mg L-1 on cut L. aurea. So there was a great foreground for p reservation of cut L. aurea.

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Reference (16)

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Effect of Coba lt Ion ( Co2+ ) on Senescence of Cut L ycoris au rea

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References

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