不同种源翅荚木的抗寒性

doi:10.11707/j.1001-7488.20070404

Scientia Silvae Sinicae ›› 2007, Vol. 43 ›› Issue (04): 24-30.doi: 10.11707/j.1001-7488.20070404

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Cold Resistance of Zenia insignis from Different Provenances

He Xiaoyong^1,2,Liu Xinhong³,Yuan Deyi¹,Tan Xiaofeng¹,Zhao Sidong¹,Zhang Lin¹,Wei Lai¹

1. Key Lab of Non-Wood Forest Product of State Forestry Administration Central South University of Forestry and Technology Changsha 410004; 2.Lishui Popular Science Station of Zhejiang Lishui323000; 3. Zhejing Forestry Academy Hangzhou 310023

Received:2007-01-09 Revised:1900-01-01 Online:2007-04-25 Published:2007-04-25

Abstract

Abstract:

Five provenances of Zenia insignis were used as materials to observe their leaf structural features by epidermal and paraffin slice methods, measure leaf semi-lethal temperature by electric conductivity, and measure leaf supercool point temperature by differential scanning calorimetry. The cold resistance of Z. insignis from different provenances and the correlation between the clod resistance and leaf structural features were analyzed together with field survey. Provenance from Tongdao, Hunan showed the strongest cold resistance. Its cold injury percentage in Zhuzhou, Hunan and Lishui, Zhejiang was zero and 4.83%, respectively, which were significantly lower than that of the other provenances. Its leaf semi-lethal temperature and supercool point temperature were -5.34 ℃ and -15.04 ℃, respectively, which were lower than those of the provenances from Wengyuan, Guangdong and Xincheng, Guangxi. In addition, cell tense ratio (CTR) and spongy ratio (SR) of Z. insignis leaf were correlated with its cold resistance; the cold resistance ability became stronger with the increase of CTR and the decrease of SR.

Key words: Zenia insignis, provenance, cold resistance, leaf tissue structure, semi-lethal temperature, supercool point temperature

He Xiaoyong;Liu Xinhong;Yuan Deyi;Tan Xiaofeng;Zhao Sidong;Zhang Lin;Wei Lai. Cold Resistance of Zenia insignis from Different Provenances[J]. Scientia Silvae Sinicae, 2007, 43(04): 24-30.

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Cold Resistance of Zenia insignis from Different Provenances

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