Study on Variations of Young Forest Growing Traits of Choerospondiasax illaris Geographic Provenances

HE Gui-ping; CHEN Yi-tai; YU Yuan-hua; JIN Qi-xiang

The affforestation provenance trial o fChoerospondias ax illaris containing 25 seedlots co llected from 8 provinces ( zone) w as conducted in Shaow u, Fu jian Prov ince. The results show ed that for 4 years o ld young stand, therew ere sign if icant differences in 4 traits: tree heigh,t breast he ight diamater, divarication height and d ivaricat ion nunber, and the broad heritability o f tree he ight and breast he ight d iamaterw ere high. Therew ere significan t differencesin tree heigh,t breast he ight d iam ater and d ivaricat ion height under d ifferen t site. The tree heigh,t breast height diamater and divarication height show ed significan t negat ive re lation to latitude of the seedlots, w hile they show ed nosignifican t negative relat ion to long itude o f the seedlots, the divaricat ion number show ed no significan t re lation to latitude and long itude of the seedlots and tree he igh,t breast height d iam ater, d ivaricat ion heigh.t Four qu ick-grow ingprovenances w ere se lected among young fo res,t .i e. Hezhou, Rongx ian in Guangx ,i Shangyou in Jiangx,i Lechang inGuangdong. Tw o provenance zonew ere districted as system cluster: qu ick-grow ing provenance zone fo rm iddle southsubtropica l and slow-grow ing provenance zone form idd le north-subtrop ica.l

1. Research Ins titu te of Subtropical Forestry, CAF, Fuyang?? 311400, Zhej iang, China

2. Foresty Bureau of Shaowu C ity, Fu jian Prov ince, Shaowu?? 35400, Fu jian, China

Received Date: 2005-12-23

Abstract: The affforestation provenance trial o fChoerospondias ax illaris containing 25 seedlots co llected from 8 provinces ( zone) w as conducted in Shaow u, Fu jian Prov ince. The results show ed that for 4 years o ld young stand, therew ere sign if icant differences in 4 traits: tree heigh,t breast he ight diamater, divarication height and d ivaricat ion nunber, and the broad heritability o f tree he ight and breast he ight d iamaterw ere high. Therew ere significan t differencesin tree heigh,t breast he ight d iam ater and d ivaricat ion height under d ifferen t site. The tree heigh,t breast height diamater and divarication height show ed significan t negat ive re lation to latitude of the seedlots, w hile they show ed nosignifican t negative relat ion to long itude o f the seedlots, the divaricat ion number show ed no significan t re lation to latitude and long itude of the seedlots and tree he igh,t breast height d iam ater, d ivaricat ion heigh.t Four qu ick-grow ingprovenances w ere se lected among young fo res,t .i e. Hezhou, Rongx ian in Guangx ,i Shangyou in Jiangx,i Lechang inGuangdong. Tw o provenance zonew ere districted as system cluster: qu ick-grow ing provenance zone fo rm iddle southsubtropica l and slow-grow ing provenance zone form idd le north-subtrop ica.l

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Reference (13)

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Study on Variations of Young Forest Growing Traits of Choerospondiasax illaris Geographic Provenances

Abstract

References

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通讯作者: 陈斌, bchen63@163.com

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