Study on Techniques and Physiological Indexes ofWalnutGrafting w ith Young Seedling

ZHOU Hua; DONG Feng-xiang; CAO Yan-sheng; XU Ying-chun

The integrated exper iment of young w alnut seed ling g raft ing w as carried out in greenhouse to study thetechniques and change of physiolog ical indexes on graft ing uniting process o f walnu.t The result show ed that thetreatm ents of 2 000mg L-1GA3 and p inching enhanced ev ident ly the diameter o f stem of the seedling, the g raftingsurv iva l rate w as above 80% w ith temperature at 26 andmed ia moisture at 410 g?? kg-1 in box with holes. Theyoung seedling had the higher hormones content of IAA, GA3, ZR and IAA /ABA value dur ing the leaves expanded 1~ 10. The physio log ical indexes of stock changed w ith t ime in the process of healing , the content of solub le sugar,pro tein and IAA /ABA value went down at earlier stage, went up in them idd le, then w en t dow n aga in at la te stage,the PPO activ ity had a tendency of opposite, the content of IAA, GA3, ZR dec lined at earlier stage, then went up afterw ards, ABA content rose stead ily in the whole process.

1. Research In stitu te of Forestry, CAF

2. Key Laboratory ofT ree Breed ing and Cu ltivat ion, S tate ForestryA dm in is tration, Beijing?? 100091, China

3. College ofHort icu ltu re, Nanjing Agricu ltu ralUn ivers ity, Nanjing?? 210095, Jiangsu, China

4. Key Laboratory ofT ree Breed ing and Cu ltivat ion, S tate ForestryA dm in is tration, Be ijing?? 100091, China

Received Date: 2005-03-09

Accepted Date: 2006-10-08

Abstract: The integrated exper iment of young w alnut seed ling g raft ing w as carried out in greenhouse to study thetechniques and change of physiolog ical indexes on graft ing uniting process o f walnu.t The result show ed that thetreatm ents of 2 000mg L-1GA3 and p inching enhanced ev ident ly the diameter o f stem of the seedling, the g raftingsurv iva l rate w as above 80% w ith temperature at 26 andmed ia moisture at 410 g?? kg-1 in box with holes. Theyoung seedling had the higher hormones content of IAA, GA3, ZR and IAA /ABA value dur ing the leaves expanded 1~ 10. The physio log ical indexes of stock changed w ith t ime in the process of healing , the content of solub le sugar,pro tein and IAA /ABA value went down at earlier stage, went up in them idd le, then w en t dow n aga in at la te stage,the PPO activ ity had a tendency of opposite, the content of IAA, GA3, ZR dec lined at earlier stage, then went up afterw ards, ABA content rose stead ily in the whole process.

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Reference (15)

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Study on Techniques and Physiological Indexes ofWalnutGrafting w ith Young Seedling

Abstract

References

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通讯作者: 陈斌, bchen63@163.com

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