In this paper, germination trials of seeds from nine geographic provenances of Betula alnoides in Yunnan and Guangxi were conducted under four temperature conditions, including 15℃, 20℃, 25℃, 30℃, so as to reveal the effects of temperature on its seed germination.

In order to settle the introduction problem and know heredity foundation and the range of ecological adaptation, the traits on phenotypic, qualities of shoot and DNA genetic marker were analyzed in all resource, geographic provenance that distributed in th.

Determination of aesculin and aesculetin in periderm and leaves of Cortex Fraxini among different provenances;

Study on Law of Flower and Cone of Fokienia hodginsii Provenance;

The contents of chlorogenic acid and total flavonoids of Eucommia ulmoides Oliv. leaves among provenances;

The preliminary report on seed character and seedlings growth of Jatropha curcas geographical provenances;

① The diversity of resistance to pine wood nematode caused by masson pines of different ages;② The diversity of resistance to pine wood nematode of masson pine of various geographical provenances;③ The studies of the resistance.

Based on the analyses of the mineral nutrients from chinese fir geographical provenance,the variant regularities of the mineral nutrients the elements such as N,K,P,Na,Fe-from the geographical provenance were studied in the paper.

Comprehensive evaluation and selection of geographical provenances of Dendrocalamus latiflorus in Fujian;

The studying of seeds morphological differentiation among populations of Gordonia acuminata from different geographical provenances and successiving communities;

Principal component analysis(PCA), Principal factor analysis(PFA), Clustering analysis(CA), and WPGMA, the authors also studied the morphological differentiation of seeds among individuals of Gordonia acuminata from different geographical provenances and successiving communities.