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1 Guihaia 25 ( 3) : , (, ) :,,,,, m,,, ;,, ; 1 2,, , 1 2 ;,, ; : ; ; : Q : A : (2005) Study on anatomical structure of leaf of Aquil a ria a gallocha TAN G Wei2ping, C H EN Shu2si ( Department of B iology, Hanshan Teachers College, Chaozhou , China ) Abstract : The leaf anatomical struct ure of A quil ari a agallocha Roxb. was st udied by using wax2slides and p hoto2microscopy. The result s indicates t hat the leaf is typical bifacial and has characteristics of xeric in t he morphology and t he anatomy. Each epidermis consist s of a row of irregular epidermic cells which arrange closely,and the horny layer are thick. The horny layers of upper epidermis is m thicker than that of lower epidermis. The sunken stoma only exist s in lower epidermis covered by sparse unicellular epidermal hair,and t heir type is irregular. The mesophyll is very rich. There are many quadrate crystalloids which are perpendicular to the upper epidermis. The palisade tissue is composed of 1 2 layers of cylindrical cells,the outer one of which has translated into idioblast s. The 1 2 layers of hypodermis which consist s of idioblast s adjoins to the lower epidermis. The ratio of the palisade tissue to the spongy parenchyma is The mid2 rib t hat is bicollateral bundle is very rich. The bundle sheat h consist s of idioblast s. There are medullary phlo2 em bundles in midrib. The extraxylary fibres are very rich inside t he leaf. The above characteristics of t he plant shows that it is adapt s to the environment in which they live. Key words : A quilaria agallocha ; leaf ; anatomical structure ( A quilaria agallocha Roxb. ),,,, (,1989),,, ( A qui2 laria sinensis (Lour. ) Gilg) (,, 3 : : : ( Z02061) : (19642),,,,

2 ) (,2003) (,1999 ;,2004), (,2004),,, 1,, FAA,, m,,,, (,1996) OL YMPU S CH30, ( Nikon Coolpix 4500, XSZ27 G2D ) Adobe Photoshop 7. 0, Ep son Stylus Color 580, 2, ,,,, ( :1 2),, ( :3) , m,, 1, m ( : ) ;,, 1, m ( :8 11), m m ( :12), ( :6) 2. 2, ( :8 10) 1 2, m,,,,, ( : ),, m ( : ) 1 2, ( :8 11),,, ( : 8) ( :8 10) 2. 3,, ( :4 7) ( :4 7),, ( :4 7),,, ( :5 6 9) 1 2 ( :4 6 9), 1 2 ( :4 15) ( :4), ( :13) 3,, (,1982), (,1976),,,,,

3 3 : 231,, m,, 3 5,,,,,,, 1 2, , 1,,,, (1) (,2002), m,,,, (2) (,2002), (Met2 calfe,1980) (,1995 ;,1995 ;,1998), : ( I :4 7) ; ( I :8,11) ;,, ( I : ) ( Met2 calfe,1980),,, ;,,,,,,,,,, (3) ( ) (,2001) ( :5 6 9) ( :10),, (4) ( :8), ;,,,, ;, ; (,2002 ;,1997) (5), ( : 4 7), ( S ali x psam mop hil a) ( Cy nanchun hancocki a2 num) (,1997),! : E G( ), ( ) ( ) [ M ]. :,

4 K( ), ( ) ( ) [ M ]. :, [ M ]. :, [ M ]. :, [ M ]. :, 307. Chen SS( ), Tang WP ( ) The exploita2 tion and utilization of A quilaria sinensis ( Lour. ) Gilg re2 sources( ) [J ]. J H anshan Teachers College ( ), 24 (3) : Chen SS ( ), Tang WP ( ) Observe and study of vessel elements of secondary xylem in A quilaria agallocha ( ) [J ]. J Cen2 t ral China N ormal Univ ( N at S ci) (. ), 38 (4) : Fan J P ( ), Wu XM ( ), Li YZ( ), et al A study on the anatomical characteristics of leaf laminea of 5 species of S ali x growing in Qinghai Plateau ( ) [J ]. J Qing hai N ormal Univ ( N at S ci ) ( ) ( ), 2 : He ML ( ), Qi SY( ), Hu LJ ( ), et al Tissue culture and rapid propagation of A quilaria agallocha ( ) [J ]. Plant Physiol Commun ( ), 40 (2) : 209. Metcalfe CR, Chalk L Anatomy of the dicotyledons (Vol. ) [ M ]. 2nd ed. London : Clarendon Press? Oxford, Qi R H ( ), Li YZ ( ), Fan J P ( ), et al The idioblasts their ecological significance in leaves of 16 alpine plants(16 ) [J ]. A cta B oreal2occi dent S in ( ), 18 (2) : Wu XM ( ), Fan J P ( ), Li YZ( ), et al A morphological and anatomical study on eihgt species of S ali x growing in Animaqing Mountain of Qinghai2tibetan Plateau ( ) [J ]. A cta B oreal2occi dent S in ( ), 15 (6) : Yang J S( ) Review of the chemical constituents i2 solated from Chen2Xiang ( ) [J ]. N at ural p rod uct research and development ( ), 10 (1) : Zhang XR ( ),Wu H ( ), Hu ZH ( ) Re2 lationship between morphology and structure of leaves of the main sand2fixed plants in Mao US desert and environment ( 10 ) [J ]. A cta B oreal2occi dent S in ( ), 17 (5) : Zhou ZB ( ), Li PJ ( ) A review on the p hytotomy research of xerophytes in China ( ) [J ]. A ri d Zone Research ( ), 19 (1) : ,, 40 ; 2.,, 40 ; 3.,, 160 ; 4., 80 ; 5. ( ),, 480 ; 6. ( ),, 320 ; 7. ( ),, 440 ; 8.,, 440 ; 9. ( ),, 480 ; 10. ( ), ( ), 320 ; 11. ( ),, ; 12., 850 ; 13. ( ),, ; 14. ( ),, 1750 ; 15. ( ),, 320 Explanation of Plates 1. Upper epidermis,showing irregular epidermic cells, 40 ; 2. Lower epidermis,showing epidermal hair, 40 ; 3. Lower epidermis, showing irregular epidermic cells and stomas, 160 ; 4. Cross section of midrib, 80 ; 5. A part of cross section of midrib,showing xylem,phloem and extraxylary fibres, 480 ; 6. A part of cross section of midrib,showing from lower epidermis to xylem, 320 ; 7. A part of cross section of midrib, showing idioblasts and endogenetic p hloem, 440 ; 8. Cross section of leaf, showing quadrate crystalloids,palisade parenchyma and spongy parenchyma, 440 ; 9. Lower epidermis,showing epidermal hair, 480 ; 10. A part of cross section of leaf,showing upper epidermis,palisade parenchyma (idioblasts),fibres and spongy parenchyma, 320 ; 11. A part of cross section of leaf,showing lower epidermis and idioblasts of hypodermis, 1750 ; 12. The sunken stoma, 850 ; 13. Cross section of midrib,showing the pit in the end of wall of vessel element, 2560 ; 14. A part of cross section of leaf,showing upper epidermis, idioblasts and palisade parenchyma, 1750 ; 15. Cross section of midrib,showing upper epidermis and idioblasts, 320.

1 GIS 95 Y = F y + (1 F) (1) 0 0 Y0 kg/hm 2 /day F y 0 y c kg/hm 2 /day [12] y m 20 kg/hm 2 /hour Y = cl cn ch G [ F( y ) T m yo + (2) (1 F)(

1 GIS 95 Y = F y + (1 F) (1) 0 0 Y0 kg/hm 2 /day F y 0 y c kg/hm 2 /day [12] y m 20 kg/hm 2 /hour Y = cl cn ch G [ F( y ) T m yo + (2) (1 F)( 24 1 Vol.24 No.1 94 2008 1 Transactions of the CSAE Jan. 2008 2008 1 100094 2 100035 3 100081 4 100081 5 100101 GIS ( ) 65.12 16.82 13.74 15.27 11.07 t/(hm 2 a) 10.93% 41.43% 46.93% 65.4%. Bi Jiye, Zhu