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21 9 R 3,. ; i(-+# / J.S v, 1996, ( 5): 18- 21.8 f,3,. ; i( 8 # 8 = ss J. j, 2003, 19( 1): 172-176.9 , 4, ,. ; iHq/I N-? p J.l u j, 2004, 22( 1): 62- 65.10 2, , 2,. iI N1 3?+ J. jv, 2003, 22( 4): 395-398.11 ,1 +,;,. i(5 ? %“d J. v(1 S) , 2004, 25( 1): 5- 8.12 ,l,zt,. 2ZC i(1- E J. 3 , 2004, 28( 1): 59-65.13 , . iI N 3? 9 E“d J.S 3 j, 2004, 11( 2): 84- 88.Growth and development properties of cucumber under moderngreenhouse cultivationChen Chunhong , Xiang Bangyin( 1. Instituteof Environmental Sciences, Shanghai Academyof Agricultural Sciences,Shanghai KeyLabof Protected Horticultural Technology, Shanghai 201106, China;2.Demonstration Station, Shanghai Dushi Green Engineering Co. ,Ltd. , Shanghai 201106, China)Abstract: The g row th a nd dev elopm ent ( including the pho tosynthesis of the leaf, the develo pment of differento rgans, the accumulation a nd distribution of the dry matter, a nd the yield production) of cucumber under m oder ng reenhouse were studied. It was fo und tha t, allocated with modern environment co ntrol facilities. Theg reenhouse can prov ide the best circum stances fo r the g row th a nd dev elo pment o f the cro p. The pho to sy nthesisra te of the leaf increased with the increase of radia tion until it reach ed 1500mol m- 2 s- 1. The pho to sy nthesisra te o f the leaf increased with the development of the single leaf and decreased with the aging of the leaf. Underm odern g reenhouse cultiv ation, the dev elopment of th e cucumber o rg ans is very fa st, the av erage g row th ra te ofthe stem reached 8 cm /d, to gro w to a full leaf o nly need 10 day s, from flo w ering to harv est need 12 day s. Thedry matter accum ula tion o f the cucumber assumes a S curv e. In the distributio n of the dry m atter, the pro po rtio no f the root is less than 5% , the propor tion o f the stem maintained 10% 15% , the pro po rtio n of the leav esreached 70% 80% in the v eg etativ e g ro w th stage, a nd it decreased w ith the gro w th o f the fruits to 20% a t theend, after enter the productiv e stag e, the pro po rtion of the fruits increased g radually and it reached approximately70% in the end. The yield o f the cucumber under g reenhouse cultiv atio n is rather stable. The total yield of 8harvest w eek reached 12 kg /m2.Key words: modern g reenhouse; cucumber; g row th and dev elo pm ent193 9 =:v i( 3?+
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