XING Huiying, ZHANG Xinping, LI Xinxu, LI Shushan, LI Changbao, LIU Tong, CHEN Huaimeng, WANG Shaohui, SUN Lulu, YANG Rui
To compare with the imported large-fruited tomato variety‘ Yarimaru’ ，three domestic tomato varieties（‘502’‘H2106’‘H2103’）were studied．By monitoring environmental factors in the greenhouse ，the dynamic changes of agronomic traits ，yield and fruit quality of diff erent tomato varieties under long-season
cultivation in multi span greenhouse and the relationship between environmental factors were analyzed ．The
results showed that the plant height of the imported variety ‘ Yarimaru’ was 8.23 m ，the single fruit weight
ranging was 115-288 g ，the fruit hardness was 2.10 -5.20 kg · cm-2 ，the soluble solid content（SSC）was
4.03%-5.43% ，and the yield was 53.44 kg · m-2 higher than the other three varieties ；The single fruit weight o f
‘H2103 ’ was 101-274 g ，the soluble solid content was 3.46%-5.30% ，and the yield was 48.50 kg · m-2 ．The
soluble solid content of ‘ 502 ’and ‘ H2106’ were 3 .51%-5.13% and 3.05%-4.60%， and the yield was 45.26
and 44.26 kg · m-2， respectively． The average content of VC and lycopene in‘ Yarimaru’ is also higher than that
in the other three varieties．Through the comparative analysis of the annual environmental factor measurement
data ，the medium fruit tomato variety ‘ Yarimaru ’ needs lower eff ective accumulated temperature per leaf growth
than the domestic variety ，up to 19.62 ℃ · d ，and requires 857.82 μmol · m-2 · s-1 of photosynthetically active
radiation ，which indicates that the imported variety needs lower accumulated temperature and photosynthetically
active radiation per leaf growth and fruit growth per ear under the condition of relatively high yield ，reducing
energy consumption． Meanwhile， the domestic variety ‘ H2103’ also exhibits notable high-yield potential．
These results provides a scientifi c basis for tomato variety selection ，high-effi ciency breeding ，and resource
utilization in long-season cultivation within multi-span intelligent greenhouses.
