Anthocyanin as a kind of natural pigment and high antioxidant active substance has excellent
health efficacy．Compared with aboveground organs，anthocyanin in root tubers and tubers，etc. underground
organs has the merits of high content，high yielding，easy for storage，and being an efficient，stable and
easy to use source of anthocyanin．Underground organs of colored potato，purple sweet potato and purple
Chinese yam，etc. plants are rich in anthocyanin．The paper summarized the anthocyanin synthesis in plants，
especially in underground organs，reviewed its regulation mechanism，and prospected the research emphasis in
the future．

Low temperature stress is the main adverse factor for growth and development of vegetable
crops．It has great influence on the growth and development of vegetables and the formation of commercial
yield．This paper reviewed the genetic model，physiological adjustment and molecular mechanism of low
temperature tolerance，and prospected the research activities on low temperature tolerance in vegetable
crops．

The full genomic sequence of Cowpea mild mottle virus（CpMMV）Hainan isolate was cloned
from CpMMV infected cowpea．The full genomic sequence of CpMMV Hainan isolate is 8 193 bp（GenBank
access No.KY420906），and shared only 63.00%-83.22% homology with the other CpMMV isolates．
Phylogeny analysis showed that CpMMV Hainan isolate was located as one separate subcluster．Recombinant
analysis showed that there was one recombinant event existing at breaking points 3 212-3 592 bp．

This paper conducted pot experiment and studied the effects of corn stalks on
microenvironment，chemical and physical properties of the secondary salinized soil，and growth of tomato．
The results showed that adding corn stalks could enrich the microbial population in salinized soil．The
number of effective bacterial sequences in the soil microbial community was increased，and flora structure
became more abundant．The main effective flora were Enterobacteriaceae，Sphingomonadaceae，and
Xanthomonadaceae．Adding corn stalks could improve the aggregate structure of salinized soil，significantly
increase soil organic matter content，accelerate the release of mineral elements in soil facility，and reduce the
contents of alkali nitrogen，available potassium and available phosphorus in soil．With the treatment of adding
corn stalks，tomato plant height，stem diameter and photosynthetic index were significantly higher than that of
the contrast．And the tomato yield was also remarkably increased．

Taking pakchoi as test material，this paper studied the effect of soil Cd concentration in 2
cultivation modes including pot and pool on Cd accumulation of pakchoi．The results showed that under
these 2 cultivation modes，Cd accumulation quantity in pakchoi increased along with the increase of soil Cd
concentration．But，there existed obvious intervarietal differences．The total Cd accumulation quantities
in potted pakchoi were higher than that in pooled pakchoi．When soil Cd concentration was 1.08 mg·kg^-1，
the average Cd accumulation value of potted pakchoi was 115.08 μg·kg-1，that of pooled one was only
64.57 μg·kg^-1．

Abstract：Taking the seeds of‘Kuoyekongxincai’as test material，this paper studied the growth response
of water spinach sprouts to LED light intensity and light quality．The results showed that the shelling rate of
L₇₀₀₀RBW4∶1∶1（light intensity 7 000 lx，red light∶blue light∶white light=4∶1∶1） was significantly higher
than that of the other treatments at the end of greening stage．When light intensity was 7 000 lx，the dry weight of
edible part treated with 3 light qualities was significantly higher than that of white light control．Overillumination
would remarkably affect chlorophyll accumulation．Under high light intensity（L₁₁₀₀₀），the content of chlorophyll
a，chlorophyll b and total chlorophyll decreased with the increase of red light ratio，and the albinism of cotyledons
became more obvious．Under different light intensity，the ascorbic acid content of the 3 light quality treatments
decreased with the increase of red light ratio，but there was no significant difference in soluble sugar content
among the 3 light quality treatments．The results of principal component analysis showed that L₇₀₀₀RBW4∶1∶1 had
the best performance under the experimental conditions，and it was a suitable LED light source formulation for
industrialized production of water spinach sprouts．

Solanum sisymbriifolium is an important rootstock for tomato grafting cultivation in
Guangxi．This paper carried out seed pretreatment and germination test，and probed into the method of
breaking seed dormancy，and screening out the optimal combination of germination treatment for Solanum
sisymbriifolium seed．The results showed that low temperature and GA₃ treatment could relieve seed
dormancy．Low temperature induction for 60 days was the best treatment．200 mg·L^-1 GA₃ concentration under
varying temperature as 30 ℃ for 16 h/20 ℃ for 8 h；and 600 mg·L^-1 GA₃ concentration under 30 ℃ constant
temperature were more favorable for germination of Solanum sisymbriifolium seed．Seeds harvested by natural
fermentation are easier to germinate than that harvested directly without fermentation．

To improve the activity of fermentation liquor from endophytic Brevibacillus brevis W4 against
Botrytis cinerea，fermentation medium and conditions were optimized by single factor and orthogonal test
design．The results showed that the optimal fermentation medium components were as following peptone 2.0%，
fructose 1%，NaCl 0.25%．The optimal fermentation conditions were pH 8.0，seed age 20 hours，inoculum
size 5%，loaded liquid 50 mL，fermentation temperature 35 ℃，shaker speed 150 r·min^-1，fermentation time
24 hours．The inhibitory rate of 25 times diluent of fermentation liquor on B. cinerea was 92.8%，increasing
26.9 percentage point compared with that without optimization．The activity of fermentation filtrate from W4
strain was significantly improved by optimizing the medium and fermentation conditions．These results have
laid a foundation for further extraction and seperation of active ingredients against tomato B. cinerea．

This paper conducted experiment on controlling bitter gourd powdery mildew using Bacillus
subtilis（BLG010）．And in order to find out the pathogenic process-related substances，the paper analyzed
the differences in metabolic substances of bitter gourd leaves 8 days and 15 days after pathogen inoculation
treatment，pathogen+BLG010 inoculation treatment and distilled water spraying treatment by GC-MS
methodology．The results showed that the control effect of BLG010 on bitter gourd powdery mildew was as
high as 89.49%．After pathogen infection，the contents of D-glucose，fumaric acid and galactinol on 8 days
and 15 days were all up-regulated．While，the contents of glycine，glyceric acid，L-glutamic acid and caffeic
acid were down-regulated．Contents of these 7 metabolic substances were related to the pathogenic process of
bitter gourd powdery mildew．Application of BLG010 can decrease the disease index，and avoid the abnormal
changes in contents of these 7 metabolic substances．

‘Jingyanchunqiulyu No.2’ is a new cucumber F₁ hybrid developed by crossing inbred lines
‘10-c66’ as female parent and ‘10-c11-29’ as male parent．This F₁ hybrid can be planted both at protected
and open fields in spring and autumn．Its fruit is of rodlike shape，35-36 cm in length with brilliant green and
glossy peel．There are many medium size papillomas with white thorn on fruit peel．Its flesh is green in color
with special flavour and good quality．It is resistant to Fusarium wilt，mid-resistant to downy mildew，and
tolerant to powdery mildew．Its yield can reach 75.0-97.5 t·hm^-2 in Northern China protected fields in spring，
and 60.0-75.0 t·hm^-2 in autumn．It is suitable for cultivation in protected and open fields in North，Northeast
and Northwest China in spring and autumn．

‘DLFT 419’ is a table tomato F₁ hybrid developed by crossing inbred line ‘T0816-88’ as
female parent and inbred line‘ T0816-176’ as male parent．This variety is of infinite growth type，medium and
early maturity．The fruit is pink in color and of round shape with smooth peel，and small areola．Its flesh is
thick with good hardness．The average single fruit weight is 280 g．Its yield is about 120 t·hm^-2．The variety
has good resistance，and is tolerent to high temperature and high humidity．It is highly resistant to leaf mold，
resistant to Fusarium wilt and TYLCV，and mid-resistant to CMV and TMV．It is especially suitable for
cultivation in Gansu，Shandong，Liaoning，Hebei，Henan，etc. Provices in protected fields in early spring
and delayed autumn．

‘Donghu No.5’ is a new squash F₁ hybrid developed by crossing inbred line ‘813-1cb’as
female parent，and inbred line ‘1-2’ as male parent．It is of early maturing．It takes about 43 days from
seeding to harvesting about 250 g tender fruit．The plant has strong growth vigor and is of dwarf type．Its leaf
is dark green in color with notches．Its root system is strong and unfading at later stage．The first female flower
sets on the 6-7th node．It has many female flowers and high fruit setting ratio．The commercial fruit is of long
clavate shape with light green and glossy peel．Its resistance to virus disease is stronger than that of the contrast
‘Bibo’．It can yield about 63 t·hm^-2．‘Donghu No.5’ is suitable for cultivation in open fields of Shanxi
Province in early spring．

‘Yanbai No.2’ is a new F₁ hybrid of white peel luffa developed by crossing ‘S16’ as female
parent and ‘S18’ as male parent．The plant has strong growth vigor and is of early maturity．The first female
flower sets on the 7-11th node. It takes about 30 days from field planting to harvesting．The fruit is of cylindric
shape，19-21 cm in longitudinal diameter and 5.9-6.2 cm in transverse diameter．The single fruit weight is
about 250 g．The fruit peel is white-green and flesh is white in color．Its flesh is tender with good taste．It
can yield about 78 t·hm^-2．Its field resistances to powdery mildew，downy mildew and Phytophthora blight
are stronger than that of the contrast ‘Xinxiu’ ．It is suitable for cultivation in Hunan，Hubei and Jiangxi
Provinces．