Salt tolerant cucumber variety‘Jinchun No.5’and salt sensitive variety‘Jinyou No.1’were used with

NaCl concentration as 0 and 200 mmol·L^-1,root exudates concentration as 0，30 mL per plant and 20 mL per plant to

study the effect of cucumber root exudates on soil nutrients and enzyme activities under salt stress by pot

experiment.Results showed that salt stress inhibited stem diameter,plant length,soil enzyme activities,alkali-

hydrolyzable nitrogen content,available phosphorus content and organic matter content,and significantly increased

available potassium.Under salt stress,except available potassium,low concentration of root exudates(30 mL per

plant)promoted every index in each treatment,eased salt stress to some extent;high concentration of root exudates(20

mL per plant)inhibited or significantly inhibited every index in each treatment,aggravated slat stress.

By isolated microspore culture technique from pakchoi(Brassica rapa ssp.chinensis),9 regeneration plants

including 2 haploids and 7 diploids were obtained.The spontaneously double rate of diploid was up to 77.7 %.Two

haploids and 2 diploids were selected to construct their respective DNA pool.Combining MethylationSensitive

Restriction Endonuclease-PCR method with SRAP marker technique,it gained 8 primer combinations showing polymorphism

from 768 pairs of primers.It indicated that the ploidy level of regeneration plants from pakchoi may be related to

DNA methylation in plant genomics.

This paper studied the effects of 3 pruned methods(2 stems,3 stems and 4 stems pruned method)on

photosynthetic gas exchange parameters,transpiration and distribution pattern of assimilate.The result showed that

net photosynthetic rate(Pn),stomatal conductance(Gs),stomatal limitation value(Ls),transpiration rate(Tr)and water

use efficiency(WUE)were in upper leaves>in middle leaves>in lower leaves under 3 pruned methods.In middle or lower

leaves the decrease of Pn was considered as a result of non-stomata restriction.Compared with 2 stems pruned

method,the Tr in upper or middle leaves,and WUE in lower leaves of 3 or 4 stems pruned method increased.Under 3

pruned methods,the distribution pattern of assimilate to fruits was the highest,the next was to stems and leaves,and

the distribution of assimilate to root was the lowest.Compared with 2 stems pruned method,per plant yield and weight

of single fruit of sweet pepper were significantly increased under 3 or 4 stems pruned method.

A multiple allele inherited genetic male sterile line‘00S107’was used as a source of male sterility in

pakchoi.Methods of crossing and backcrossing were applied to transfer the male sterility to a male fertile line

‘CA123’.A new genetic male sterile line‘GMS001’with 100 % of male sterile plants was obtained.‘GMS001’was

similar to‘CA123’in horticultural characters.An excellent hybridized combination‘GMS001×D3’was developed,which

is uniform and superior to‘Huawang’in yield.

In a field experiment,effects of three plant growth substances，Diethyl aminoethyl hexanoate(DTA-

6),Uniconazole(S3307)and SOD mimics(SODM)were studied on potato yield,quality and its root physiology through foliar

application at potato tuber expansion period.The results showed that compared to the control,SODM, DTA-6 and S3307

increased yield by 17.4 %,8.3 %,and 4.1 % respectively.SODM could increase the contents of starch,water-soluble

protein and sucrose.S3307 could increase the content of water-soluble protein.Three plant growth substances could

decrease the content of reduced sugar.The experiment draw the conclusion that three plant growth substances could

improve the quality,yield and activity of root metabolism,but SODM treatment had the best effect.

In the solar greenhouse,adopting eco-organic soilless cultivation model,the suitable dosage of specially

used fertilizer for eggplant was studied.The results showed that with the increase amount of this speeially used

fertilizer,the plant height,single fruit weight,yield per plant and average plot yield increased.But the production

increasing effect per unit fertilizer decreased.According to regression statistical analysis,the best fertilizer

applying quantity for eggplant was 0.098 kg·m^-2(N 19 %，P₂O₅ 6 %，K₂O 25 %),the theoretical yield was 9.10 kg·m^-2

(discount 91 t·hm^-2).The results of statistical analysis inosculated with that of the field experiments.

The antifungal effect of 1×10¹¹ cfu·g^-1 Bacillus Subtilis WP against cucumber gray mold(Botrytis

cinerea)tested by allied toxicity measurement and field efficacy trials.The result showed that Bacillus Subtilis WP

had good inhibitory effect on cucumber gray mold(Botrytis cinerea)with EC₅₀ of 5.89×10⁶ cfu·mL^-1,which

indicated that it had the same effect with control insecticides Pyrimethanil.The same result was found in field

experiment.The efficacies of 0.08 g·m^-2 Bacillus Subtilis and 0.11 g·m^-2 control insecticides were 70.81 % and

77.40 %,respectively.

‘Xinqie No.6’was released first by crossing No.4 long eggplant inbred lines bred from‘Xinjiangchangqie

’with No.26 long eggplant inbred lines bred from Soviet Russia long eggplant,then followed by systematic breeding

involved in segregational populations.‘Xinqie No.6’presents strong growth vigor.The first flower grows at the 5-6

axilae,the fruits are long and slim with shining light violet red color.The average single fruit weight is 140 g.It

has stronger resistance to verticillium wilt than‘Xinjiangchangqie’.It can yield about 67.5-82.5 t·hm^-2.It is

suitable to be cultivated under plastic shed or in open filed covered farm in early spring at Xinjiang.

‘Ganxiangli’is a new pumpkin F1 hybrid developed by crossing inbred line 03B811 and 03C417.It is early

maturity and grows vigorously.The first female flower starts from node 9-11.It takes 40 days from flowering to

harvest. The fruit is round and flat,dark green rind with green stripes,thick orange flesh,floury and sweet taste

with flavour of chestnut.Average fruit weight is about 1.5 kg.It yields 30.0-37.5 t·hm^-2.It is suitable for

cultivation in open and protected fields in spring.

‘Liannongwujin No.2’is a newly bred kidney bean variety developed by systematic selection after crossing

made in 4 parents of‘80-3 changjiangdou’,‘85-1’,‘Corrull49-242’and‘87 B’.It has the characteristics of

trailing plant with green flat-shape pod.The length of pod is 22 cm,the width is 1.5-2.0 cm and the weight per pod

is about 23.0 g.It is resistant to rust and mid-resistant to anthracnose.Its yield is about 4.6 t·hm^-2,3.3 t·hm^-

²,3.75 t·hm^-2 and 4.8 t·hm^-2,respectively in open field in spring and autumn,protected field in spring and

winter.It is suitable for cultivation in open field in spring and autumn,protected field in spring,autumn and winter

in northern China.

A new F1 hybrid variety of carrot‘Tianhong No.5’was selected by using males sterile three-line

methods.Its female parent is HLBcms005 and male parent is HLBm005.The plants grow upward and strongly.The plant high

is about 62 cm with 10 leaves.Its fleshy roots are uniform,of column shape.The average root length is 14.47 cm.The

root width is 4.06 cm and average root weight is 106.92 g.Its carotene content amounts to 70.28 mg·kg^-1(FW).The

soluble solid content is 9.11 %.Its growing period is 100-105 days.The average yield is 48 t·hm^-2.There are 420

000-450 000 plants per hm².It is suitable for spring sowing,the bolting percentage is 0.26 %.