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In order to reduce pesticides, it is also necessary to understand how plant diseases originate in the beginning and to be around them all around the world. One of the best ways to achieve this goal is to promote images that are not visible to the world (WMSN) in an agricultural country. However, the sending of a wireless device with little knowledge of the images will add more traffic to traffic, especially electricity. In this pamphlet, we create a diagnostic procedure that is aimed at driving WMSN’s additional resources. From the study of the locally available nodes of the plants, this new technique can make the first choice on the vegetation of the plants, knowing how to send pictures to the control center to continue to explore, to move forward. Look at the Internet. The same method includes the distribution of images using color and shape, and its 2D profile is used as part of the stages. What happens on metal images and lack of food indicates that the correct route is 94.5%.

Nitrate transporter NRT1.1 enhances NH4+ accumulation, disturbs NH4+ metabolism, and aggravates NH4+ toxicity in Arabidopsis grown in a high concentration of NH4+ as the sole N source.

Oil from rapeseed with high oleic oil content is insensitive to oxidation and long shelf life.In daily diet with high oleic acid oil can reduce low-density lipoprotein cholesterol levels in blood and prevent arteriosclerosis.In addition,high oleic acid content in edible oil is an important fat indicator.Oleic acid can be effectively converted to methyl ester,which is beneficial to produce biodiesel.Oleic acid content in conventional rapeseed is only 17%.However,oleic acid content in low erucic acid rapeseed reaches around 60%.Differential expressed genes of oleic acid have been found in the high oleic acid line(71.71%) and low oleic acid line(55.6%) of Brassica napus by gene chip technique.The results showed that there were 562 differential expressed genes relating to high and low oleic acid contents in rapeseed,among them 194 were up-regulated genes and 368 were down-regulated genes.The up-regulated gene NM_100489 and the down-regulated gene NM_130183 were then taken as the materials.Real time RT-PCR was further used to confirm the results of gene chip,and the results of real time RT-PCR analysis agreed with the results by gene chip.According to the results of gene chip,562 differentially expressed genes were annotated functionally using Go Annotation System.The molecular function of differential expressed genes mainly included catalysis of enzymes,binding,transcriptional regulation,metabolism and others with unknown functions.Some genes related to sugar metabolism and fatty acid synthesis were identified as differential expressed genes.They are pyruvate kinase,fructose diphosphate,acyl transfer/acyl-ACP S lipase,hydrolase acting on ester bond,Δ9 stearoyl acid-N-carrier protein desaturase(ADS1),Δ9 acyl-lipid desaturase 2(ADS2),ω-3 fatty acid desaturation enzymes(fad3) and so on.

Field experiments were conducted to investigate the effects of different NPK ratio on yield and NPK uptake of Xiangzayou 763.The results showed that under the same amount of other fertilizers either with the higher nitrogen ratio or higher phosphorus ratio treatments a higher rapeseed yield could be obtained while the proportion of potassium application had no regular consensus under the same amount of other fertilizers.The accumulative amount of NPK in plant were correspondingly increased as the proportion of nitrogen and phosphorus fertilizer increased,while the accumulation of K as that;The tendency of NPK fertilizer utilization rates were all decreased with the increasing usage of the same kind of fertilizer,the sharpest decline appeared in the utilization of potassium,the smallest reduction appeared in nitrogen utilization.Among the twelve kind of tested NPK ratio,the highest rapeseed yield appeared in the proportion of N:P2O5:K2O=1:0.5:0.58,which reached 1 830 kg/hm2,followed by the N:P2O5:K2O = 1:0.5:0.88,which reached 1 800 kg/hm2,the lowest rapeseed yield appeared in N:P2O5:K2O = 1:0.4:1.4,which was only 1 350 kg/hm2.

In order to find intelocking RAPD marks for the glucosinolate trait in Brassica napus,967H and 967L were used as materials,which kept similar characteristics in quality and other agronomic traits except for the glucosinolate trait,to study RAPD marks of the parents and their F1 and F2 plants.The results showed that 6 RAPD primers from 482 RAPD primers were detected polymorphism between parents,and one RAPD primer(S268) from the 6 RAPD primers was detected polymorphism between two parents and two DNA bulks.The primer S268 could only display three kinds of different marks.Variant analysis with a single mark indicated that the low glucosinolate traits of 29.51% were contributed by the S268 mark.

The cDNA library normalized by reassociation is a newly-developed and effective platform for EST acquisition and gene discovery.It decreases the prevalence of clones representing abundant transcripts and dramatically increases the efficiency of random sequencing and rare gene discovery.The principle,procedure and applications of normalized cDNA library were reviewed in this paper,which provides theoretical basis for the development of normalized cDNA library and discover more novel genes.

Field plot experiment was carried out on Xiangzayou763 to study the effects of different fertilizer application levels (N∶P2O5∶K2O∶B,treatment A,240∶120∶210∶1.2 kg/hm2;treatment B,180∶90∶157.5∶0.9 kg/hm2; treatment C,120∶60∶105∶0.6 kg/hm2; treatment D:60∶30∶52.5∶0.3 kg/hm2; treatment E, no fertilizer) and different planting densities (7.5×104, 1.5×105, 2.25×105, 3.0×105, 3.75×105, 4.5×105 plant/hm2) on oil content, protein content, thioglycoside content and erucic acid content in seeds. The results showed that oil content and protein content in seeds were greatly influenced by fertilizer application levels but less influenced by planting densities. Oil content of treatment C and D were much higher, protein content was increased with fertilizer application level increasing. Effects of fertilizer application level on oil content and protein content were higher than that of planting densities and the same trend was observed in seeds yield changes. The highest oil content and protein content were shown in fertilizer application treatment A with 2.25×105 plant/hm2 planting density. There was no regular change of thioglycoside content and erucic acid content in seeds under different fertilizer application levels and planting densities.

The global warming caused by heavy emissions of greenhouse gases has posed a great threat to the existence and develop- ment of mankind. The carbon sink function of crops has an important regulating effect on climate changes. Actually the production of crops can be seen as the carbon source as well as the carbon sink. In this article, the authors gather and analyze the relevant carbon emission parameters of the staple crop production system in China, estimate the carbon sink effect of farmland and its dynamic change feature and quantitatively evaluate the carbon input and output of these crop production systems. In this way, the paper provides a basis for making the low-carbon agriculture planning and policies and proposes the approach to optimizing the carbon sink structure of the

China is a big agricultural country. The research on the carbon sink function of crop production in China’s typical agricultural areas plays an important role in estimating the regional carbon budget and making management policies to tackle climate changing issue. The production of staple crops can be generally reflected by their carbon sinks. The carbon sinks of different crops in the same area differ greatly, and the carbon sink of the same crop also differs in different areas. The national annual reserve of soil organic carbon can be generally embodied in its carbon sink as well. The annual reserves of soil organic carbon in different areas range between –2.07 TgC·y and 19.95 TgC·y.

For problems existing in seed-metering device uniformity testing, use photoelectric detection technology on seeding uniformity testing. Its working principle is to use optical sensors to monitor the situation that seeds passing through the seed channel, records the cumulative number of seeds of each channel by counting chips and MCU and periodically send to the PC, obtaining relevant data such as seeding uniformity of seed-metering device through further data analysis. Tests showed that under the same conditions, relative error between test data of the system and manual measured data is less than 5%, meet the actual needs. At the same time, compared to manual measurement, the system also has advantages of low cost, easy operation, without calculation and continuous online work available.