Using 4 domestic maize inbred lines（Zheng 58,Chang7-2,Four-144 and Four-287） as testing materials, the combining ability and check heterosis of 16 American maize inbred lines were evaluated by NCII genetic mating design.To screen the American maize inbred lines with good combining ability and hybrid combinations with excellent characteristics as well as to provide theory basis for their reasonable utilization, the utilization potential of the 16 American maize inbred lines were analyzed. Among the testing American inbred lines, the LH205, 2 FACC, LH196 and LH190 showed excellent product characteristics GCA effect; the PHV37, PHW03, 2 FACC, LH163, LH206, LH220 Ht,LH160, LH162 showed excellent machine-harvesting characteristics GCA effect. In hybrid combinations, the LH160 ×Zheng 58, 2 FACC ×Chang 7-2, PHW43 ×Four-144, LH195 ×Four-287, LH220 Ht ×Four-287, LH190 ×Four-287,LH202 ×Four-287 showed excellent yield characteristics SCA effect; the 2 FACC ×Chang 7-2, LH195 ×Four-287,2 FACC ×Four-144, LH162 ×Chang 7-2,LH205 ×Chang 7-2,LH190 ×Four 287 showed excellent output TCA effect; the2 FACC ×Chang 7-2, LH195 ×Four-287, and 2 FACC ×Four-144 showed excellent advantages comparing to the check,which can be further verified in following test.

In this study, the effects of different concentrations of salicylic acid on the drought resistance of grape Cabernet Sauvignon under drought stress were studied. The physiological and biochemical indexes of Cabernet Sauvignon were studied by different concentrations of salicylic acid,and the physiological and biochemical indexes such as reactive oxygen species and photosynthesis were analyzed. The results showed that salicylic acid with concentration of 2 mmol/L could effectively improve the drought resistance of Cabernet Sauvignon.

In order to understand the relationship between strains from different origin, the genetic differences were explored between different strains.This study focus on using molecular techniques to analyze the DNA genetic phylogenetic of tomato canker pathogenic bacteria which collected from different areas, comparing the similarity of 43 strains by Blast method. The results showed that the 43 strains from different origin all were tomato canker pathogenic bacteria and the similarity was more than 99%. And the strains collected from the same area and year, especially the same tomato variety were almost clustered on the one branch.

In order to investigate the mechanism of drought resistance of Ceratoides arborescens,the differentially expressed proteins were identified by molecular biology technique under drought stress. The results showed that twenty differentially expressed protein spots were detected and seven representative spats of them were successfully identified,including three Ru Bis CO activase,one photosynthetic protein,two energy metabolism related proteins, and one adversity stress corresponding protein. It is speculated that drought stress has affects on the growth and metabolism of Ceratoides arborescens;as response to the drought stress, the drought-resistant proteins enhance the drought resistance of Ceratoides arborescens by protecting the photosynthesis system,improving the photosynthetic capacity of plants,and promoting the accumulation of sugar in plants.

A couple of DNA marking technologies（RFLP、RAPD、SSR、ISSR）are analyzed in the paper. These markers have broad applications in Pleurotus eryngii in the following areas： phylogeny, categorization, inter-intra-species identification,genetic diversity analysis, etc. The prospects of these markers are also forecast in the paper.

Taking Wudeli as the material, to explore the relationship between wet gluten and steamed buns quality,experimental results showed that after the sample Wudeli adding comprehensive reinforcement（0-10 g）,amount of gluten and steamed buns weight were significantly positive correlation,but color of steamed buns was negatively related with the volume,appearance, structure, elasticity, sticky teeth, positive smell and total score. Adding 2 g comprehensive reinforcement on the steamed buns had sensory effect. Sample Wudeli adding sieve bars（0 -5 g）,the amount and weight of steamed buns were significantly significant positive correlation,and had high positive correlation with volume, diameter and volume; gluten quantity and structure score had significant positive correlation; score and sticky had significantly positive correlation and positive correlation with other score; adding 4 g sieve bars on the sensory evaluation of steamed buns had greatest influence.

In order to improve the utilization efficiency of drip irrigation fertilizer, and reduce the risk of environmental pollution caused by excessive fertilization, a field experiment was carried out in Hetao Irrigation District in 2015—2016 and the effects of conventional fertilization（NPK） and 12% reduction in nitrogen（N1 PK） and 24% reduction in nitrogen（N2 PK） and 36% reduction in nitrogen（N3 PK） and 48% reduction in nitrogen（N4 PK） on yield and fertilizer efficiency of maize were studied. The results showed that the treatment of N1 PK and N2 PK had little effect on the growth and yield components of maize, and had no significant effect on Yield. The treatment of N3 PK N4 PK reduced the grain number and100 grain weight, were increased the bald tip length. On average, N3 PK and N4 PK treatments reduced production by 7.9%and 13%, respectively. On average, the utilization rate of N increased with the decrease of the amount of nitrogen fertilizer,from 29.3% to 35.7%. The utilization rate of phosphate fertilizer increased first and then decreased with the increase of nitrogen application rate and reached the highest in the treatment of N1 PK and N2 PK, the average was 19.9% and 20.0%respectively. In summary, the amount of nitrogen fertilizer which was reduced by 12% -24% on the basis of the existing fertilizer amount could obtain higher fertilizer utilization rate without reducing yield in the drip irrigation condition of Hetao irrigation district.

In this study, the effects of different amount of slow controlled release fertilizers on yield and benefit of maize were analyzed by conventional fertilizer control. The results showed that compared with the CK, all treatments had certain affects on promoting the growth of maize. With the increase of the amount of slow-release urea, all treatments increased first and then decreased. The highest yield of treatment 3 was 11 785.3 kg/hm^2, compared with the CK by 2 654.0 kg/hm^2.The yield rate was 29.7%, but not significant difference with treatment 2.The net income was higher than that of CK,to deal with the highest net income of treatment 2 and 1 increase of 52.6% and 52.5% compared with the control,and fertilizer ratio decreased with increasing the dosage of urea;treatment 1 was the highest 3.7 ∶1.0, saving fertilizer 530 kg/hm^2, and compared with CK income 3 492 yuan/hm^2 had the largest environmental benefits.

The tests selected Jinchuang 8, Jinshan 10, Jixing 46 and Zhengdan 958 as experimental material to study the dynamic changes about the content of total nitrogen、phosphorus、potassium of the different maize varieties in the stem, leaf and grains in different growth period. The results showed that the content of total nitrogen and phosphorus were declined in the stem with growth period（tasseling, filling, and maturation period）, the highest content on tasseling period. The amount of total potassium content was highest on tasseling period,and there was a v-shape rise in maturation. the content of total nitrogen、phosphorus、potassium in leaves decreased with growth period. The purity of total nitrogen of grain increased with growth period, it was highest on maturation period. The total content of phosphorus and potassium decreased with growth period. The nitrogen mainly distributed in stem on tasseling and filling period, and the distribution discipline was stemleafgrain on tasseling period,and the distribution discipline was stem grain leaf on filling period. The nitrogen mainly distributed in grain on maturation period and the distribution discipline was grain stem leaf,and the phosphorus primary distributed in gain on the tasseling,filling and maturation period,and the discipline was grain leaf stem. On the tasseling period,the potassium mainly distributed in the leaf,and the law was leaf grain stem; the potassium mainly distributed in grain on filling and maturation period,and the law was grain leaf stem. All of four varieties on each growth period,nitrogen, phosphorus and potassium content in stem of Jixing 46 were the highest.Nitrogen,and phosphorus and potassium content in leaf of Zhengdan 958 were the highest. Nitrogen content in grain of Jixing 46 was the highest,and phosphorus content in grains of Jinshan 10 was the highest, and potassium content in grain of Zhengdan 958 was the highest.

To study the effects of Ying guang bao microbial fertilizer on the yield and quality, the field experiment was conducted in six different millet varieties.The results showed that three agronomic characters were improved, especially the increase of the effective ear length, increased by 8.7% ~27.2% in six varieties of foxtail millet test（department）. In the aspect of dry weight in addition to the three varieties under the same processing production, all other production were increased by 4.5%~72.2%.Besides a variety of two treatments,all yields of other strains were increased by 3.4%~29.0%.The dry matter and yield of millet varieties had different degrees of change by the application of microbial fertilizers.But the dry matter and yield in different millet varieties were different.It showed that the variety and amount of the microbial fertilizer had certain pertinence to the crop varieties.Therefore,it is necessary to pay attention to the application of microbial fertilizer according to the needs of the amount and methods of crops.

To investigate the influence of biological agent on sunflower output,edible sunflower hybrid breed JK103 and LD 5009 were chosen as a research material.The effects of two kinds of biobacteria on the yield components of sunflower seed and the yield were studied to offer basis on efficient fertilization of edible sunflower.The results showed that anti-continuous cropping（fertilized with seed,60 kg/hm2） can increase setting percentage 、hundred-grain weight and output effectively.

The yield-increasing effect of nano-carbon sol application on maize was assessed by using plant height, stem diameter and yield as evaluation indicators. The results showed that： the maize treated with different dosages of nano-carbon sol had higher yield compared to the maize without nano-carbon sol treatment; the highest yield（15 659.3 kg/hm^2） was obtained when the maize was treated with 150 L/hm^2 of nano-carbon sol, which was 2 591.3 kg/hm^2 higher than that of CK（13 068.0 kg/hm^2）, indicating that the yield was increased by 19.5%; the application of nano-carbon sol promoted the growth of maize, higher plant height and stem diameter were observed in the nano-carbon sol treated maize compared with CK, and the best growth was obtained when the maize was treated with 150 L/hm^2 of nano-carbon sol; the maize treated with different dosages of nano-carbon sol had higher ear length, grain number and 100 grain weight than CK, and the best performance in these indicators was observed when the application dosage of nano-carbon sol was 150 L/hm^2. In summary,the application of nano-carbon sol can promote growth and increase yield of maize,and the optimum application dosage was150 L/hm^2.

In this study, twenty isolates were randomly chosen from the population of Sclerotinia sclerotiorum（S. sclerotiorum）（n=10） and Sclerotinia minor（S. minor）（n=10）. They were collected from the same sunflower field in Inner Mongolia region and compared for the difference in biological characteristics and pathogenicity. Our data indicated that after incubation on PDA at 23 ℃ for 3 days, the average diameters of S. sclerotiorum and S. minor colonies were 8.3 cm and 5.3 cm, respectively. The average yield of oxalic acid（OA） and polygalactourase（PG） activity of S. sclerotiorum isolates were 27.67 μg/mg mycelia and26.87 U/mg mycelia, respectively; for S. minor, those were 18.91 μg/mg mycelia and 21.58 U/mg mycelia, respectively. The sclerotial initiation and number of sclerotial of S. minor were much earlier and higher than that of S. sclerotiorum. The pathogenicity was also compared by using detached leaf assay. Our results indicated that the average lesion size at 2 days post inoculation of S. sclerotiorum was 3.11 cm which was significantly larger than that of S. minor（1.71 cm） at 0.05 significance level. In conclusion, except for the sclerotial formation, the S. sclerotiorum isolates showed higher growth speed,PG enzymes activity and pathogenicity compared with S. minor collected from the same sunflower field.

The pathogen fusarium moniliforme was Isolated with conventional tissue separation method.Maize was bred under natural environment.Inoculation was done using the method of double toothpick when the flowers were wilting.Investigation of morbidity was done after the maize were ripe and determining the resistance according to the evaluation standard of resistance. The results showed there was one variety that shows high resistance and account for 1.8% of total materials;there were 40 varieties that show resistance and account for 72.7% of total materials;there were 13 varieties that show sensibility and account for 23.7% of total materials;there was one variety that shows high sensibility and account for 1.8% of total materials. The experiment screen out 41 varieties that can be used as the resources against Ear and Kernal Rot of maize.It also provides the scientific basis for the selecting varieties of maize production in Shanxi province.

Jigu 35 using as the test plant material,12.5% sethoxydim EC,10% monosulfuron WP, 5% imazethapyr WA,56%MCPA sodium WP four kinds of commonly used herbicides were sprayed on cereal leaves. Setting low,medium and high levels,soil-applied herbicide and stem and leaf treatment,the efficiency of foxtail miller seedling for anti-screening test was conducted.Results showed that leaf spraying of 5% imazethapyr 2.0 kg/hm^2（dosage of active ingredients） dosage was good inhibition to the gramineous weeds with 4-6 leaves and it was safe to spring wheat and leaf spraying of 5% imazethapyr 3.0 kg/hm^2（dosage of active ingredients） dosage was good inhibition to the broad-leaved with 4-6 leaves and it was safe to spring wheat.

The content of some typical heavy metals including Cu, Pb, Zn and Cr of farmland soil around Hohhot city were detected through field investigation and laboratory analysis in this paper. The pollution comprehensive assessments on soil heavy metal were made based on index of land accumulation method and potential ecological risk index method. The results showed that the content of Cu, Pb, Zn and Cr in suburban agricultural soil from Hohhot city was 60.76,145.99,80.49,34.71 mg/kg,respectively, and the mean content of Cu,Zn and Cr was below the second standard limit value of ＂China environmental quality standard for soils＂. The PREI value was in the range of 35.02 -132.96, which indicated a low ecological risk. The land accumulation index showed that a slight pollution of Zn and Cr occurred in Hohhot suburban agricultural soil, and there was moderate pollution of Cu and Pb, which should be caused by the attention of the authorities.

Soil health is a new concept for the overall assessment of soil quality which focuses on the part susceptible to human activities. Therefore, it is important to understand and master the soil health situation for improving and protecting the soil quality in farmland. Based on the twelve physical, biological and chemical indicators identified by the Cornell Health Assessment System, the soil health situation was graded and scored by using multilevel fuzzy comprehensive evaluation method, in hoping to establish a scientific and comprehensive evaluation system on soil health status. This study is of referential significance to the evaluation of soil environmental quality in China.

bIn this paper, the productivity and adaptability of eleven introduced muskmelon varieties were characterized in terms of phenological period, field performance, quality and yield. The results indicated that all of the tested muskmelon varieties showed good field performance and marketability, and the varieties FA-1, Tianshan No.1, Xizhoumi No.25, Cuimi No.5, Cuimi No.4, Chengmi,Xizhoumi No.17 and Changxiangyu had good comprehensive characteristics. These varieties are suitable to be planted in Hetao region of Inner Mongolia.

In this study, in vitro culture system of Dracocephalum rupestre Hance was established for the first time by evaluating the effects of different explants, different types and concentrations of plant hormones on bud induction,proliferation and adventitious root induction. The results indicated that the stem with axillary buds was the most suitable explants for Dracocephalum rupestre Hance tissue culture and rapid propagation; the optimum medium for bud induction was MS ＋6-BA 0.5 mg/L ＋NAA 0.1 mg/L ＋IAA 0.2 mg/L, and the average induction rate was 63.6%; the proliferation culture medium for bud differentiation was MS＋6-BA 0.75 mg/L＋KT 4.0 mg/L＋NAA 0.01 mg/L＋ GA3 0.2 mg/L, with the average single bud proliferation number being 4.3; the optimum adventitious root induction medium was MS＋NAA 0.2 mg/L, and the rooting rate was 85.1%; the transplanting survival rate reached 100%. The results laid the foundation for the industrial production of Dracocephalum rupestre Hance plantlets.

Ulmus pumila,also known as beauty elm,could be trimmed to various shape for its much branches and full crown, and it played an important role on landscape. In order to establish the rapid propagation system of Ulmus pumila,using the stem, axillary buds and leaves of Ulmus pumila as explants, the effects of different disinfection methods and induction culture on the rapid propagation of Ulmus pumila were studied. The results showed that the optimum medium was MS medium with sucrose 20 g/m L, the best disinfectant was 0.1% Hg Cl2. The disinfection time was 6 min. The induction rate of different explants was different in different hormones. Under the condition of 0.5 mg/L 6-BA＋2.00 mg/L NAA, the callus induction rate of stem section was relatively high. The largest number of axillary buds adventitious bud proliferation was 1.0 mg/L 6-BA ＋0.25 mg/L NAA. In the 4.0 mg/L 6-BA ＋1.00 mg/L NAA combination, blades induction rate were the highest. The results can provide reference for the optimization of the tissue culture and rapid propagation of Ulmus pumila.

Anthocyanin, belonging to the plant polyphenols, is widely distributed in the nature and has strong free radical scavenging activity and antioxidant activity. Some recent studies have demonstrated that black rice anthocyanin is a kind of safe, non-toxic and natural edible pigment, and has many physiological functions, such as hypoglycemic, anti-oxidant,anti-allergic, anti-aging, and anti-tumor efficacy. Accordingly, anthocyanin is widely used in food, medicine, cosmetics production and many other fields. This article expounds the biological activities of anthocyanin in Red Kernel Color, in hoping to provide valuable information for its further studies and applications.

On the basis of the traditional visible band and near infrared band, the German Rapid Eye satellite sensor provides red-edge waveband which is more conducive to the classification of surface vegetation and the monitor of vegetation growth. In order to quantitatively analyze the impact of recognition ability which Rapid Eye satellite images adding the red edge band, the area of corn and soybean in the study area was extracted with the monitoring classification method based on BP neural network by using the Rapid Eye satellite remote sensing data of Hadayang town, Hulunbuir, Inner Mongolia on July 25, 2017. Separable measure and confusion matrix of corn, soybean and other kinds of ground objects in the region were calculated under 2 kinds of waveband combinations with or without the involvement of red-edge waveband.Furthermore, the separability of crop extraction and classification accuracy based on confusion matrix was compared and the classification accuracy verification was evaluated by the study area visual interpretation results. The results show that ： The degree of separation between corns and soybeans, soybeans and others, as well as corn and others were improved from 1.71 to 1.99, from 1.97 to 1.99, from 1.91 to 1.93, respectively. The overall accuracy was increased from 79.57% to 84.14%,and the Kappa coefficient was increased from 0.63 to 0.71. The combined data obtained in this study demonstrated that the red-edge waveband significantly improved the ability to distinguish corn from soybean and other objects. There are more and more satellite loads on the red-edge waveband in foreign countries. The domestic satellite also plans to introduce the rededge waveband load technology, which provides more reliable data support for the agricultural administration sector. The results of this study provide reference for the application of red-edge waveband data in agriculture.

In this paper, the necessity of construction and application of monitoring and early warning system of agricultural products market information was elaborated including present establish situation of Inner Mongolia and how to accelerate the construction. Application of this system will promote the steady development of agricultural industrialization in Inner Mongolia and provide a new way of development in order to realize the real-time, intelligent and precise agriculture.

Maize as one of the high productivity crops is the dominant crop in Inner Mongolia. comparing with other grain crops and maize has the largest planting area with the highest gross productivity and yield in this region. Although rotation would benefit the structure of agriculture systems, the agricultural enterprises, cooperatives and farmers keep expanding the maize planting area because of the higher gross farm-economic value by planting maize. This resulted in a break for the rotation systems, which lead to soil degradation and impact the continuous increase of crop productivity. In this paper, the main issues was analyzed in the current planting system and the responding strategies were proposed,and then the major profits in the maize rotation systems with the ecological and efficient planting system was explored. Based on the above analysis, a modern agriculture approach was provided in building up maize rotation systems toward increasing crop yield,gross productivity.

The subsidy and investment from the central finance in agricultural machinery purchase has been increased year by year. Its implementation scope covers basically all the agricultural and pastoral banners and counties（farms） in Inner Mongolia Autonomous Region. The subsidy scope is further optimized and the subsidy target is relaxed and explicit moderately. The agricultural purchase subsidy policy has achieved good results of ensuring the food production safety and benefiting farmers and herdsmen directly. In view of the present situation in Inner Mongolia, this study investigates the support key points and policy creation of Inner Mongolia agricultural machinery purchase subsidy in the new period and puts forward some suggestions for the policy making.