Study on the Introduction and Screening of Cut Roses in the Tropical Coastal Area of China

[Objective] This study aimed to select suitable cultivars of cut roses with prominent comprehensive performance which is suitable for the commercial promotion in the tropical region of South Hainan Province,including Sanya and the low-altitude area.[Method] Introduction experiment and production test were designed to observe the agronomic and economic traits of cultivars in a rose resources nursery established in Sanya.[Result] Through observation in the resources garden,18 varieties were chosen to conduct the introduction experiment,of which 8 varieties were selected to accomplish the production test.The results of the production test showed that ＇Vendela＇,＇Golden Emblem＇,＇Samantha＇ and ＇Tineke＇ showed the best adaptability;the cut flower quality of ＇Carola＇,＇Black Magic＇ and ＇Golden Emblem＇ belonged to the first grade;the yield of ＇Movie Star＇,＇Golden Emblem＇ and ＇Black Magic＇ was more than one million per hm2;except ＇Golden Emblem＇,the vase life of the other seven cultivars was more than 10 days;＇Carola＇,＇My Choice＇ and ＇Perfume White＇ had better disease-and insect-resistance;＇Carola＇,＇Vendela＇,＇Rouge Meilland＇,＇Tineke＇,＇Golden Emblem＇,＇Samantha＇,＇Perfume White＇,＇Saiun＇,＇Asagumo＇ and ＇Double Delight＇ were more resistant to blackspot,while ＇Black Magic＇,＇Versilla＇,＇Alec＇s Red＇ and ＇Movie Star＇ were less resistant to blackspot.[Conclusion] Cultivars of cut roses were able to grow and develop normally in the tropical coastal area of Hainan Province,including South Hainan and Sanya,where it was appropriate for the production of cut roses.However,it is necessary to pay attention to the prevention and control of thrips and blackspot.＇Black Magic＇,＇Carola＇,＇Vendela＇,＇Rouge Meilland＇,＇Golden Emblem＇,＇Tineke＇,＇Movie Star＇ and ＇Samantha＇ showed best comprehensive performance,which were thus worthy of large-scale popularization in Hainan Province.

Introduction and Breeding of Olive Variety‘Picual'

The olive variety ＂Picual＇ is native to Jaen Province, Spain and is the main cultivar of olive. In 1979, scions were introduced into China and were grafted in Wuchang of Hubei, Chenggu of Shaanxi, Santai and Xichang of Sichuan, and Kunming of Yunnan. Its fruit is oval, and the weight of a single fruit is 5.38 g. The top of fruit is rounded, and stigma exists. The base of fruit is flat. There is a mouth on the top of its fruit, and it is asymmetric. Oil content in fresh fruit is 24.69%, and oleic acid content is 77.5%; the oil quality is good. In the areas with cold winter in dry and hot valleys of the Jinsha River in Yunnan, its fruit matures in late September. In 2016, it was approved to be a good variety by Yunnan Forest Tree Variety Examination and Approving Committee.

Study on Introduction and Plantation of Elaeagnus angustifolia L.

[Objective] The experiment aimed to explore the possibility of introducing Elaeagnus angustifolia L. in saline land of West Jilin Province for improving local ecological environment. [Method] The Elaeagnus angustifolia L. from Ningxia Province were sown in nursery and practice base of Forestry College in Beihua University to observe their phenophase, growth state, stress resistance and study the relations between survival rate and different cutting medium, grafting methods. [Result] Elaeagnus angustifolia L. could adapt to climate condition in Jilin area and grow well . Among 3 cold-proof measures, there was no freezing injury by soil burial method, although there was 2.8% and 3.9% mortality by covering grassy marshland and winding straw, the cold injury degree was light, so they could go through winter normally. Meanwhile, Elaeagnus angustifolia L. had good saline-alkali tolerance, drought resistance and flood resistance. The successful cutting and graft of Elaeagnus angustifolia L. provided a condition for planting in large-scale and knew the rooting rate of different cutting medium. [Conclusion] Elaeagnus angustifolia L. could be introduced to plant in West Jilin Province.

THE PORTRAIT OF A LADY: An Introduction and Appreciation

By the 1880’s, Henry James had published some twelve volumes, including two full-length novels, and had another volume in preparation. His reputation as a writer had already been established. Yet, being a fastidious craftsman, James dismissed all his writings up to this time as merely a series of "experiments of form" and the first stage of a "step-by-step evolution". Now he was confident that he could attain "form" in big subjects and he was determined to do something "big".

Introduction and Utilization of INGER Rice Germplasm in China

The International Network for Genetic Evaluation of Rice (INGER) is a global partnershipbetween international and national agricultural research institutions. INGER focuses onworldwide exchange, evaluation and utilization of improved varieties and elite breedinglines of rice. China has actively participated in the activities of INGER since 1980.During the pasted years, 26500 INGER entries with diversity genetic background have beenintroduced and evaluated by Chinese scientists. Among of them, 37 commercial varietiesdirectly from elite INGER entries and 27 rice hybrids using INGER lines as their restorerlines/donors have been released to farmers in China. About 1900 INGER entries wereindirectly utilized as cross parents or pest resistant donors in various national andprovincial rice breeding programs. Based on the incomplete statistics, there were 14.5million cumulated hectares planting these varieties and hybrids, from which 5.44 MT ofincreased rough rice has been received by farmers. INGER accelerates the transfer ofadapted varieties and hybrids to farmers, and increases the diversity of rice germplasmin cultivation. Therefore, INGER cooperation has made great benefit both in economy andsociety in China.

Introduction and Selection of Poplar S307-26 and PE-19-66 in Shandong Province

clones of Populus deltoides and P. ?euramericana were introduced from Italy, Turkey and domestic in 1986 and 1987 with the agreement of FAO. A completely random block design was applied and the seedling test and controlled afforestation trials had been held at Jinan City, Gaotang County and Juxian County, Shandong Province respectively. The results showed that two clones, namely S307-26 (P. deltoides cv.慡307-26? and PE-19-66 (P. deltoides cv. 慞E-19-66? performed well both in terms of adaptability and growth characteristics. The mean growth volumes (V) of single tree of S307-26 and PE-19-66 were 0.181 2 m3 and 0.164 9 m3, which were 42.0 % and 29.2 % larger than that of I-69 (P. deltoides cv. 慙ux?I-69/55) (CK), respectively, at the age of 5 years at three experimental sites. Results of variance analyses and T test (LSD) for variables showed that above mentioned two clones were significantly different with I-69 (CK). Further analyses found that both clones could be propagated easily and showed high resistance to poplar diseases, pests, drought, cold as well as strong wind, and had long growing period. Furthermore, mechanical properties were also better and fiber length was longer than that of I-69 (CK). It was concluded that both S307-26 and PE-19-66 were ideal varieties for the establishment of fast growing poplar plantations, especially of the wood pulp forest plantations in the region.

The Introduction and Spread of Pumpkin in China

Pumpkin is native to the Americas.According to local gazetteers,it was introduced to China’s southeastern coastal areas and southwestern frontiers in the early sixteenth century,and rapidly spread nationwide as a crop serving as both vegetable and staple.By the end of the Ming dynasty it had spread to most provinces of China,reaching nationwide distribution during the Qing.During the Republic of China in the first half of the twentieth century,high-caliber breeds became more widely known,with cultivation particularly flourishing in Sichuan Province and across North China.It had significant impact on the rural economy,resulting in changes in the planting system,the relief of famine,and the enrichment of the practice of traditional Chinese medicine.

Synthesis of large FeSe superconductor crystals via ion release/introduction and property characterization

Large superconducting Fe Se crystals of（001） orientation have been prepared via a hydrothermal ion release/introduction route for the first time. The hydrothermally derived Fe Se crystals are up to 10 mm×5 mm×0.3 mm in dimension. The pure tetragonal FeSe phase has been confirmed by x-ray diffraction（XRD） and the composition determined by both inductively coupled plasma atomic emission spectroscopy（ICP-AES） and energy dispersive x-ray spectroscopy（EDX）. The superconducting transition of the Fe Se samples has been characterized by magnetic and transport measurements. The zero-temperature upper critical field H（c2） is calculated to be 13.2–16.7 T from a two-band model. The normal-state cooperative paramagnetism is found to be predominated by strong spin frustrations below the characteristic temperature T（sn）, where the Ising spin nematicity has been discerned in the FeSe superconductor crystals as reported elsewhere.

Introduction and Reproductive Technique of Endangered Medicinal Plant Gentiana rigescens

Gentiana rigescens Franch. ex Hemsl., a local medicinal plant in Yunnan Province, had very rich resources and was widely distributed in nature in the past. However, the population of G. rigescens is shrinking and the wild plants are rare in Yunnan Province, so it is on the verge of extinction at present. Systemic reproduc-tive technique for G. rigescens is established after many years of efforts and il us-trated in this study.

Current Situation of Introduction and Use of African Crop Germplasm Resources and Recommendations

Africa is the origin center of many crops. It is rich in original ecological resources,especially special resources which are excellent materials for breeding research. With acceleration of commercial seeds in agriculture of African countries,some original ecological resources are disappearing. Through experience of introduction of African varieties in recent years,it analyzed current situation of introduction and use of African crop germplasm resources. Finally,it came up with recommendations for rescuing and taking full advantage of excellent African resources,solving difficult problem restricting crop breeding,enriching China's crop germplasm bank,and improving China's and African crop breeding level and innovation ability.

Reform and Practice of the Course“Introduction to Computer Science”in Universities Based on the Cultivation of Computational Thinking and Systematic Abilities

Introduction to Computer Science,as one of the fundamental courses in computer-related majors,plays an important role in the cultivation of computer professionals.However,traditional teaching models and content can no longer fully meet the needs of modern information technology development.In response to these issues,this article introduces the concept of computational creative thinking,optimizes course content,adopts exploratory teaching methods,and innovates course assessment methods,aiming to comprehensively enhance students’computational thinking and innovative abilities.By continuously improving and promoting this teaching model,it will undoubtedly promote computer education in universities to a new level.

The Translation and Introduction of Chinese Myth in English World

Different from Greek myth,Chinese myth is scattered among many kinds of ancient books such as The Classic of Mountains and Seas,Chuci,Huainanzi,etc.There is no Chinese classic that records mythology like the Odyssey and Iliad.After the 20th century,Chinese scholars began to collect and study myths.In the English world,missionaries began to translate and introduce Chinese myths from the middle and late 19th century,and then Chinese scholars and sinologists have been translating and introducing Chinese myths.At present,the English translation of Chinese mythology has made a lot of achievements,but there are also many misunderstandings.This paper explores the current situation of the English translation of Chinese mythology by analyzing several well-known translations.

A Study of English Grammar Teaching and Cultural Introduction from the Perspective of Applied Linguistics

Grammar teaching is the main content of university English teaching,and the quality of teaching will affect the effect of university talent cultivation.Based on the perspective of applied linguistics,it is crucial to use cultural introduction teaching for English grammar teaching.This paper will combine the basic concepts of applied linguistics and cultural introduction teaching,analyze the role of using the cultural introduction teaching method to innovate grammar teaching mode under the perspective of applied linguistics,and put forward a scientific English grammar teaching strategy with the goal of improving teaching quality.

Exploration of the Methods and Insights in the Introduction to Critique of Hegel’s Philosophy of Right

Marx,as one of the founders of Marxism,experienced a significant transformation in his thought during the period of 1843-1844.The Introduction to Critique of Hegel’s Philosophy of Right(hereafter referred to as the Introduction)is one of Marx’s most representative works from this time.Lenin noted that this text,along with Marx’s On the Jewish Question,marks Marx’s transition from idealism and revolutionary democracy to materialism.In this renowned text,Marx offers a rational critique of the absolute authority of religion,articulates a vision for human emancipation,and envisages the possibility of free and comprehensive human development.During this intellectual shift,Marx absorbed the essence of German classical philosophy and,from a positivist perspective,began employing critical thinking and materialist expression.This enabled him to embark on a path of critique addressing both the religious and real social worlds.In the new era,systematically studying Marxist classic works allows for the exploration of their contemporary relevance.By aligning these classics with specific directions outlined in reports such as those from the 20th CPC Central Committee’s Third Plenary Session,the vitality of these works can be reinvigorated for the modern age.

Survey of damaging pests and preliminary assessment of forest health risks to the long term success of Pinus radiata introduction in Sichuan, southwest China

Pinus radiata was introduced to the summer rainfall environments of Sichuan Province, China in the 1990s as a part of an afforestation pmgram for soil and water conservation in the arid and semi-arid river valley area of Aba Prefecture. Within this region a total area of 26 000 ha have been identified through climate matching as suitable and a further 63 000 ha potentially suitable for environmental plantings of P. radiata. The plantations are being established in widely separated small patches on steep and degraded slopes along the dry river valley The newly introduced P. radiata are exposed to two kinds of forest health risks： they may be attacked by （a） indigenous pathogens and pests against which they may not possess any resistance or （b） by inadvertently introduced foreign pests or pathogens. This paper presents a survey of the potential damaging pests and a preliminary assessment of forest health risks facing the P. radiata plantations over a much longer timeframe than the initial phase of introduction and early plantation establishment. An empirical appmach was adopted to evaluate forest health risks by a combination of literature review, examination of historical records of pest and disease outbreaks in the surrounding conifemus forests, field surveys and inspections, specimen collection and identification, and most importantly, expert analysis of the likelihood of attack by specific pests and pathogens and the subsequent impact of such attacks. The assessment identified some specific forest health risks to the long-term success of P. radiata introduction in this area. These risks are closely associated with the indigenous pests and pathogens of the two native pine species, P. tabulaeformis and P. armondii since these pests and pathogens are considered more likely to establish on P. radiata over time. Exotic pests and pathogens are of a quarantine concern at present. Based on the results of assessment, recommendations are pmvided to improve forest vigour and to reduce the forest health risks posed by indigenous as well as exotic pests and pathogens to the introduced P. radiata. Ways to increase the ability to manage the forest health risks once a particular pest infestation and disease eventuates are also recommended. Although detrimental to the survival and growth of the introduced P. radiata, the impact of identified forest health risks are not considered to be fatal to the long term success ofP. radiata in this area.

Study on the Introduction of Plants with Colored Foliage in Zhengzhou Area and Their Adaptability

[Objective] This study aimed to preliminarily select the plants with colored foliage adaptable to Zhengzhou area. [Method] An introduction trial on 42 varieties with colored foliage was conducted, in which major ornamental characteristics, phenological phases and stress resistance of all the introduced plants with colored foliage were observed and the introduced plants were comprehensively evaluated. [Result] Golden-and Compound-leaved Maple, Red-leaved Sakura, Pink-and Compound-leaved Maple, Amur Maple, Purple-leaved Canadian Redbud with good performance were selected preliminarily, which can be applied for landscape in Zhengzhou area. Among them, Golden- and Compound-leaved Maple, Golden- and Silvery-leaved Maple and Purple-leaved Smoketree can either be planted separately, or in a line as boulevard trees, or in groups as ornamental forest; Red-leaved Sakura, Pink- and Compound-leaved Maple and Purple-leaved Canadian Redbud can be planted in groups or separately in gardens, parks or alongside streets or in front of buildings; Amur Maple with high adaptability is a excellent tree species for afforesting barren mountain. [Conclusion] This study has not only provided new excellent germplasm sources for the landscaping in Zhengzhou area, thus favoring the improvement of local landscaping level, but also provides examples and references for the introduction of plants with colored foliage in the other areas.

Introduction Performance and Cultivation Techniques of Himrod Grape Planted in Tianjin

After six years of Himrod grape regional trial, the Himrod had very early- ripening precocity, stable flower bud differentiation, good fruit quality and great resis- tance to diseases, which could be a moderate development grape variety in Tianjin. The introduction performance cultivation techniques of Himrod grape were summa- rized.

Approaches of Biological Invasion and Countermeasures in the Introduction of Landscape Plants

Bio-invasion types in the introduction of landscape plants were analyzed as well as invasion approaches and reasons,and corresponding measures were proposed to reduce bio-invasion.

Ecological Suitability Assessment and Introduction Experiment on Rosa damascena trigintipetala in Sichuan Province, China

This study comprehensively considered the climate, soil, terrain, and land-use type conditions suitable for Rosa damascena trigintipetala and further established an ecological suitability evaluation model of R. damascena triginffpetala in Sichuan Province, China, based on geographic information systems （GIS） and Agro-Ecological Zone （AEZ） models; then we assessed the different ecological suitability grades for this species in Sichuan Province of China and summarized the suitable land areas and spatial distribution pattern for R. damascena trigintipetala. The results show that the suitable areas （which contain highly suitable, generally suitable, and critically suitable areas） for R. damascena trigintipetala are 307.268×lO4 hm^2, which accounts for 6.34% of the total provincial area. Results also indicate that shrub land and open forest land are the major land-use types suitable for R. damascena trigintipetala, with the suitable areas of 303.162×lO4 hm2 （6.25% of the total provincial area）. An introduction test was conducted in one of the suitable areas, Xichang City, which demonstrated that R. damascena trigintipetala grows well at theexperimental sites. The quality of rose oil extracted from R. damascena trigintipetala planted in Xichang meets the Bulgaria Rose Oil Standard, thus verifying the accuracy and reliability of the ecological suitability assessment results.

The Changes in the Awareness of Cervical Cancer Prevention and the Acceptability of HPV Vaccines among Women after Their Introduction in China

Cervical cancer is a form of malignant tumor that seriously threatens women’s health. In China,according to the cancer statistics, 98,900 new cervical cancer cases and 30,500 deaths due to cervical cancer were estimated to have occurred in2015, and the incidence and mortality rates still exhibited an upward trend[1].