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        검색결과 6

        2.
        2013.07 서비스 종료(열람 제한)
        Current agriculture encounters several challenges including increase in human population, increased meat consumption from income growth, climate change, and demand for healthier foods. Together this puts a tremendous strain on limited natural resources and on an increasingly fragile ecosystem. Today, 55% percent of habitable land is used for agriculture. Two-thirds (66%) of all annual fresh water withdrawals are used for irrigation. Energy is another vital input for agriculture productivity and experts are predicting increasing global competition for supply sources. Monsanto Company uses biotechnology, plant breeding, and agronomic solution to meet the increased food demand. In June 2008, we issued a three-fold commitment (produce more, conserve more and improve farmer’s lives for agriculture to be sustainable) that we call our Commitment to Sustainable Yield. Here, we present Monsanto pipeline to fulfill our commitment for sustainable agriculture.
        3.
        2007.11 KCI 등재 서비스 종료(열람 제한)
        Plant germplasm resources are the plant materials containing useful inheritable characters of actual or potential value. Generally speaking, plant resources include cultivated and wild plants. China is a megadiversity country. A great lot of different complex climate environments in China such as dryness, wetness, clearness, clouding, shade, plain, hill, mountain, and so on, have gestated many Chinese endemic special plants. Some of them have special genes, such as resistance to drought, chilliness, disease, pests, and saltness etc, elite quality, high yield characteristics and so on. There are 470 families、about 3 7000 genus、more than 30 000 species of lichen, fern、seed plants in China. Special species in China involve 200 genus and about 10 000 species. Plant resources in China are conservated in situ and ex situ, by means of reforestation, regrassing, natural protection zones, arboreta, campus, parks, and institutes, etc. National Crop Gene Bank in Beijing, built in 1986, has 3200m2, two long-term rooms (T=-18℃±1℃, RH<50%) with the capability 400,000. There are more than 340,000 accessions in long-term banks of the National Crop Gene Bank of China, involving 35 families, 192 genus, 725 species. Among them, 80% are native to China. Up to now, there have been more than 210 main tree species for artificial forestation in China. Among them, there are more than 120 species for reforestation of barren slopes, deserts, and stony mountains. There are about 800-1000 Chinese traditional medicine plants, which were mainly conservated in situ and ex situ. The application of plant germplasm in China in plant biotechnology were reviewed on the following aspects: (1)Core germplasm construction by molecular marker technology (2)Plant germplasm preservation by biotechnology (3) Plant germplasm reproduction and industrialization by biotechnology (4) Elite gene discoverfrom plant germplasm by biotechnology (5) Plant germplasm in China and gene engineering technology. At last, some problems of plant resources in China were put forward.