Yunyan 97 was selected as the raw material. The effects of removing different number （0, 2, 3 and 4） of lower leaves on root activity, chlorophyll content, physiological features and contents of neutral aroma consti...Yunyan 97 was selected as the raw material. The effects of removing different number （0, 2, 3 and 4） of lower leaves on root activity, chlorophyll content, physiological features and contents of neutral aroma constituents in the flue-cured tobacco were analyzed. The results showed that the removal of lower leaves could significantly increase the root activity, chlorophyll content, net photosynthetic rate （Pn） and transpiration rate （Tr）, and delay the photosynthetic functional decline. Such effects were the greatest in lower leaves, followed by middle leaves and upper leaves. Moreover, the degree of the effects increased with higher number of leaves removed. After She lower leaves were removed, the water use efficiency （WUE） of leaves in the first 10 d became higher with more leaves removed. In the later periods （24 d, 38 d）, WUE decreased with more leaves removed. For the middle and upper leaves, the removal of three leaves （T2） and two leaves （T1） resulted in the highest contents of aroma constituents, respectively. For the tobaccos cultured in soil with moderate fertility under the experimental conditions, the appropriate number of lower leaves removed should be 2-3.展开更多
In the early 1950s, the Greek National Tourism Organization made a nation-wide attempt to develop tourism in Greece. For a period of two decades, it developed the hotel buildings＇ substructure, a project known as the...In the early 1950s, the Greek National Tourism Organization made a nation-wide attempt to develop tourism in Greece. For a period of two decades, it developed the hotel buildings＇ substructure, a project known as the ＂Xenia project＂. During this period, Greek architects, devoted to modernism, designed and supervised 53 hotel compounds, which spread throughout the country. Today, the Xenia Hotels are internationally recognized as part of Greece＇s modern cultural heritage, based on the simplicity, the definition of the form and the truth in materials use, besides the integration of the buildings in the natural environment, components which reveal themselves as a unique venture. This paper aims to reveal that, despite the efforts to retain the Xenia Hotels, these procedures remain incomplete. They rightly focus on architectural shells, morphological and functional standardization, proper utilization of the Greek environmental conditions, and the use of authentic local materials. However, the cultural evaluation of these settlements can only be completed by their holistic design, which also comprises their interior spaces, lightening and furniture design, all these detailed aspects that form an organic entirety and which are not included in these efforts.展开更多
文摘Yunyan 97 was selected as the raw material. The effects of removing different number （0, 2, 3 and 4） of lower leaves on root activity, chlorophyll content, physiological features and contents of neutral aroma constituents in the flue-cured tobacco were analyzed. The results showed that the removal of lower leaves could significantly increase the root activity, chlorophyll content, net photosynthetic rate （Pn） and transpiration rate （Tr）, and delay the photosynthetic functional decline. Such effects were the greatest in lower leaves, followed by middle leaves and upper leaves. Moreover, the degree of the effects increased with higher number of leaves removed. After She lower leaves were removed, the water use efficiency （WUE） of leaves in the first 10 d became higher with more leaves removed. In the later periods （24 d, 38 d）, WUE decreased with more leaves removed. For the middle and upper leaves, the removal of three leaves （T2） and two leaves （T1） resulted in the highest contents of aroma constituents, respectively. For the tobaccos cultured in soil with moderate fertility under the experimental conditions, the appropriate number of lower leaves removed should be 2-3.
文摘In the early 1950s, the Greek National Tourism Organization made a nation-wide attempt to develop tourism in Greece. For a period of two decades, it developed the hotel buildings＇ substructure, a project known as the ＂Xenia project＂. During this period, Greek architects, devoted to modernism, designed and supervised 53 hotel compounds, which spread throughout the country. Today, the Xenia Hotels are internationally recognized as part of Greece＇s modern cultural heritage, based on the simplicity, the definition of the form and the truth in materials use, besides the integration of the buildings in the natural environment, components which reveal themselves as a unique venture. This paper aims to reveal that, despite the efforts to retain the Xenia Hotels, these procedures remain incomplete. They rightly focus on architectural shells, morphological and functional standardization, proper utilization of the Greek environmental conditions, and the use of authentic local materials. However, the cultural evaluation of these settlements can only be completed by their holistic design, which also comprises their interior spaces, lightening and furniture design, all these detailed aspects that form an organic entirety and which are not included in these efforts.
