关键词: 粳稻, 粳稻, 不育系, 高温伏旱, 开花习性

Abstract: To analyze the existing problems of land supply side structure in Fukang City, principal component analysis was conducted to construct the comprehensive performance evaluation system land supply side policy in Fukang from the aspect of the structural, economic and equitable benefit. The results showed that the performance of land supply side policy in Fukang fluctuated from 2009 to 2013, but the overall score was good, indicating that the overall implementation effect of land supply side policy was good. In the aspect of land supply structure adjustment, urban land supply structure in Fukang needed further adjustment as the proportion of industrial warehouse space was larger and the proportion of business services and residential land was smaller. In the aspect of economic benefit, the rate of land supply and land open transfer market maintained in a high level, but intensity of land investment was lower. In the aspect of equitable benefit, urban road area per capita, land area of public management and public services per capita and the proportion of affordable house had a certain degree of expansion, but was still in a low level. Finally, to adjust and optimize land structure of land supply side, the countermeasures including optimizing the structure of land supply, focusing on internal potential of stock land, changing the inefficient land use, taking the combination of national economic and social development planning, urban overall planning and urban and rural planning as the guide were proposed to achieve future sustainable development of urban land supply.