沈阳农业大学学报2011，Vol.42Issue(4)：399-405,7.
水稻齐穗期冠层温度分异及其相关特性的研究
Canopy Temperature Difference and the Related Characteristics at Heading Stage in Rice
摘要
Abstract
The canopy temperature difference and related characteristics were studied through observing surface temperature of stalk and leaf, stomata and yield characters of different rice varieties (lines) under three conditions: sunny day with water, sunny day without water and at night with water. The results showed that there was obvious temperature difference among different genotypes. Rice canopy temperature had significant difference: warm-temperate, cold-temperate and mid-temperate types under different weather and soil moisture; Canopy temperature with water in field was in generally lower than that without water, and it was lower at night than in daytime. The canopy temperature of two types discrepancy was 0.1-2.3℃ on average in the situation of having water in sunny day. While without water the discrepancy was 0-6.7℃ on average, and it differ 0-1.4℃ when having water at night. Compared with cold-temperate type rice. Stomatal length and width of warm-temperate type larger, while stomatal density and transpiration rate were lower. Generally speaking, the yield of warm-temperate step was higher than that of that of cold-temperate type varieties, but not significant, and the diversity among yield components were not obvious. The brown rice rate, milled rice rates and amylose content of cold-temperate type rice were higher, chalky grain rate and chalkiness were lower, milling and grain appearance qualities were above normal, there was no inconspicuous regularity among other rice guality characteristics.关键词
水稻/冠层温度/气孔/产量/品质Key words
rice/ canopy temperature/ stomata/ yield/ quality分类
农业科技引用本文复制引用
高继平,韩亚东,王晓通,赵晓彤,马作斌,徐海,张文忠..水稻齐穗期冠层温度分异及其相关特性的研究[J].沈阳农业大学学报,2011,42(4):399-405,7.基金项目
教育部博士点专项基金项目(20092103110005) （20092103110005）
公益性行业(农业)科研专项经费项目(200903003) （农业）
沈阳市科技计划人才培育项目(1091179-1-00) （1091179-1-00）
