不同穗型水稻群体中温湿度特征的研究

本研究以不同穗型的3个品种沈稻11、辽粳294和沈农9816为试材，研究了水稻群体间的温湿度特征。结果表明，白天不同品种水稻群体中温度和相对湿度的变化趋势与大气一致。水稻群体中露点温度的脉动远大于温度和相对湿度，总的趋势是中午露点温度较高。不同水稻群体中温度的差异小于湿度。从8月上旬至9月中旬，不同品种群体中的温、湿度差异逐渐增大，弯穗品种群体中的温度低于直立、半直立穗品种，湿度大于直立、半直立穗品种，直立和半直立穗品种之间的差别不太大。

Characters of Temperature and Humidity in Colony of Rice Cultivars with Different Type

In order to study the characters of temperature and humidity in colony of rice cultivars with different type, using 3 cultivars as materials (Shendao-11, Liaojing-294, Shennong-9816), the temperature and humidity in colonies of different types of rice were analyzed. The result indicated that among the different rice cultivars colonise of rice varieties, the diurnal variation of the temperature and humidity is consistent with the atmosphere. The pulsatile change of dew point in colonies was bigger than that of temperature and humidity. The variational current of dew point was high at noon. The difference of humidity is much larger than the difference of temperature in rice colonies. The difference of temperature and humidity in colonies of rice cultivars were gradual augmentation from the first ten days of August to the middle ten days of September. The temperature in colony of curved panicle cultivar was higher than that of erect and semi-erect panicle cultivars from August to the middle ten days of September. But the humidity in colony of curved panicle cultivar was lower than that of erect and semi-erect panicle cultivars at the same period. The distinction of temperature and humidity in colonies were unconspicuous between the erect and semi-erect panicle cultivars.