【摘要】 对三株蓖麻汁液溢泌速率、蔗糖浓度和产量与辐射因子进行相关和回归分析。结果表明汁液溢泌速率（）、蔗糖浓度（△ＲＩ）和产量（ＳＹ）均分别与当天辐照度（Ｒ０）、前一天辐照度（Ｒ－１）和日照长度（ＲＬ）极显著正相关；当天辐照反对溢泌速率影响大；前一天辐照度比当天辐照度对当天白天蔗糖浓反影响较大，而对夜间蔗糖浓度影响较小；蔗糖产量主要取决于溢泌速率；在本实验条件下，溢泌速率、蔗糖浓度和产量与温度条件无相关性。更多还原

【Abstract】 Correlation and regression analyses were made between exudation rate, sucrose concertration and yield and irradiance for three Ricinus plants. The experimental results showed that sap exudation rate(U), sucrose consentration (△RI)and yield (SY)were all significantly positive correlative with the irradiances of the pre cious and the same days, same day irradiances had a greater influence on exudation rate, the previous day irradiance had a greatre influence on the following day sucrose concentration, the same day irradiance had a greater influence on the overning sucrose concentration. Initial exodation rate did not correlate with irradiance following bark was pertly ringed. The sucrose yield was mainly denpendant in exudation rate. Under the experimental conditions, exudation rate ,sucrose concentration and yield did nat correlate with temperature. Based on the above results, the mecha nism of assimite photosynthesis and translocation was discussed correspondingly.更多还原