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利用14 C同位素示踪技术研究了冬小麦越冬期间的光合特性及其对冬小麦生长发育的影响。结果表明 ,越冬期间的冬小麦能够吸收、同化14 CO2 ,并进行转运 ;其同化产物的 60 %用于越冬期的呼吸消耗 ,约 40 %用于返青后的生长发育 ,其中少量的光合产物参与了穗部产量的形成。
The 14 C isotope tracing technique was used to study the photosynthetic characteristics of winter wheat during winter and its effect on the growth and development of winter wheat. The results showed that during the winter, winter wheat could assimilate and assimilate 14 CO2 and transport it; 60% of its assimilation products were used for respiration during wintering and about 40% for the growth after retting, with a few photosynthetic products involved Spike yield formation.