空间搭载对芹菜生物量积累及生理特性的影响

Effects of Space Flight on Biomass and Physiological Characteristics of Celery

以空间搭载的中国芹菜种子为试材,以未搭载的芹菜种子为对照,采用2因素完全随机设计方法,研究比较了温室栽培条件下搭载与常规芹菜种子的生物量、叶绿素、丙二醛、可溶性糖、可溶性蛋白及脯氨酸含量等生理指标的变化。结果表明:搭载处理的芹菜种子的生物量与对照相比均有不同程度的增加,其中2个处理的株高极显著高于对照(P<0.01),各处理总干重极显著高于对照(P<0.01),搭载处理的芹菜叶面积和对照间差异极显著(P<0.01);搭载处理的芹菜叶片中的丙二醛、可溶性糖、可溶性蛋白、脯氨酸含量高于对照;叶绿素含量和对照相比差异明显。生长前期3个指标间的差异较小,随着生育期的推进,后期叶绿素a和叶绿素b的差异变大,叶绿素a受空间射线影响较为敏感。

Taking Chinese celery seeds with space flight as the test materials, celery seeds without space flight as control, using completely randomized design of two factors, the change of greenhouse cultivation of biomass, and conventional celery seed chlorophyll,MDA,soluble sugar, soluble protein and proline content physiological index were compared and studied. The results showed that the biomass of treatment by space flight had a higher level comparing with CK （P〈0. 01）. Two treatments in plant height were significantly higher than those in the control group （P〈0. 01）. Dry weight extremely significantly increased comparing with CK. Leaf area in control were significantly lower than treatments （P〈0. 01）. There were obvious differences in MDA, soluble sugar, soluble protein, proline and chlorophyll between treatments and CK. Prophase chlorophyll a, chlorophyll b and chlorophyll had little differences. Late in process of breeding it made a great difference between chlorophyll a and chlorophyll b. Chlorophyll a was sensitive to space-ray.