The accumulating process of the very two main active phytochemical diterpenoids , andrographolid and m - dcoxy - 11 , 12 - didehydroandro - grapholide , had been studied and analyxed , and the results conclude that the best harvest time is the florescence , or earlier florescence of ap (三)种子实验从种子净度、种子千粒重、种子含水量、发芽率、发芽势、红四氮唑法测定种子活力等六个方面考察种子的优良度。
The evolutional trends of the twig , leaf , florescence , tepal and fruits were discussed . 2 . anatomy of both leaf and lemma epidermis micro - morphological characters of leaf epiderm is of 11 species and 1 varities of machilus distribute in zhejiang were examined by lm and sem 叶片表皮结构在光镜和电镜下观察润楠属植物叶表皮结构,结果表明:上表皮无气孔器,表皮细胞(表面观)的垂周壁式样由平直、浅波状和深波状变化。
The main results are summarized as follow : 1 . gross morphology on the basis of field observation and examimation of herbarium specimens , the variation pattern of all the major gross - morphology characters in machilus from zhejiang was studied , and their taxonomic significance was evaluated . the results show that the most reliable characters for the delimitation of species are the features of the leaf , the tepal and the fruits . the secondly important characters are the length and position of the florescence 形态性状分析分析结果表明:润楠属植物的分类性状主要有小枝、叶片、花序、花被片、果实等特征特性,其中花被片、叶片、果实是润楠属的重要分类性状;花序的长度及着生位置也是区分润楠属种间的重要标志之一;小枝的毛被在分类上具有第三位的重要性。
On the whole , the tr and gs of leaf of anthurium andraeanum lind decreased under elevated [ co2 ] and wue increased , these might be beneficial for the increase of pn and chlorophyll as well as accumulation of organic compounds which promoted plant growth and florescence and flower leaf area , furthermore , the improvement of quality 总之, co :加富条件下红掌叶片的气孔导度与蒸腾速率降低,水分利用效率增加,净光合速率提高,有利于碳水化合物的积累,促使红掌的各项生长指标(株高、叶面积、生物量)提高,开花比率提高,佛焰苞面积增大,提前且延长了花期,提高了红掌的观赏品质。
The effects of sub - low temperature ( 10 / 5 ) on the fruit setting ability of the first and second florescence of tomato of 10 different tomato varieties at 3 different seedling stages were conducted in order to evaluating the tolerance ability to low temperature arid the effect of sub - low temperature on reproductive growth 摘要通过对10个不同番茄材料,苗期3个不同阶段进行10 / 5亚低温处理,观察番茄第一、第二花序结果情况,对不同的番茄材料进行耐低温能力评价,探讨亚低温对番茄生殖生长的影响。
We compared the pollination characteristics of c . praecox and that of c . nitens . the results are as follows : ( 1 ) the main variation of c . praecox exists in the floral morphological characteristics , including the variation of the color of the interior perianth segments , the color and shape of the middle perianth segments , the number of pistils and stamens , the length of pistils and degradation of stamens , the floral shape and size , etc . . c . praecox ' s florescence is from november to next march , mainly from december to next february 实验结果表明: ( 1 )蜡梅变异主要存在于花部性状,这些性状包括内被片颜色、中被片颜色和形状、雌雄蕊数目、雌雄蕊变异、花型、花径等,在南京地区,蜡梅的花期从11月到翌年3月,主要集中在12月到翌年2月之间,早花期品种和晚花品种较少。