The results showed that the fourth treatment remarkably increased the rate of vegetative growth and improved chlorophyll content ; the fourth and the third treatments could reduce the harmfulness of elevated temperature ; according to different of resistance , " yx52 " was stronger than " gh611 " and " kk581 " was the weakest of all 结果表明，处理4对植株营养生长及提高叶绿素含量效果最为显著；处理4与处理3能缓解高温对大花蕙兰植株生长的不利影响。
The promotion effects is stronger with the increase of number of photoperiods , which suggests that the flowering process in salicornia bigelovii torr . is not a " all or none " process . treated with 13 - 18 photoperiods and then transposed to long - daylength ( 17h light / d ) , some of the inflorescences of the plants reversed to vegetative condition , which means flowering reversion occurred ( which belongs to inflorescence reversion type ) 毕氏海蓬子开花的临界日长为15小时，济南地区最大昼长在6月23日，为14小时40分，并没有超过其临界日长，但处于自然日照条件下的毕氏海蓬子直至7月25日才形成花序，在此之前一直处于营养生长状态，可能这个阶段是成花物质积累的阶段，当成花物质数量积累足够多时，才可促进花序形成和导致开花。
It indicated that not only can spirulina cells grow photoautotrophically and photomixtrotrophically , but also can grow heterotrophically under some specific conditions . light intensity , light quality , temperature , species and concentration of metals , rare earth elements and vitamins , salinity , cell concentration , dissolved oxygen level and magnetic filed etc . , all play important roles in photosynthetic performance and cell productivity of spirutina 认为螺旋藻细胞不但能进行光合自养和混合营养生长，而且在某些特定的环境条件下，还能进行异养生长；光照强度、光质、温度、金属元素、稀土元素、盐度、藻体细胞浓度、溶氧水平、维生素、激素和磁场等环境因素对螺旋藻细胞的光合性能和细胞产率都有显著影响。
Most grow best and form pycnidia earlier on ma , and pda is slightly not fitful for pycnidia growth of the kind of fungi . none of the species can produce ascocarps in 60 days . esterase isoenzymes of 12 strains of rhytismataceae were studied by polyacrylamide gel electrophoresis and clustering analysis of upgma and 12 strains were classified into 4 groups when correlation coefficient is 3 . 1 结果表明大多数种在ma平板上菌落营养生长最好，产生分生抱子器及分生抱子的时间较早、能力较强； oa也是可选择的培养基之一：而p a较不适宜于该类菌物的营养生长和分生抱子器产生。
The results showed that the temporal dynamics of predatory natural enemy community in cotton fields could be classified into seven types and the change of the community could he divided into three major stages of formation and development period ( in the vegetative growth stage of cotton ) , great prosperity period ( in the vegetative and reproductive growth stage of cotton ) and decline period ( in the reproductive growth stage of cotton ) 结果表明，棉田捕食性天敌群落的时序动态可以分为7种类型；演变可以分为形成和发展阶段（棉花营养生长期） 、鼎盛阶段（棉花营养生长和生殖生长并进期） 、衰退阶段（棉花生殖生长期） 3个主要阶段。
The production of wheat is increased by 9 . 6 % under sewage irrigation ; ( 2 ) . dry matter and leaf area index of the wheat is much higher during nourishment growth stage , while dry matter and leaf area index of the wheat under fresh treatment is significant lower during productive growth stage ; ( 3 ) . heave metal from swage enriched in the soil stratum in the depth of 0 - 30 cm , and the root length under sewage treatment is larger than that under fresh treatment . 田间试验表明，在相同试验条件下，污水灌溉与清水灌溉相比： ( 1 )污水灌溉可使冬小麦增产9 . 6 ； ( 2 )作物地上部干物重和叶面积指数，在营养生长阶段清水灌溉比污水灌溉值高，而在生殖生长阶段清水灌溉比污水灌溉值明显降低； ( 3 )污水中营养物质主要富集在0 30cm土层中，在该土层中污水灌溉的小麦根量比清水灌溉的显著增多。
The results showed the silage corn keduo 8 laid particular stress on vegetable growth , it had larger lai and higher biomass , there were bigger changed range between lai and biomass ; the dual purpose corn shandan 310 laid particular stress on reproductive growth , it had smaller lai and lower biomass , there were a littler effect of density on lai and biomass 结果表明，青贮型玉米科多8号偏重于营养生长，其叶面积指数、干物质积累量大，二者随密度的变化其变幅较大；粮饲兼用型玉米陕单310偏重于生殖生长，其叶面积指数、干物质积累量较小，密度对其影响较小，耐密植。
