Physiological and biochemical changes in rosana western wheatgrass seed during seed deterioration 蓝茎冰草种子劣变过程中生理生化变化
2.
( 3 ) wheatgrass could reduce water dissipation by shutting up stoma and let some leaves wither 3 、冰草植株在干旱条件下关闭气孔，以减少水分散失，叶片萎蔫，以减少蒸腾面积。
3.
( 3 ) wheatgrass could control na + transport to upground by withholding na + in root which can keep the balance of ion of upground 3 、冰草植株通过将na ~ +截留在根部，控制na ~ +向地上部分的运输，以维持植株代谢旺盛部位的离子平衡。
4.
( 2 ) wheatgrass could restrain the growth of upground of plants more than that of underground , so the plant could absorb more water and reduced transpiration 2 、冰草植株对地上部分生长的抑制大于对地下部分生长的抑制，这样可以增强根系吸水，较少叶片的蒸腾失水。
5.
The reasons of strong salt resistance had three aspects : ( 1 ) wheatgrass could reduce the potentiality penetration in cell by increasing the osmoregulatotory substance , so the plants could absorb more water by roots 得出冰草植株耐盐有三个原因： 1 、冰草植株能够增加可溶性渗透调节物质，以降低细胞渗透势，保持植株根系吸水。
6.
Prairie grassland accounts for thirty percent of the total area . level and boundless , aneurolepidium , needlegrass and wheatgrass mainly grow there . it has a high quality herbage , making it good pastureland 又称高平原草原，约占呼伦贝尔草原总面积的30 % ，地势平坦，一望无垠。主要草种有硷草、针茅、冰草，牧草质量高，是牛羊最理想的放牧地。
7.
Mongolian wheatgrass is a long - lived perennial grass of the genus agropyron . it is well adapted to the cold , arid conditions of the great plains and its leaves are rich in nutrition , so it is wide ranged in arid and semi - arid area of north of china 冰草属于寿命较长的多年生丛生牧草，抗寒、耐旱性强，营养丰富，是我国北方干旱和半干旱地区改良天然牧草和人工草地的适宜草种。
8.
Both the complicatedness varieties trees , the thick liquid material that the material differs greatly and the remaining leftover bits after wood processing , wood shaving , sawdust , sub thick liquid , cotton stalk , hemp stalk , bush , crudefiber crop , rice wheatgrass , reed , crudefiber crop , many kinds of goods thick liquid board , wasted paper , bagasse , agrimony etc . canbe fasten separated into the good fibre with higher velocity and proper to rub a block of interval 高浓磨对浆料的适用范围较广，无论是树种复杂，材料差异较大的浆料，还是木材加工后剩余的边角料，以及蚀花、锯屑、节子浆、棉秆、麻秆、灌木、枝桠材、稻麦草、芳菲、麻类多种商品浆板、废纸、甘蔗渣、龙须草等，都能够以其料高的旋线速成度及适当磨片间隙分离成优质纤维。
9.
This paper selected two different species of wheatgrasses to research in order to find out the damage and the responses of plants at different stress , some physiological indexes were determined . these results would provide some information to geneticist and breeder who coud make better used of agropyron . the main results were described as follows : firstly , this paper pointed out that effect of peg ( polyethylene glycols ) on some indexes of wheatgrass seedlings 主要通过测定两种冰草植株在不同浓度胁迫下的一些生理指标，了解不同胁迫对植物造成的伤害以及植物对胁迫的反应，为完善植物抗逆机理提供理论依据，并比较两种冰草抗逆性，为内蒙古地区抗逆性强的沙生植物的筛选提供理论依据。
10.
( 1 ) wheatgrass could remove the active oxygen by heightening the activity of the enzymes and protect the plants from damage at light stress . ( 2 ) wheatgrass could keep turgor pressure by osmoregulation and flexibility of cells to maintain plants developing in drought stress , some osmregulatory substance , such as the proline and the soluble sugar , increased 2 、冰草植株在渗透胁迫条件下会增加渗透调节物质如脯氨酸、可溶性糖类以降低细胞渗透势，使其在高渗溶液中仍能够保持一定水分的吸收，植株能够维持生命活动。
