Wheat root activity and nitrate reductase of green manure in intercropping increased 57.95% and 87.56% than that in single cropping, resp., with the differences at significant level.
间作系统中小麦根系活力和绿肥硝酸还原酶分别较单作增加了57.95%和87.56%，差异达显著水平。
The growth of root was promoted, and increased in root top ratio value and activity of root under moderate water stress (water content of soil is 60% the content of field holding water).
适度的水分胁迫（土壤含水量为田间持水量的60％）对苗期小麦根系生长有一定的促进作用，可使根冠比增加，根系活力增大；
TDC activity was highest in young leaves, the following were mature leaves, root and bark sequently. (3) During the period of shading, TSB activity firstly decreased, and then increased.
TDC在幼叶中的活性最高，其次依次为成叶、根和树皮。(3)在遮荫处理过程中，TSB活性先下降后上升。
With the getting rid of leaves or flowers, the content of soluble protein and the activity of SOD and POD in roots were all increased, so the root senescence was delayed.
无论减源还是减库，均可增加根系中可溶性蛋白含量，提高SOD、POD活性，延缓根系的衰老。
In the late stage of flue-cured tobacco growth, under the same level of leaf number, leaf NR activity and root activity increased and then decreased with the increase of nitrogen application.
烤烟生长发育后期，同一留叶数条件下，叶片NR活性、根系活力随着施氮量的增加呈先升高后降低的趋势；
In the late stage of flue-cured tobacco growth, under the same level of leaf number, leaf NR activity and root activity increased and then decreased with the increase of nitrogen application.
烤烟生长发育后期，同一留叶数条件下，叶片NR活性、根系活力随着施氮量的增加呈先升高后降低的趋势；
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