leaf age

Leaf number on main stem of wheat is an important sign of growth and develop-ment age.

小麦主茎叶数是器官建成生长发育年龄的重要标志。

It is easy to differ droopy leaf seedling from erect leaf ones at 3rd leaf age 18 days after seeding.

播后18天3叶期可准确区分披叶苗与直叶苗。

Application of panicle fertilization at the2nd leaf-age from top increased the grain filling rate at late grain filling stage and shortened the time of superior grain filling.

倒2叶期施肥在一定程度上增强了籽粒灌浆后期的灌浆速率，缩短了强势粒的灌浆时间。

After 75 days , the nicotine content decreased with leaf age.

而烟叶钾含量随着叶龄的增大在不断降低.

After that, the nicotine content decreased with leaf age.

中 、 下三个部位的烟碱与烟叶钾含量均呈负相关关系.

The main factors influencing the wheat yield in downland were initial nitrogenous dressing, the amount of nitrogenous fertilizer applied for differ-ent leaf age and close fertilization.

对模型进行解析，找出了影响五区小麦产量较大的因子是氮基肥、不同叶龄追施氮肥和密度。

Studies on the relation between panicle initiation and leaf age in Maize

玉米穗分化与叶龄关系的研究

Effect of short-day treatment on NSO and SSR of indica rice was lest in 6 leaf age for 10 days.

6叶龄20d短日照处理对籼稻品种南农大的穗粒数和结实率的影响最小。

The changes of gl with leaf age was discussed also.

本文还讨论了gl随时龄的变化。