It has leaf primordia and a shoot apex.
叶特化成为具有锋利尖端的结构。
Ovule primordia are formed in mid-March.
三月中旬，胚珠原体形成。
The stage of secondary and third branches primordia formation ;
第二、三次枝梗原基形成期；
ABA could induce SEN1 gene in Arabidopsis lateral root primordia.
ABA能诱导SEN1基因在拟南芥侧根基部表达。
This is quickly followed by the appearance of the second whorl of stamen primordia.
接着很快出现了第二轮雄蕊原基。
At the appearance of the eighth leaf primordia, SAM formed a bulge and had more cells.
至第八对叶原基产生后，茎端分生组织才稍微隆起，细胞数目增多。
The nectary originates from the several outer layer cells of base of carpel primordia.
蜜腺起源于心皮原基基部外侧的几层细胞。
After 12-14 days, adventitious root primordia developed into young adventitious roots.
大约经12—14天，不定根原基发育为幼小不定根并伸出周皮之外。
Results identified that the adventitious root primordia originated from the vascular cambium cells.
结果表明：试管苗不定根的根原基发生于形成层。
Various parts of the proterogynous flower developed normally. The petal and stamen primordia were homologous.
花的各部分均发育正常，花瓣原基和雄蕊原基同源；
Application of nitrogenous fertilizer to early rice at the ear primordia stage under the triple-cropping system was studied.
对三熟制早稻用氮素化肥作穗肥进行了研究。
Along with the floral meristem development, Ljcyc2 expression increases into the whole dorsal region without carpel primordia.
随着花分生组织的发育，基因表达的区域也在扩大，涵盖了整个的背部区域，但并不包括心皮原基。
The procambium continuously develop to the apex after it arises from the place where the leaf primordia originates from below the apical meristem.
原形成层在顶端分生组织之下叶原基起源的地方发生。
Upon further increase of the exogenous hormone concentration, new ovule primordia could be formed from the proliferated nucellus cells, which further developed into many new ovules.
进一步提高外源激素浓度，珠心细胞又可以分化出新的胚珠原基，进一步长大以后发育成许多新的胚珠。
The number of leaf primordia was affected by both genotype and environment, while the Numbers of bracteal, spikelet and floret primordia were affected mainly by environmental factors.
叶原基数由基因型和环境条件共同决定，而苞叶原基、小穗原基和小花原基数以环境因子的影响为主。
The increase in carbohydrate and soluble protein were necessary in floral initiation, as might be related with synthesis of carbohydrate and enzyme needed in the formation of floral primordia.
各碳水化合物、可溶性蛋白含量的增加为紫苏花芽生理分化所必需。这可能与花器原始体形成所需碳水化合物和酶的合成有关。
The expression pattern and mutant phenotype suggest that the PLA1 gene acting in developing leaf primordia affects the timing of successive leaf initiation and the termination of vegetative growth.
PLA1的表达模式和突变表型表明PLA1在发育中的叶原基中行使功能，影响叶片起始发育的时间以及营养生长的终止。
The expression pattern and mutant phenotype suggest that the PLA1 gene acting in developing leaf primordia affects the timing of successive leaf initiation and the termination of vegetative growth.
PLA1的表达模式和突变表型表明PLA1在发育中的叶原基中行使功能，影响叶片起始发育的时间以及营养生长的终止。
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