田间状况下对烤烟下、中、上三个部位叶片生长发育过程中叶片干鲜比值的变化进行了研究。
The changes of leaf ratio of dry to fresh weight in flue-cured tobacco green leaves during the field growth were studied.
研究了云南保山香料烟产区冬春香料烟和夏季香料烟生长发育期间叶片中总糖含量、淀粉含量和烟碱含量的累积变化规律。
The changes of accumulation of sugar content and nicotine content in leaf of Oriental tobacco were investigated in Baoshan Oriental tobacco growing areas of Yunnan province.
研究植物根、叶片、花器官生长发育的信号调控机制。
Study of the signaling mechanisms in the regulation of plant growth and development.
郑明。光照强度对烤烟生长发育和叶片组织结构及品质影响的研究[d]。长沙：湖南农业大学，2010。
Zheng M. Study on effect of light intensity on growth and leaf tissue structure and quality characteristic of flue-cured tobacco [d]. Changsha: Hunan Agricultural University, 2010.
这两类植物亲缘关系较近，但地理分布、叶片性状、生长发育特性迥异，引种驯化存在较大差异。
Although they are closely related phylogenetically, there are significant differences in leaf traits and geographical distributions between two genera.
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.
研究了月季不同生长发育时期叶片中可溶性蛋白质、过氧化物酶同工酶和酯酶同工酶酶谱的变化。
A study on the electropherogram changes of soluble protein, peroxidase isozymes and esterase isozymes in the leaf blades of Rosa Chinensis in different developing stages was conducted.
每天记录每株玉米的叶片数，不管叶片的大小，作为衡量植株生长发育的方法。
Number of leaves per plant, irrespective of a leaf size and the number of leaves per plant in Haun scale were used as a measure of development of a plant and were also recorded on daily basis.
春玉米的主要生长发育特性为：大田初期株高日增量大，叶片早生快发，生长旺盛；
The main growth and developmental characteristics of spring maize were shown as follows:higher plant height increment per day and exuberant growth of leaves in the early stage;
春玉米的主要生长发育特性为：大田初期株高日增量大，叶片早生快发，生长旺盛；
The main growth and developmental characteristics of spring maize were shown as follows:higher plant height increment per day and exuberant growth of leaves in the early stage;
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