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seed plants相关的网络例句

查询词典 seed plants

与 seed plants 相关的网络例句 [注:此内容来源于网络,仅供参考]

Especially the seed that that emperor plants, function and transmission pattern are similar dandelion, but configuration and some kind is acaleph and same, have a lot of wispy claw.

尤其是那个圣树的种子,功能与传播方式类似蒲公英,但形态和某种水母一样,有很多飘渺的爪。

Seeds of Ailanthus altissima Swingle were treated with 60Co γ-rays at the doses of 0, 30, 50, 75, 100, 150 and 200Gy, the effects of irradiation on seed germination and seedling growth were studied. The results showed that irradiation inhibited germination, and decreased the survival rate and the growth of plants.

以椿树种子为材料,用60Coγ射线进行了0、30、50、75、100、150和200Gy辐照处理,研究辐照对椿树种子发芽及幼苗生长的影响,以期获得耐盐突变体。

Any of several other plants or their edible seed or fruit, such as buckwheat or grain amaranth .

荞麦其它植物或其可食用的种子或果实,如荞麦或苋属作物

The water extracts of the aboveground parts of 31 plants belonging to 13 families were used in the seed germination experiment of the major weed Ligularia sagitata and the herbage Elymus nutans in alpine and cold grassland in order to screen the plants that could inhibit Ligularia sagitata.

用13科31种植物地上部分的水浸液0.05g DWmL^(-1对高寒草场主要杂草箭叶橐吾和同域牧草垂穗披碱草进行种子萌发实验,旨在筛选能够抑制箭叶橐吾的植物种类。

Of the T〓 CaMVBT transgenic plants, the normally-growing plants showed two kinds of pollen fertility and seed-setting ratio under long-day condition. 62. 9% of which showed poorer pollen fertility, smaller, thinner seeds than those of untransformed regenerant control and that seeds were nonviable.

2自然启动子调控的rolB转基因农垦58S中,少数T〓代单株表现植株较矮小、茎杆细、叶片有卷曲或皱缩、生长势减弱、可育条件下败育等与CaMVBT转化的T〓代部分单株相似的表型。

79Cm and 3. 78cm from M,, M2 to M3 respectively which cannot reach 1/3 height of the control averagely. The seedlings irradiated by 80 X1015 NYcmgave birth to some flower buds without floral shoots and their seed setting rate was lower than that of control obviously. Some M3 plants irradiated by 60X1015 NVcm2grow into bunches which did not appear in M, and M2. Moreover, some phenotypic variations could be inherited stably in subsequent generations. For instance, the dwarf character in the plants treated with the dose of 80 X1015 was stable in inheritance in consecutive three generations.

再次,对不同剂量的低能N~+处理的拟南芥的M_2代试管苗的叶片外植体愈伤组织的诱导和耐盐性进行了比较和分析,发现经不同剂量的低能离子处理的M_2代试管苗的叶片外植体,离子处理影响其出愈率,高剂量处理会抑制愈伤的诱导,但低剂量离子注入对愈伤组织的增殖有一定的促进作用;愈伤组织的耐盐性也与剂量相关,低剂量的耐盐能力比对照的低,但是高剂量处理反而提高愈伤的耐盐性,这间接表明低能离子引起了拟南芥的生理状态的变化,产生了生理效应。

But the various plants with many stalks, growing from one or several roots, the different kinds of grasses, the climbing plants and the creepers spring all from seed or from slips.

但是,各种植物有许多秸秆,从一个或几个根源,不同种类的草,在攀援植物和食人族春季全部来自种子或从单。

Vegetative agriculture is a kind of productive system, which concentrates mainly on the production of vegetative organs such as stems and leaves of plants including herbages, green fodder, vegetations, flowers, teas, tobaccos, as well as rhizome and fibre crops. The principal difference between the traditional agriculture and vegetative agriculture is that the former focuses on the productivity of the seed in the whole growing period and the latter focuses on the productivity of available nutrients at the different growing stages of plants.

中文题名高寒地区营养体农业的原理与效率研究副题名外文题名 The efficiency and the principle of vegetative agriculture in alpine region of Qinghai-Tibetan plateau of China 论文作者贠旭疆导师胡自治教授任继周院士学科专业草业科学研究领域\研究方向学位级别博士学位授予单位甘肃农业大学学位授予日期2002 论文页码总数153页关键词高寒地区营养体农业籽实农业营养体作物馆藏号BSLW /2003 /S181 /1 营养体农业是指以收获作物茎、叶等营养器官为主要目的的农业生产系统,如牧草、青饲料、蔬菜、花卉、茶叶、烟草、根茎类及纤维作物等农业生产系统。

Seed germination and seedling growth at low temperature, and plant growth in winter cultivated in open-field were much improved in transgenic plants compared to WT plants.

转化株在低温下的种子发芽率、扦插苗生长以及植株露地越冬生长状况等方面都明显优于对照。

One hundred and thirty four families, 578 genera and 1197 species are recorded in this area. According to the information of historical geology and natural conditions, the composition of seed plant flora and the areal-types of genera were analyzed. The results showed that its origin was rather ancient and its geographical compositions were complicated. There were many species of rare and endangered plants, e.g. Taxus chinensis var. mairei, Bretschneidera sinensis, Emmenopterys henryi, Fokienia hodginsii, Torreya grandis, Phoebe bournei, Ormosia henryi, and so on. Most of these plants had high value in economics and scientific research. According to statistics and analysis of genera in the present flora, 578 genera were divided into 14 areal-types. The ratio of tropical and temperate genera was respectively 48.6% and 49.2%, so its flora was characterized by transitional floristic elements, and in wide connection with the world.

该地区植物种类丰富,共有野生种子植物134科、578属、1197种;根据地史资料和自然条件,通过对种子植物种类的组成和分布区类型的分析,认为该区系起源古老,区系成分复杂;珍稀特有植物多,如南方红豆杉、钟萼木、香果树、福建柏、榧树、闽楠、花榈木等大量古老树种,并且绝大多数具有重要的经济价值和科研价值;区内578属可分为14个类型,热带和温带分布的属分别占48.6%和49.2%,具较明显的南北过渡的现象,与世界各地有广泛的联系。

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