花粉
- 与 花粉 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Results showed that the pollen xenia had obvious effect on fruit setting rate, fruit weight, soluble solids content, titratable acidity and mature seeds.
结果表明:京白梨果实在坐果率、成熟种子数、单果重、可滴定酸、可溶性固形物等方面表现明显的花粉直感现象。
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Based on the Duncan's multiple range test, there was obvious difference in all above mentioned fruit quality index among the fruit received from different pollinators, indicating the distinct pollen xenia for plum.
经Duncan多重比较分析,黑宝石李的坐果率、单果质量、纵横径、可溶性固形物、果实形状等方面不同品种授粉以及与自然授粉存在显著或极显著差异,表现出明显的花粉直感现象。
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This paper made a systematic research on Lonicerafulvotomentosa Hsu et S.C. Cheng, which grows well inkarst areas, from its biological characteristics, such asmorphology, growth and physiology. The main conclusions asfollows:(1)From the viewpoint of morphological anatomy, it hastypical xerophyte structures such as well-developed epidermisand tissues that transport water effectively, small leaf area,dense floss under the leaf surface, high stoma density, thesmall opening degree, thick cuticle, well-developed xylem andpalisade tissues, etc. The pollen of L. fulvotomentosa isseems to be spherical, and has 3 grooves, much bulge on theepidermis evenly. The shape of pollen is an important featureon taxonomy. The ripe fruit has from 1 to 18 seeds, some fruitbranch has 135 berry, its diameter is up to 0.8 centimeter.(2)From the viewpoint of growth, L.
本文从形态解剖、生长发育的节律、光合生理特性以及种子萌发生理等生物学特性方面对喀斯特适生经济植物黄褐毛忍冬进行了较为系统的研究,得出以下结论:(1)在形态解剖上,黄褐毛忍冬根茎中含有发育良好的周皮和输导组织,导管密度大,横截面宽,周皮的形成具有节制蒸腾、通气作用和保护组织免受外界环境影响的作用,宽的导管对水分的输导效率高;叶片密被绒毛,面积较小,气孔密度大、开度小,厚的角质层和发育良好的木质部和栅栏组织等是典型的旱生结构;黄褐毛忍冬花粉近球形,具3 孔沟,表面具均匀分布的小刺,刺间具网状纹理。
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Objective: To study the pollen morphology of ten species of Achillea .
中文摘要:目的:研究 10种蓍属Achillea植物的花粉形态。
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The pollen morphology of ten species of Achillea was examined with LM and SEM.
对 10种植物的花粉进行了光镜和扫描电镜的观察。
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Sepal 5, fu covers with tiles shape is arranged, chang Sucun, corollaceous bell form, funnel form, tall foot butterfly form or earthen jar form, brim ministry is shallow 5 crack or deep 5 crack, rotate when bud or tweezers closes account; Staminal 5, on canister of move unripe Yu Guan, hide inside or appear, pollen bead does not have thorn or aculeate, on ovary, often be a cup of shape or surround for flower disc place of dissension, 1-4 room, every room contains 1-2 bead ovule, style 1-2, post is not cracked or 2 crack, rare 3 crack, or 2-4 is cracked.
萼片5片,覆瓦状排列,常宿存,花冠钟形。漏斗形。高脚蝶形或瓮形,檐部浅5裂或深5裂,芽时旋转或镊合状;雄蕊5枚,着生于冠筒上,内藏或外露,花粉粒无刺或有刺,子房上位,常为杯状或为分裂的花盘所包围,1-4室,每室含1-2粒胚珠,花柱1-2个,柱头不裂或2裂,稀3裂,或2-4裂。
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A study of the pollen morphology of medicinal species of Adenophora.
标题 沙参属药用种植物花粉形态的研究。
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A study of the pollen morphology of medicinal species of Adenophora.
Title 沙参属药用种植物花粉形态的研究。
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The application value of alloplasmic lines and the two new CMS-patterns were evaluated from various aspects,the possible reasons of cytoplasmic variation and the relativity degenerative pattern of pollen grain and the fertility behavior were discussed
从不同侧面评价了异质系及新不育系的利用价值,讨论了细胞质变异的可能原因及花粉败育类型与育性恢复性能的相关性。
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Sucrose and H3BO3 were essential for pollen germination of Alnus formosana.
蔗糖和硼是台湾桤木花粉萌发的必要条件
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力