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单词 Pollination
例句
1. Without sufficient pollination, the growth of the corn is stunted.
2. The grapes begin to form, after natural pollination, during the months of June and July.
3. The absence of the bumble bee meant that pollination had to be carried out artificially, using an electronic vibrating rod.
4. In spring and summer last year, pollination of the runner beans was generally poor.
5. The other limiting factor in relation to flower pollination and fruit setting is weather.
6. To ensure adequate pollination select at least three varieties that pollinate each other.
7. Objective To evaluate the pollination characteristic on Chinese bellflower.
8. Predominantly outcrossing, wind pollination might be the main reasons of low genetic differentiation between families.
9. The prophase pollination effect of C. megacephala was better than the anaphase.
10. In pollination test of two kinds of lilies, the burliness quantity from mother plant of Prato lily were great, but...
11. Many flowers are capable of self-fertilization if pollination fails, and a few species do it regularly.
12. Entomophilous flowers depend on the pollination of insects, and at the same time, plants provide pollen and honey as rewards.
13. The pollination is intra-population cross pollination but still belongs to generic self-pollination.
14. The seeds from pollination of heated pollen were far less than that of unheated pollen in hybridization test of Nove Cento lily and Prato lily.
15. The pollen vitality and property of pollination and fruiting among different single of Wild Cherry Plum(Prunus divaricata Lbd) were tested.
16. Many species of tree depend on the wind for pollination.
17. It would therefore appear that the ensuring of successful pollination must override the importance of losses due to seed predation.
18. They are of great importance not only as food for birds and mammals, but also in pollination and recycling of nutrients.
19. Several cultigens are similarly flexible, e.g. coconut, in that pollination is thereby ensured in both open and closed habitats.
20. To this end, some developers use plants like rice and safflower that self-pollinate, reducing the risk of contaminating nonpharma plants by wind and insect pollination .
21. During the Paleocene there was a great deal of coevolution of plants and animals , the plants evolving adaptations to animal pollination and fruit and seed dispersal.
22. The paper introduced the coordination experiment results on white Elm provenance and family, which are carried on the 155 open pollination materials from 11 superior provenances for two year's study.
23. Variations of flower color are related to gene mutation and pollination pattern and so on.
24. The great impact of the differences of the receptible period of stigmas and pollen viability between the two species on effective pollination and seed setting rate is discussed.
25. The sterile plant with multiple stigmas had a high outcrossing percentage of seed setting because its multiple and long stigmas enlarged the area of pollination.
26. The difference should be discernible in the time of flowering and pollination in orchards.
27. The accumulation trend of total provitamin A showed linear curve,[Sentencedict] and it reach to the highest value in the 27th day after pollination.
28. Meanwhile, the commercial beekeeping industry is struggling to provide pollination services to the nations' farmers.
29. The cross-compatibility between cultivated rice and 6 diploid and tetraploid wild rice species was studied by means of artificial pollination.
30. The results oft-test showed that there was significant difference of the seed plumpness between the artificial pollination seeds and the spontaneous pollination.
31. Flower anatomy and pollination test showed Armeniaca mume in Da'yi had a higher reproductive capacity and kept some characters of the wild species.
32. Apomixis was evaluated based on comparison of seed setting rates between treatments of pollination with emasculation, bagging and removal of stigma.
33. In the case of the common fig the flowers are all female and need no pollination.
34. The correlations between fly pollination and the diclinous sexual systems, and between fly pollination and plants with small greenish yellow flowers were also discussed.
35. As flowering plants move out of step, or "desynchronise", with normal seasons, serious problems may emerge with the pollination of the plants involved.
36. For the Californian beekeeper, the pollination season begins in February.
37. Early archegonial development is already evident two weeks after pollination.
38. Self-pollen tube growth could be promoted by treating stigma with CTX, but the pollen tube growth was inhibited by treating stigma with PTX before cross pollination.
39. It helps to promote cross - pollination and is often combined with self - incompatibility.
40. Based on the results of emasculation, bagging and artificial pollination studies, Cistanche deserticola Ma takes selfing as the main breeding system.
41. Most currants have self-fertile flowers, but a few cultivars are partially self - sterile, so set more fruits with cross- pollination.
42. In thermogenic plants, heat released by AOX attracts insects for pollination by heating aromatic compounds .
43. The results showed that burliness capabilities varied with different pollination methods for lily.
44. About weeks after pollination, the tip cells of nucellus broke and secreted liquid into ovular canal, which promoted pollen movement to the nucellus and played important role for pollen germination.
45. Every orchid has a petal modified for pollination, some theatrically so.
46. Supplemental mass - pollination can substantially increase the seed yields in many cases.
47. An internal connection exists among floral characters, the behavioral responses and structual modifications of the pollinator insects, pollination mechanism, and the fitness of entomophilous plants.
48. In Beijing area the double fertilization of Actinidia chinensis occurred 30 - 72 ho - urs after pollination.
49. The research was conducted during 1978-1981 to study the effect of distant pollination combined with hormone treatment on sorghum distant hybridization and apomixis.
50. Pollination insects limit the evolutionary mode of the entomophilous flower. An internal connection exis...
51. Some cultivars which were cross pollination had the ability to parthenocarpy at present.
52. The pollination and fertilization of 'Banndainiitaka' were systematically examined by fluorescence microscopy and paraffin sectioning.
53. The process is called "sporulation, " which is different from pollen's pollination.
54. After all, insects didn't begin to play a major role in pollination until about sixty-five million years ago, and plants have been around for about three hundred million years.
54. try its best to collect and build good sentences.
55. Unlike honeybee Apis mellifera, bumblebee Bombus lucorum have different pollination behavior on greenhouse tomato.
56. Pollination limitations were obvious in both populations due to the lack of enough outcrossing pollinators .
57. Fruits and embryos were obtained by self - pollination of Avignon and Lilium brownii.
58. After pollination one synergid degenerates and one synergid still exists during the ellipsoidal embryo stage adegeneration.
59. The medium pollen is dipped by a cotton swab or a brush pen and applied to the female parent tobacco flower column head for artificial pollination.
60. The reader that has read Darwinian memoir knows, darwin is special to orchid care, down to costs 8 months, for its progenitive strategy wrote a treatise " the pollination of orchid " .
61. The one of reason that D1, D2 could set fruits well without pollination was the activities of POD and IAA oxidase decreased quickly after anthesis same as the normal fruits with pollination.
62. The activity of self-compatible line was significant higher than self-incompatible line after pollination.
63. Cross-pollination is the main pattern, but the highest ripening rate was spontaneous pollination of Polygonum capitatum Buch. -Ham.
64. To pollinate ( a flower ) by means of cross - pollination.
65. It is a plant of allogamy and its pollination relies on honey bee mainly, honey bee visiting was influenced by its genetics and environment.
66. All of these results could be provided the basic references for studying the burliness rate and controlled pollination of bamboos.
67. A small wasp belonging to the family Agonidae, especially Blastophaga psenes, that breeds in caprifig and is active in the pollination of fig trees and shrubs.
68. Self - pollination, and subsequently self - fertilisation, in orchards always takes place to some extent.
69. Clearing a surround to the orchard, will significantly reduce background pollination to very low levels.
70. The content of fruit protein in parthenocarpy line D-11 was 59% higher than that of non-parthenocarpy line S8 on the pollination day.
71. Self - pollination, and subsequently self - fertilization(/pollination.html), in orchards always takes place to some extent.
72. Zingiberaceae plants are highly diverse in species, morphology and anatomic structure as well as in pollination.
73. Seed set could be found out both in cross and self-pollination(different individuals within one cultivar ) plants, while 1000-seed weight was lower in self pollination.
74. One - third of the food Americans eat depends upon honeybee pollination.
75. About 4 weeks after pollination, the tip cells of nucellus broke and secreted liquid into ovular canal, which promoted pollen movement to the nucellus and played important role for pollen germination.
76. With 6 different genetic background and high pure upland cotton lines as female parents, the variation of allogamous affinity and main traits of hybrid boll were analyzed under assisted pollination.
77. The experiment indicates: About 12-24 hours after pollination, sugarbeet has finished emination, zygote is in dormant state.
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