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31. In the first hours after fertilization, this cell divides into identical totipotent cells.

32. Blastula and gastrulae arrived 1 and 4 d after fertilization.

33. Sperm must be diluted and treated during artificial insemination and in vitro fertilization.

34. Fertilization didn't significantly affect fine root diameter for Manchurian ash and Davurian larch fine root.

35. The changes and functions of mitochondria during the process of fertilization membrane(Fm) formation in Scylla paramamosain were investigated by transmission electron microscope.

36. The day of full opening of the flower very likely is the day of fertilization.

37. For instance, technologies such as test-tube baby, artificial fertilization and in vitro fertilization, and cloning have drawn a lot of attention.

38. The objective of this study was to explore a method to increase the fertilization rate of bovine oocytes matured in vitro by the microinjection of a single immotile spermatozoon.

39. The study on effect of hybrid Pennisetum with different fertilization treatments pulped and fed to fattening pigs was conducted by 4 treatments, each with 3 replications.

40. In vitro, the acrosome reaction of sperm does not influence the ovum fertilization rate.

41. Biological Defense fertilization, organic bio - fertilizer, bio - bacterial manure production sales.

42. During the process of fertilization a zygote with the diploid set is produced.

43. This paper deals with the ultrastructural changes in sunflower (Helianthus annuus L. ) embryo sacs before and after fertilization with particular emphasis on the wall change events.

44. This last division and the expulsion of the second polar body occur only after fertilization.

45. These data indicated that the effect of antisera to the zona pellucida would mainly block fertilization and interfere early embryo development, but exists individual differences.

46. A preliminary observation on the double fertilization and post - fertilization development of Ypsilandra thibetica Franch.

47. A control lever runs through a lower fertilizer passage below the fertilization box, with the upper end provided with a raised head which reaches an exit inside the fertilization box.

48. The special formation of fertilization cone and the cortical reaction occurring immediately after the sperm penetration into matured egg support the effective and reliable barrier for the monospermy.

49. Conclusion The first polar body position does not significant influence the normal fertilization and embryo development.

50. In the plots of chemical fertilization, rice-duck farming, and the control, Theridiidae, Clubionidae and Salticidae shared the highest niche width, respectively[sentencedict.com], with a value of over 0.80.

51. The turf characters of carpet grass (Axonopus compressus (Sw. ) Beauv) in winter were studied under different irrigation and fertilization treatments.

52. A pot experiment in greenhouse was conducted to study on influence of N, P and K fertilization on young citrus tree growth and fruit yield and quality during 1999 to 2001.

53. Approximately four days after fertilization and after several cycles of cell division, these totipotent cells begin to specialize.

54. " Micromanipulation of Sperm" uses microscopic instruments to guide the sperm into the egg to increase the chances of fertilization.

55. This paper describes the phase characteristic of soil organic matter and fertilization system in the salt-affected area of Quzhou Experimental Field.

56. This paper studied the fertilization of the hybrid between autotetraploid sorghum and Johnson grass and the genetic characters of the hybrid generation.

57. Cortexes possess cortical alveoli. Cortical reactions have taken place after fertilization.

58. It controlled the watering irrigation, fertilization, ventilation, volume, operation of curtain in greenhouse under the relevant control devices.

58. Sentencedict.com try its best to collect and build good sentences.

59. This paper dealed with the effects of P fertilization and ectomycorrhizal fungal inoculation on productivity and nutrient accumulation of Eucalyptus globulus plantation in Chuxiong, Yunnan.

60. Gametophytic self - incompatibility ( GSI ) is a widespread mechanism in flowering plants , which prevents self - fertilization and promotes outcrossing.