橱柜
发表于 2025-3-21 18:58:17
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Popcorn
发表于 2025-3-22 00:14:00
Plant Responses to Tropospheric Ozone, pollination of the date palm. A man climbed up a male tree, brought down the inflorescence, and handed it over to the high priest who touched the female inflorescences with it. This ensured a good supply of dates.
LAITY
发表于 2025-3-22 03:59:20
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mosque
发表于 2025-3-22 07:03:02
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GRIPE
发表于 2025-3-22 09:30:28
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Heresy
发表于 2025-3-22 14:38:11
M. B. Renfree,G. Shaw,R. V. Shortigher plants in order to explore their growth potential under in vitro conditions. He carried out extensive investigations with the male and female gametophytes of a number of gymnosperms in aseptic media and showed that these were capable of unusual growth by repeated mitotic divisions of the polle
Heresy
发表于 2025-3-22 19:08:40
Andrew F. Russo,Thomas M. Laniganium, the technique of embryo culture has been employed with the twin objectives of obtaining viable hybrids from normally unsuccessful crosses, and to overcome seed dormancy (Tukey 1938). Despite many years of experimentation, however, embryos at very early stages of development have not proved amen
Senescent
发表于 2025-3-22 21:38:18
Introduction and background informationle fusion between the other male gamete and fusion nucleus. Successful fertilization leads to fruit and seed development. The processes leading to fertilization are initiated on the stigma. Soon after pollination the crucial decision of recognition followed by subsequent acceptance or rejection of t
一夫一妻制
发表于 2025-3-23 03:05:05
https://doi.org/10.1007/978-981-19-0264-2ilization. In flowering plants, on the other hand, the development of nutritive tissue is postponed until after fertilization (triple fusion). The endosperm develops as a result of repeated divisions of the primary endosperm nucleus, and is unique in genetic constitution.
巫婆
发表于 2025-3-23 05:46:05
The Immunology of , Infection in Mice1947; Rappaport 1954; Sanders and Ziebur 1963; Narayanaswami and Norstog 1964; Maheshwari and Rangaswamy 1965; Wardlaw 1965; Degivry 1966; Maheshwari 1966; Raghavan 1966). Some of the general techniques employed in the culture of embryos have been described by Sanders and Ziebur (1963), Raghavan (19