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2010-08-30 15:21
SEX IN PLANTS
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53- And has sent down water from the sky. With it have We produced diverse pairs of plants.
20-Ta-He, 53
3- ...And fruit of every kind He made in pairs two and two.
13-The Thunder, 3
During the time of the Prophet, biology was not a developed science and the system of reproduction of plants was not known. Differentiation of sex in plants was to be a later discovery. The concept of the production of diverse pairs of plants as stated in the Quran 1400 years ago is very meaningful.
Most species of plants exhibit features of sex, namely, the production of specialized sex cells or gametes and the fusion of these cells in pairs, called fertilization. In flowering plants, the gametes are produced within the flowers. In the female portion, the egg of the plant forms a bulge: this is the ovum with its small and round seeds. Sperm is produced within the pollen tubes and then is carried by wind or insects or other agents from the pollen-producing organs of the flower to the stigma of the pistil. Inside the pistil are ovules, within each of which a female sex cell (egg) is produced. The fertilized egg develops into the embryo of the seed, and the ovule eventually becomes the mature seed. The pollen grain with its tube and contents is the male gametophytes of a flowering plant, and the central tissue (embryo sac) of the ovule with its egg constitutes the female gametophytes of a flowering plant.
hur kunde man komma på att växter va hanliga och honliga
Defiitnion från wikipedia
Blommande växter
Vissa blommande växter har hanliga och honliga individer, men de flesta har hanliga och honliga könsorgan i samma blomma. Pistillen är det honliga organ som är placerad i blommans mitt rakt ovanför blommans fruktämne vari finns många fröämnen. Pistillen omges av en krans av ståndare i vars ståndarknappar det bildas mikrosporer, som omvandlas till pollenkorn. Dessa bärs på olika sätt, exempelvis genom pollinerande insekter eller med vinden, till pistillens övre del, märket. Från märket växer kanaler, pollenslangar, ner till fröämnena. Härifrån bildas frön, som utvecklas till nya plantor.
och när de nämner att förökar sig genom att vinden sprider pollen , men kolla, Gud har redan informerat om det i koranen
FERTILIZING WINDS
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22- And We send the winds to fertilize....
15-Hijr, 22
