Seed science also has increased yields by 30 percent or more since 2000.
自2000年以来，种子科学也使产量增加了30%或更多。
Seed science
原声例句
VOA Special 2022年6月合集
英语百科
Seed
![Brown flax seeds](/Images/godic/202502/10/Brown_Flax_Seeds4908.jpg")
![Stages of seed development:
I Zygote
II Proembryo
III Globular
IV Heart
V Torpedo
VI Mature Embryo
Key: 1. Endosperm 2. Zygote 3. Embryo 4. Suspensor 5. Cotyledons 6. Shoot Apical Meristem 7. Root Apical Meristem 8. Radicle 9. Hypocotyl 10. Epicotyl 11. Seed Coat](/Images/godic/202502/10/Seed_Development_Cycle.svg4908.png")
![Plant ovules: Gymnosperm ovule on left, angiosperm ovule (inside ovary) on right](/Images/godic/202502/10/Ovule-Gymno-Angio-en.svg4908.png")
![The inside of a Ginkgo seed, showing a well-developed embryo, nutritive tissue (megagametophyte), and a bit of the surrounding seed coat](/Images/godic/202502/10/Ginkgo_embryo_and_gametophyte4908.jpg")
A seed is an embryonic plant enclosed in a protective outer covering. The formation of the seed is part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiosperm plants.
Seeds are the product of the ripened ovule, after fertilization by pollen and some growth within the mother plant. The embryo is developed from the zygote and the seed coat from the integuments of the ovule.
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- Ross, Sir David
- Ross,Sir James Clark
- Ross,Sir John