Scientia Silvae Sinicae ›› 2011, Vol. 47 ›› Issue (1): 56-61.doi: 10.11707/j.1001-7488. 20110109
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Xing Shiyan1, Li Jihong1, Xing Hao2, Zhang Fang1, Han Chenjing1, Tang Haixia1
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Abstract:
The morphological diversity of normal seeds and epiphyllous seeds of 8 Ginkgo biloba var. epiphylla trees discovered in Shandong Province was comparatively investigated. The results showed that: 1) the mature epiphyllous seed had significant sarcotesta,mesdotesta,endotesta,endosperm and collar. The epiphyllous seeds had morphological diversity,and 1-2(15) ovules in various size bore on the leaf apex or margin and the collar was discontinuous. The end of mesdotesta was sharp,erect,or beak-like; the middle line on endotesta lied in micropylar part,and the dark-red endotesta in upper part was atrophy or deletion. The kernel had endosperm,but no embryo. 2) Both seed weight and nut weight of epiphyllous seeds accounted for 1/3 of normal seeds,and the kernel accounted for 1/4 of normal one. The ratio of nut to seed on normal seeds and epiphyllous seeds were 25.23% and 20.16%,respectively,as well as the kernel to nut was 74.26% and 48.91%. This study provided an illustration of the botanic and culture nomenclature of Ginkgo biloba ovule and seed.
Key words: Ginkgo biloba var. epiphylla, epiphyllous seeds, integument, collar, sarcotesta, endosperm
CLC Number:
S718.47
Xing Shiyan;Li Jihong;Xing Hao;Zhang Fang;Han Chenjing;Tang Haixia. Comparative Studies on Morphology of Seeds of Ginkgo biloba var. epiphylla[J]. Scientia Silvae Sinicae, 2011, 47(1): 56-61.
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