篇名 | EMBRYOLOGICAL STUDIES IN AMARANTHUS LEUCOCARPUS S. WATS |
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卷期 | 19:2 |
作者 | K.T. Sebastian 、 B. D. Deshpande |
頁次 | 148-156 |
關鍵字 | Scopus 、 TSCI 、 SCIE |
出刊日期 | 197408 |
Embryological observations in Atnaranthus leucocarpus indicate absence of a distinct endothecium. Small globules occur beneath the tapetal cells. The pollen are shed at the thee-celled stage. The ovule is amphitropous, a clear space is present between the two integuments and nucleus. Embryo sac development is of the polygonum type. Antipodals persist till about the 4-celled stage of the endosperm. The radicular apex is established by the late globular stage of the embryo. Shoot apex differentiation commences by the torpedo stage of the embryo.