|Title:||豌豆產量生理研究(Ⅲ)莢果大小與乾物質累積性狀||Other Titles:||Studies on the Yield Physiology of Garden Pea (Pisum sativum L.) Ⅲ. Dimensions and Dry Matter Accumulation of the Developing Pods||Authors:||陳阿善
|Keywords:||豌豆;莢果;種子;充實性狀;pea Pisum sativum L.;pod;seed;filling character||Issue Date:||Jun-1997||Publisher:||臺灣園藝學會||Journal Volume:||43||Journal Issue:||2||Start page/Pages:||103-114||Source:||中國園藝||Abstract:||
Pea cultivars Taichung 11, Taichung 12, Sugar Snap, and Dark Skinned Perfection, representing three different types of the crop, were grown in the fall crop of 1988 and 1989. Flowers bloomed at the 20th to 23rd nodes from the base on the same day were tagged and characteristics related to the dimensions and dry matter accumulation of pods and seeds were investigated at intervals for a period of 37-41 days. The development of pods followed the order of length, width, and thickness for alt cultivars. Compared to Sugar Snap and Dark Skinned Perfection, cultivars Taichung 11 and Taichung 12 were quicker in pod length development but slower in pod width and thickness development. With the only exception of Sugar Snap, the dry weight of pod wall of the other three cultivars decreased significantly during pod-filling, indicating redistribution of constituents to the developing seeds. Seed numbers per pod were higher but fresh weight and dry weight per seed were lower for Taichung 11 and Taichung 12 than those for Sugar Snap and Dark Skinned Perfection. Dark Skinned Perfection had the highest fresh and dry weights on a per pod or per seed basis, a result of early occurrence of linear pod-filling and higher filling rate. Analysis by logistic function indicated that the time needed to reach 1/2 maximum dry weight was earlier for whole pods than for seeds, and the time difference was most significant for Dark Skinned Perfection. For both Taichung 11 and Taichung 12 cultivars, the rate in fresh weight increase of pods was higher during the first 3 weeks after flowering and the rate in dry weight increase of seeds was higher between 2 to 4 weeks after flowering.
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