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題名 | 菸草種子成熟度對後代菸葉質量影響之研究=The Effect of Maturity of Seeds on the Yield and Quality of Tobacco |
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作者 | 張恩雨; | 書刊名 | 中華農學會報 |
卷期 | 50 民54.06 |
頁次 | 頁38-41 |
關鍵詞 | 菸草; 菸葉質量; 種子成熟度; |
語文 | 中文(Chinese) |
英文摘要 | The writer's investigation on the method of tobacco seed production indicated that the ripeness of the seed greatly effected the yield and germinating percertage. However, the seeds from different degrees of maturity on the leaf yield and quality in their progenies is not known. The present paper reports the results of such a study. The tobacco variety used in this study was Hicks. Five different maturities of seeds depending upon their external appearence were studied, they are: A: Capsules and seeds are still green in color. B: Capsules are green while the seeds in capsule are brownish. C: Capsules are brownish and seeds become dark brown. D: Capsules are dark with the peduncle green. E: Capsules and its peduncle are all dark brown. The results indicate that the weight of seeds per capsule and germinating percentage are the highest in C treatment, the yields of both unripe (A and B) and overripe (D and E) treatments are all decreased and their germination ability tends to be lowered. For progeny test, a randomized block design with 4 replications was used in the field experiment. The plot size was 15 square meters, with 30 plants in each plot. The tobacco plants were one meter apart between rows and spaced ? meter in the row. The 1957 and 1958 results are as follows: The living plant percentage of seedlings in the field are significant difference among treatments, the A treatment is higher than the other four treatments, however, the other four treatments are no different. These results are the same in both years. The leaf, yield and quality are found no significant differences among all maturity degrees of seeds both in 1957 and 1958. This indicates that the various degrees of ripeness of tobacco seeds on one flower head have no influence on the subsquent yield and quality of their progenies. |
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