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一、试验目的 近年来国外在花卉植物的辐射诱变工作中已取得一定的成绩,如德国在菊花、仙客来方面,美国在石竹、金鱼草方面等已取得了花色和花形上有观赏价值的突变体。本试验的目的是观察电离辐射对翠菊(Callisterhus chinensis Nees)生长的影响,取得具有观赏价值的辐射突变体,并进一步探讨保持优良突变体的条件。 二、试验方法和经过 1962年3月下旬用Υ射线处理“星蓝驼羽”翠菊种子一批。试验组合有8个,即处理剂量为50、200、500、1,000、2,000、5,000、10,000和20,000伦琴等。每个组合用种子10克。处理种子在室内放置20天,于4月20日在苗床条播。各组合按处理剂量的大小顺序衔接,各组合间相距30厘米。在各个组合中行距为15厘米。由于行内出苗过密,于5月下旬至6月中旬结合除草间苗3次,定株时,株距为15厘米。生长期间管理一般,未采用任何特殊措施。
First, the purpose of the experiment In recent years, foreign radiation plants in the mutagenesis work has made some achievements, such as Germany in the chrysanthemum, cyclamen, the United States in the Dianthus, Snapdragon has made the flowers and flowers have ornamental value Of the mutant. The purpose of this experiment was to observe the effects of ionizing radiation on the growth of Callisterhus chinensis Nees, to obtain ornamental radiation mutants, and to further investigate the conditions for maintaining superior mutants. Second, the test method and after the end of March 1962 with γ ray treatment “Star Blue Turtle Plumeria” aster seed. There are eight experimental combinations, ie doses of 50, 200, 500, 1,000, 2,000, 5,000, 10,000 and 20,000 Roentgen. 10 grams for each combination. The seeds were placed indoors for 20 days and sown on seedbed on April 20. Each combination according to the size of the treatment dose convergence, the distance between the various combinations 30 cm. The line spacing in each combination is 15 cm. Due to the emergence of the line is too dense, in late May to mid-June combined weed seedlings 3 times, when plants, plant spacing of 15 cm. During the growth management in general, did not use any special measures.