主藕、整藕和子藕作种的繁殖效果

研究了主藕、整藕、子藕3种繁殖方式对莲藕生长发育的影响。结果表明:3种繁殖方式对莲的生长影响不大,但以子藕作种,植株前期和中期生长最快。3种繁殖方式莲的生长动态表现为:6月中旬以前,浮叶变化幅度不大,立叶缓慢增长,6月中旬至7月中旬,浮叶和立叶都快速增长,立叶于8月上旬达最大值,比浮叶晚15～20d左右,立叶整个生长动态呈S型曲线变化。3种繁殖方式均不影响莲藕的熟性,对地下茎(藕)的影响差异不显著,皆可用作繁殖,其中以子藕作种用量最少。

Study on Propagating Material of Lotus

Effect of propagating material such as lateral rhizome, leader rhizome and whole rhizome on lotus growing was studied. It indicated that: The effect of the three propagating materials on lotus growing was not significant. Lotus grew faster than the others when the leader rhizome was used seed rhizome. The growth and development of the three propagating materials were given below; The increasing of the number of emersed leaves was few before mid-June. The numbers of emersed and standing leaves increased fast between mid-June to mid-July, The numbers of standing leaves reached the maximum in early-Augest, 15 -20 d later than that of the emersed leaves. The growth curve of the standing leaves presented as 'S'. The three propagating materials, which all could be used as propagating, had no effects on lotus maturity. The effect of the three propagating materials on the rhizome was not significant. The amount of seed rhizome was the lowest when the lateral rhizome was used. The propagating materials of using the lateral rhizome is worth spreading.