不同移栽群体和水分调控对水稻分蘖成穗的影响

为了控制水稻无效分蘖的发生，提高水稻的成穗率，采用盆栽实验，对比了不同的水稻移栽群体下不同的水分控制对水稻分蘖动态、成穗率、营养生长状况、根系活力的影响。结果表明：采取控蘖措施后，双本移栽、深水控蘖较单本移栽、搁田控蘖分蘖增长率减少了3.79%~7.06%，叶片中叶绿素含量也相对稳定，根系活力高出5.25个单位和5.95个单位，根系伤流强度提高29.04%和21.17%，最终成穗率比分别提高了9.09%和10.53%，双本移栽较单本移栽能更好的控制无效分蘖的发生。双本移栽、深水控蘖更有利于提供水稻较好的营养生长，控制无效分蘖的发生、提高成穗率。

The Effects of Different Transplanting Groups and Water Control on Formation of Spike from the Tillers in Rice

In order to Controlling the non-effective tillering of rice, improve the ear bearing rate, using potted plant, compared the influence on the tillering dynamics, the ear bearing rate, vegetative growth, root activity with different transplanting groups and water control. The results showed that: after take the measures of tiller control, compared double-plant transplanting, deep water tillering to single-plant transplanting and tiller control by drainage the growth rate of tillering reduced 3.79%-7.06%, Chlorophyll Content in leaf is stability, root activity increased by5.25 and 5.95 units, roots bleeding intensity increased by 29.04% and 21.17%, improved the ear bearing rate by 9.09% and 10.53% compared with tiller control by drainage, in controlling the non-effective tillering of rice double-plant transplanting was better than single. Double-plant transplanting, deep water tillering control could provide better vegetative growth, controlling the non-effective tillering and improve the ear bearing rate in rice.