以饲用玉米品种科多8号（多蘖多穗型）、普通玉米泰玉2号（多蘖单穗型）和郑单958（无蘖单穗型）为试验材料，研究了不同类型玉米在不同生育阶段刈割后再生分蘖的干物质积累产量及其对品质的影响。结果表明：拔节期刈割主茎后饲用玉米品种科多8号单株分蘖数有所增加，泰玉2号和郑单958单株分蘖数均降低；大喇叭口期刈割显著增加了科多8号和泰玉2号的单株分蘖数，降低了郑单958的单株分蘖数。拔节期和大喇叭口期刈割后3个品种分蘖的干物质积累量均表现为科多8号＞泰玉2号＞郑单958，并且3个品种均是大喇叭口期刈割处理＞拔节期刈割处理＞不刈割（对照）。刈割大大提高玉米子粒的粗脂肪和粗蛋白含量，改善了玉米子粒的品质，并且能够增加玉米鲜秸秆的产量，缓解了畜牧业饲料来源不足的问题。

The effects of cutting caulis on dry matter accumulation, regeneration and quality at different stages of three maize cultivars, Keduo 8(multi-axillary buds and multi-spikes), common breed Taiyu 2 (multi-axillary buds and single spike), and common breed Zhengdan 958(none-axillary bud and single spike) were investigated. As a result, when cutting caulis at jointing stage, the number of tillers per plant increased a little for Keduo 8, while for Taiyu 2 and Zhengdan 958 it decreased. Tillers per plant increased remarkably when cutting at booting stage either for Keduo 8 or Taiyu 2, as for Zhengdan 958 it reduced. Dry matter accumulation for the tillers of all three cultivars appeared Keduo 8>Taiyu 2>Zhengdan 958, and it seemed that cutting caulis at booting stage (treatment 2)>cutting caulis at jointing stage (treatment 1)>no cutting (contrast) of all the three cultivars. Grain crude protein and crude fat content increased greatly, and so, grain quality was improved. This study provided a theoretical and practical way for fresher yield in order to alleviate the tension of scarcity of fodder consequently.

国家科技支撑计划（2006BAD02A09）、农业行业项目（nyhyzx07-003）、山东省农业良种产业化项目