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研究了高产条件下去除小穗对小麦穗粒数、千粒重和穗粒重的影响。结果表明，去除１～３个小穗，小麦的千粒重和结实率同步提高，穗粒重补偿性增长，平均增加７％～１０％；８个供试品种的千粒重皆因去小穗而增加，且存在增长极限。各品种的千粒重和穗粒重最大增长幅度均与粒重成负相关，说明８个小麦品种（系）皆为“源”限制性品种（系）。
The effects of spikelet removal under high yield conditions on spikelets per spike, grain weight per spike and grain weight per spike were studied. The results showed that the removal of 1 ~ 3 spikelets, grain weight and seed setting rate of wheat simultaneously increased, the grain weight compensatory growth, an average increase of 7% to 10%; 1000 grain weight of the eight tested varieties are due to spikelets to increase, And there is growth limit. The 1000-grain weight and the maximum grain-weight growth rate of each variety were negatively correlated with the grain weight, indicating that all 8 wheat cultivars (lines) were “source” restricted varieties (lines).