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研究了沪紫黑糯1号在7种不同采收期(即授粉至采收分别为16、18、20、22、24、26 d和28 d时)的性状指标变化。结果表明:不同采收期处理对穗长、穗粗、出籽率、百粒重4个性状都有显著影响。适宜采收期是授粉至采收20～24d,最佳采收期是授粉至采收22d左右,此时沪紫黑糯1号的穗长、穗粗、单穗重、出籽率、百粒重、糯性和鲜食品质总评分分别为17.3cm、5.3cm、258.4g、67.45%、36.35g、17.0分和92.5分,鲜果穗完全转色,乌黑发亮。
The changes of the traits of Shanghai purple black waxy 1 in seven different harvesting periods (ie pollination till harvest at 16, 18, 20, 22, 24, 26 d and 28 d) were studied. The results showed that the treatments of different harvest time had significant effects on four traits, including panicle length, ear diameter, seed yield and 100-grain weight. Appropriate harvesting period is pollination to harvest 20 ~ 24d, the best harvesting period is pollination to harvest about 22d, this time Shanghai purple black waxy spike length, ear thick, single spike weight, seed yield, 100 The total score of grain weight, waxiness and fresh food quality were 17.3cm, 5.3cm, 258.4g, 67.45%, 36.35g, 17.0 and 92.5 respectively.