不同收获时期对超级稻沈农014主要稻米品质影响

以沈农014为试材,根据不同抽穗天数进行收获,研究水稻不同收获时期对产量和主要稻米品质的影响。结果表明,过早收获,稻谷的含水量较高,千粒重相对较低,严重影响了产量。从加工品质来看,过早收获对糙米率和精米率影响较小,对整精米率影响较大,过晚收获也会使整精米率下降。从稻米外观品质来看,过早收获使垩白粒率和垩白度增加。从营养和食味品质来看,收获期对蛋白质含量的影响不大,但对直链淀粉和脂肪酸影响较大,对食味值的影响则无明显规律。确定沈农014在9月30日至10月10日达到最佳收获期。

Effect of Harvesting Time on Quality of Super Rice Variety, Shennong 014

An experiment was conducted to study the effect of harvesting time on the yield and quality of Shennong 014,a super rice variety.The results showed that too early harvest of rice led to much higher water content in grain,lower 1000-grain weight and yield.As for processing quality,the effect of too early harvest on brown rice rate and polished rice rate was less,but great on head rice rate.Too late harvest also led to the decrease of head rice rate.To appearance quality,too early harvest resulted in higher c...