摘要:
根据农业行业标准NY/T593-2013,对2011-2013年福建省籼稻新品种(包括早、中、晚稻共248份)稻米品质进行分析与评价,研究表明:3种类型籼稻糙米率、糊化温度、胶稠度和直链淀粉等指标优质达标率较高,但是整精米率、垩白度、透明度等指标优质率偏低,尤其是垩白度优质率严重偏低。早、中籼中没有品种达到优质稻标准,晚籼优质米率为6.9%。本文从育种角度提出福建省稻米品质改良遗传重点是垩白性状,要努力降低稻米垩白率和垩白度,同时早、中籼的改良还要注重提高整精米率和透明度的建议。
Abstract:
According to the industrial standard,NY/T593-2013,11 quality traits of the milled grains from 248 indica rice,including early-,mid-and late-season varieties,collected from Fujian Regional Test on Cultivars from2011 to 2013were evaluated.The results showed that a high percentage of the brown rice from the cultivars met or exceeded the standards on quality,gelatinization temperature,gel consistency and amylase content.However,lessthan-desirable quality traits on the percentage of unbroken milled grains and the degree of chalkiness and translucency also existed.Among the varieties,6.9% of the late-season indica rice met the high quality standards,while none of the early-and mid-season rice did.Based on the test results,it was recommended that,in order to develop a desirable,high quality rice,it would be necessary to achieve the characteristics of minimized grain chalkiness,maximized wholesomeness on the milled grains,and desirable translucency of the cooked rice.
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