中国农业科学 ›› 2006, Vol. 39 ›› Issue (12): 2415-2421 .

• 作物遗传育种·种质资源 • 上一篇    下一篇

关于拉面品质的小麦高分子量谷蛋白亚基评分系统研究

康志钰,王建军,尚勋武   

  1. 云南农业大学农学与生物技术学院
  • 收稿日期:2005-08-29 修回日期:1900-01-01 出版日期:2006-12-10 发布日期:2006-12-10
  • 通讯作者: 康志钰

Establishing the Score System of HMW-GS on Hand-extended Noodle Score Indexes in Wheat

  1. 云南农业大学农学与生物技术学院
  • Received:2005-08-29 Revised:1900-01-01 Online:2006-12-10 Published:2006-12-10

摘要: 【目的】研究有关拉面品质的小麦高分子量麦谷蛋白亚基(HMW-GS)评分系统,提高优质拉面用小麦品种的选育效率。【方法】选用100个春小麦品种,分别测定其HMW-GS以及拉面色泽、表观状态、适口性、韧性、粘性、光滑性、食味和总评分等8项拉面评分指标,并通过数量化理论及统计学鉴评方法,研究HMW-GS与拉面评分指标的关系。【结果】亚基1、2*、N、7、7+8、17+18、22、2+10、2+11、2+12、5+10、10的拉面品质总评分分别为5.40、5.35、0、2.55、2.56、9.19、0.05、0.15、1.49、1.14、10.00、5.14。针对拉面评分指标与HMW-GS得到的评分系统包含8个多元线性回归方程(R2>0.98)。利用HMW-GS组成,能够对8个拉面评分指标进行准确预测。【结论】经综合评价,认为优质拉面小麦理想的亚基组合应为1、17+18、5+10组合或2*、17+18、5+10组合,在拉面小麦品种选育中可做为早代选择的依据;2+10、2+11和2+12亚基对拉面品质的作用普遍较低,为劣质亚基,在拉面小麦品种选育中应尽量避免出现这些亚基。

关键词: 小麦, 高分子量麦谷蛋白亚基, 拉面, 评分指标, 评分系统

Abstract: As the shortage of the score system of HMW-GS formerly, 100 spring wheat varieties were selected to study the relationship between HMW-GS and hand-extended noodle score indexes in wheat by quantity theory and statistics estimation. Eight multiple regression equations could be used to forecast the eight hand-extended noodle score indexes, because the determination coefficient were all upwards of 0.98. The score system of HMW-GS on hand-extended noodle score indexes was established in wheat. The HMW-GS 1, 2*, 17+18, 5+10 and 10 were good quality subunits for hand-extended noodle, HMW-GS 5+10 could improve all of the hand-extended noodle score indexes, HMW-GS 1 could improve the color of hand-extended noodle. The role of HMW-GS 17+18 was as most same as HMW-GS 5+10. So, noodle wheat should possess the HMW-GS 1, 17+18 and 5+10. HMW-GS 2+10, 2+11 and 2+12 were the worst subunits for hand-extended noodle.