CAJ | 학술논문

以铁杂17号高粱为试验材料,研究了不同播期对高粱子粒淀粉含量的影响.结果表明:高粱子粒总淀粉、支链淀粉、直链淀粉含量和支链/直链淀粉比值随子粒灌浆过程推进均呈不断上升趋势,至成熟期达到最大值.其中,Ⅳ播期总淀粉、支链淀粉含量和支链/直链淀粉比值最高,为76.9%,69.1%和8.77;Ⅲ播期直链淀粉含量最高,为8.49%.适时晚播(沈阳地区在5月10～20日)可提高高粱子粒总淀粉、支链淀粉含量和支链/直链淀粉比值.改善占占质.高粱灌浆期气候因子的温度指标对淀粉积累具有重要影响,灌浆期间适宜淀粉积累的日平均温度为19.5～20.5℃.
이철잡17호고량위시험재료,연구료불동파기대고량자립정분함량적영향.결과표명:고량자립총정분、지련정분、직련정분함량화지련/직련정분비치수자립관장과정추진균정불단상승추세,지성숙기체도최대치.기중,Ⅳ파기총정분、지련정분함량화지련/직련정분비치최고,위76.9%,69.1%화8.77;Ⅲ파기직련정분함량최고,위8.49%.괄시만파(침양지구재5월10～20일)가제고고량자립총정분、지련정분함량화지련/직련정분비치.개선점점질.고량관장기기후인자적온도지표대정분적루구유중요영향,관장기간괄의정분적루적일평균온도위19.5～20.5℃.
The Effect of sowing dates on the starch contents in grains of sorghum hybrid "Tieza 17" was studied. The results showed that total starch, amylopectin, amylose contents and amylopectin/amylose ratio increased continuously along with the advance of grain filling process and reached the maximum at maturity stage. Total starch, amylopectin contents and amylopectin/ amylose ratio in Ⅳ sowing date were the highest, 76.9%, 69.1% and 8.77 respectively; amylosc contents in Ⅲ sowing date were the highest, 8.49%. Suitable late sowing (May 10th to 20th in Shenyang) promoted the increase of total starch, amylopectin contents and amylopectin/amylose ratio, improving sorghum grain quality. The air temperature had a significant impact on starch accumulation during sorghum grains filling, and 19.5～20.5℃ was suitable daily mean temperature for starch accumulation.