2，4-表油菜素內(nèi)酯、聚谷氨酸、烯效唑?qū)Ω适韷K根產(chǎn)量 及品質(zhì)的調(diào)控

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中圖分類號：S324 文獻(xiàn)標(biāo)識碼：A 文章編號：1000-4440（2025）06-1072-08

Abstract：In order toevaluate theefects of diferent growth regulators on the tuber yieldand qualityof sweet potato， two sweet potato varieties，Xushu18andLongshu9，wereusedas experimentalmaterials，and water was sprayedascontrol （CK）.Differentconcentrationsof uniconazole（S3307），2，4-epibrassnolide（EBR）and polyglutamicacid（PGA）were sprayedontheleaves，andtheeffctsof diferentconcentrationsand types of growthregulatorsontheyieldandqualityof sweet potato were analyzed.The results showed that the yieldof Xushu18 andLongshu 9 treated with O.05 mg/L EBRwas 58.86% and 52.68% higher than that of CK， respectively. The soluble protein content，total phenol contentandflavonoidcontentintubersofXushu18treated with105mg/LPGAincreasedby 62.60% ， 86.49% and 63.64% ，respectively，compared with CK. The total solu

ble sugarcontent，starch content，soluble proteincontent，vitamin Ccontent，anthocyanin contentin tuberskinandanthocyanin content in tuber flesh ofLongshu9 treated with 105mg/L PGAwere all significantly higher than those of CK. Starch content in tubersof Xushu18andLongshu9treatedwith75mg/LS3307wassignificantlyhigherthanthatof theCK.Soluble sugar content in tubers of Xushu 18 and Longshu 9 treated with 1OO mg/L S3307 increased by 37.48% and 65.27% ， respectively.Insummary，theappropriateconcentrations ofS33O7，EBRandPGAcansignificantlyimprovetheyieldand qualityindicatorsofXushu18andLongshu9，buttherearegreatdiffrencesintheimprovementefectofyieldandquality indicatorsof diferentvarietiesofsweet potatounder thesame growth regulatortreatment.Inproduction，specific growth regulation types and dosages should be selected according to product requirements.

Key Words： sweet potato；growth regulators；chemical regulation；yield；quality

甘薯［Ipomoea batatas（L.）Lam.]是重要的糧食作物和飼料作物，營養(yǎng)價值高，適應(yīng)性廣[1]。（剩余11578字）