产地及籽粒外观品质对芝麻木酚素含量的影响

Effects of Producing Area and Appearance Quality on Lignan Contents of Sesame Seeds

为了研究产地及籽粒外观对芝麻木酚素含量的影响,为芝麻品质遗传改良及高木酚素芝麻商品生产提供理论依据。从3 800余份芝麻种质资源中选取212份代表性资源,分别在4个不同生态区种植,测定各样品芝麻素和芝麻林素含量;探讨芝麻不同产地、千粒质量及种皮颜色与芝麻素和芝麻林素含量的关系。结果表明,芝麻素和芝麻林素各试点含量均值分别为3.52,3.61,3.11,2.43,1.94,1.93,1.78,1.62 mg/g;芝麻木酚素含量存在随纬度升高而增加的趋势;芝麻籽粒颜色L值与芝麻素含量极显著正相关(r=0.296 6,ɑ=0.01),与芝麻林素含量相关不显著;千粒质量与芝麻素含量极显著负相关(r=-0.260 3,ɑ=0.01),与芝麻林素含量极显著正相关(r=0.227 9,ɑ=0.01)。芝麻素和芝麻林素含量随产地纬度的升高而增加;随着种皮颜色变深,芝麻素含量逐渐降低;随着千粒质量增加,芝麻素含量逐渐降低,芝麻林素含量不断增加。

The purpose of this study was to investigate the effects of producing area and appearance quality on lignan contents of sesame seeds to provide a theoretical basis for genetic improvement of sesame seed quality and producing sesame production with high lignan content. Two hundred and twelve typical sesame cultivars/lines,cho-sen from more than 3 800 accessions of sesame germplasm resources,were simultaneously grown in 4 different eco-logical zones. And the sesamin,sesamolin content,kilo-seed weight and seed-coat color of the 212 seed samples yiel-ded in each area were measured. And the relationships between sesamin and sesamolin content with producing area, kilo-seed weight and seed coat color were analyzed. The average contents of sesamin and sesamolin of four producing areas were 3. 52,3. 61,3. 11,2. 43,1. 94,1. 93,1. 78,1. 62 mg/g,respectively. There exists the tendency of in-creasing lignan contents of sesame seeds with the rising of yielding area latitudes. Furthermore,an extremely signifi-cantly positive correlation was found between seed-coat color L value and sesamin contents（r=0. 296 6,a=0. 01） and no significant correlation was found between seed-coat color L value and sesamolin;an extremely significantly negative correlation was found between kilo-seed weight and sesamin contents（r= -0. 260 3,a=0. 01）and a sig-nificantly positive correlation was found between kilo-seed weight and sesamolin contents（r=0. 227 9,a =0. 01）. The sesamin and sesamolin contents rose gradually with the increase of yielding area latitudes. With the darkening of the seed-coat color from white to black,sesamin content was gradually increased. With the increasing of kilo-seed＆amp;nbsp;weight,the sesamin content was gradually decreased,and the sesamolin content gradually increased.