8个种源香椿种子性状及芽苗菜产量和品质比较

对8个种源香椿Toona sinensis种子的物理性状、发芽率、芽苗菜产量及其营养成分进行了分析.结果表明:①不同种源香椿种子的长度、宽度、千粒质量存在P＜0.05水平上的显著差异,含水量和发芽率存在P＜0.01水平上的极显著差异;芽苗菜的长度、产率、可溶性蛋白质质量分数、游离氨基酸质量分数存在P＜0.01水平上的极显著差异,单株鲜质量和维生素C质量分数也存在P＜0.05水平上的显著差异.②种子发芽率对芽苗菜产率和芽苗菜维生素C质量分数有极显著影响(P＜0.01),种子千粒质量与芽苗菜氨基酸质量分数、芽苗菜长度、芽苗菜鲜质量存在极显著的正相关关系(P＜0.01),芽苗菜的游离氨基酸质量分数与可溶性蛋白质质量分数存在极显著的负相关关系(P＜0.01).③陕西旬阳种源的种子芽苗菜产率最高,单位质量种子可生产9.23 g·g-1芽苗菜.成都种源芽苗菜可溶性蛋白质质量分数较高,石家庄和泰安种源芽苗菜游离氨基酸质量分数较高,遂宁和泰安种源芽苗菜维生素C质量分数较高.图1表3参9

Comparison of eight Toona sinensis provenances for seed properties,sprouting vegetable yield,and sprout nutritional components

Seed physical properties,seed germination rate,sprouting vegetable yield,and sprout nutritional components of eight provenances of Toona sinensis seeds were tested using indoor experiment.Results showed：（1） significant differences among provenances for seed length（P = 0.036 8）,seed width（P = 0.025 8）,seed water content（P = 0.002 9）,thousand kernel weight（P = 0.020 0）,and seed germination rate（P 0.000 1）.Significant differences were also found for sprout yield（P 0.000 1）,soluble protein content of sprouts（P = 0.002 6）,amino acid content of sprouts（P = 0.003 7）,and Vitamin C content of sprouts（P = 0.034 0）.（2） Seed germination rate have significant positive correlation with sprout yield（r = 0.692 8,P 0.000 1） and Vitamin C content of sprouts（r = 0.480 9,P = 0.000 6）;thousand kernel weight had a significant positive correlation with amino acid content of sprouts（r = 0.434 8,P = 0.002 3）,sprout length（r = 0.531 3,P = 0.000 1）,and weight per sprout（r =0.473 5,P = 0.000 8）;and content of soluble protein of sprout had a significant negative correlation with content of amino acid of sprout（r =-0.705 6,P0.000 1）.（3）For high sprout yield,the best provenance was Xunyang with an average of 1 g of seed producing 9.23 g of sprouts.The best provenances were Chengdu for high soluble protein content,Shijiazhuang for amino acid content,and Sui-ning for sprout vitamin C content.