筇竹种子主要内含物成分与不同种源种子播种品质研究

对筇竹种子主要内含物成分及不同种源种子的播种品质进行了研究。结果表明：1）筇竹种子主要有机养分为可溶性蛋白质、可溶性糖、可溶性淀粉、维生素C和粗脂肪，含量分别为12.54%、8.26%、2.48%、3.81%和12.97%，其中粗脂肪含量最高，可溶性淀粉含量最低；2）筇竹种子中氨基酸含量在0.36~10.50 g/kg，占总营养成分的1.23%~35.78%，其中天冬氨酸含量最高；3）筇竹种子矿质元素含量：钾含量最高，达到3 280 mg/kg，其次是磷，为672 mg/kg，铜的含量最低，为2.14 mg/kg；4）不同种源筇竹种子，在千粒质量、含水量和发芽率方面存在显著性差异，而形态特征上差异不明显；5）在不同环境条件下筇竹种子发芽率不同，其中在室内无菌条件下发芽率最高，为90.00%，在苗圃带菌环境下发芽率最低，为86.66%。

A Study of Ingredients of Qiongzhuea tumidinoda Seeds and Sowing Quality of the Seeds of Different Provenances

The main components of Qiongzhuea tumidinoda seeds and the sowing quality of the seeds of different provenance were studied. The results showed that: 1) The main organic nutrients of Q. tumidinoda seeds were soluble protein, soluble sugar, soluble starch, vitamin C and crude fat, which were 12.54%, 8.26%, 2.48%, 3.81% and 12.97% in content, respectively. The content of crude fat was the highest while that of soluble starch was the lowest; 2) The amino acid content of Q. tumidinoda seeds was 0.36-10.50 g/kg, accounting for 1.23%-35.78% of the total nutrients, and the content of aspartic acid was the highest; 3) Among the mineral element content of Q. tumidinoda seeds, The potassium content was the highest at 3 280 mg/kg, followed by phosphorus at 672 mg/kg and the copper content at 2.14 mg/kg, which was the lowest; 4) Q. tumidinoda seeds of different provenances showed the significant differences in 1 000-grain quality, water content and germination rate, but the differences in morphological characteristics were not obvious; 5) The germination rate of Q. tumidinoda seeds was different under different environmental conditions, which was the highest under indoor aseptic conditions, i.e., 90.00%, while the lowest at 86.66% under the nursery environment.