6种落叶栎类种子形态特征和营养含量之差异  

Comparing Study on Seed Morphological Characteristics and Nutrient Contents Among Six Deciduous Oak Species

作　　者：唐晓倩[1] 刘广全[2,3,4] 王华田[1] 李庆梅[5] 刘艳[3,6] 胡金鑫[4] 

机构地区：[1]山东农业大学林学院,山东泰安271018 [2]中国水利水电科学研究院,北京100048 [3]国际泥沙研究培训中心,北京100048 [4]西北农林科技大学,陕西杨陵712100 [5]中国林业科学研究院,北京100091 [6]北京林业大学森林培育与保护教育部重点实验室,北京100083

出　　处：《国际沙棘研究与开发》2013年第1期21-27,共7页

基　　金："十一五"国家科技支撑计划(2006BAD09B06;2006BAD03A0308);水利部"948"项目(200207);林业公益性行业科研专项(200804022B-3)联合资助

摘　　要：以6种北方落叶栎类种子为实验材料，对同一生长条件不同落叶栎类种子的形态特征和营养成分含量的差异进行比较。结果表明：不同落叶栎类种子的长度、宽度、体积和种子百粒重以及可溶性蛋白含量、可溶性糖含量和淀粉含量差异极显著。不同树种落叶栎类种子长度、宽度和体积变化分别为19．01～23．48mm、11．64—17-3Imm和1．54—4．13mL，百粒重平均值为258．90g，可溶性蛋白、可溶性糖和淀粉含量分别为4．48—18．19mg／g、111．325～291．407μg／g和19．323％-31．194％；不同落叶栎类种子百粒重与宽度、体积、宽度，长度呈极显著性的正相关，种子的长度与可溶性糖含量呈显著的正相关。影响落叶栎类种子品质的主要性状是种子的长度、宽度及种子百粒重。In this study, the seed morphological characteristics and nutrient contents of six deciduous oak species are compared. The results show that, the length, width, volume, 100-seed weight and the content of soluble sugar, starch and protein among the different deciduous oak species are obvious dif- ferent. The length, width and volume of the seeds are 19.01-23.48mm, 11.64-17.31mm and 1.54- 4.13mL, respectively. And the mean 100-seed weight of all deciduous oak species is 258.90g. The contents of the soluble protein, sugar and starch are 4.48-18.19mg/g, 111.325-291.407gg/g and 19.323%-31.194%, respectively. There are obviously positive correlation 100-seed weight and seed width, volume, width/length, and there is obviously positive correlation between soluble sugar and seed length. The results of the principal component analysis show that the main characters effects the seed quality are seed length, width, and 100-seed weight.

关 键 词：落叶栎类 种子 形态特征 营养成分 

分 类 号：S791.22[农业科学—林木遗传育种]