| 摘要: |
| 对不同采收期、不同贮藏温度和贮藏时间的超甜(sh2)、普通甜(sut)和加强甜(su1se)玉米杂交种以及大田玉米杂交种的还原糖含量、蔗糖含量、水溶多糖(WSP)含量以及水分含量等进行分析发现,在甜玉米类型中 sh2杂交种在各个采收期总糖含量都是最高,su1se次之,su1最低。但 su1的 wsp 含量最高,su1se 与之接近,sh2最低,与普通玉米相同。以糖分和水分为根据,认为普通甜玉米的合适采收期为授粉后18～26天,积温为306.2℃～420.2℃,加强甜玉米可以适当放宽,但超甜玉米合适采收期应在授粉20天之后。三种甜玉米在28℃下贮藏,糖分和水分含量都迅速降低,但超甜玉米有较强的保鲜能力。在4℃条件下贮藏一周,普通甜玉米和加强甜玉米糖分含量只降低10%,超甜玉米虽然降低了25.8%,但含糖量还保持在35%以上,说明低温贮藏对保持甜玉米的优良品质是十分重要的。 |
| 关键词: 甜玉米 基因型 采收期 贮藏温度 蔗糖 水溶多糖 |
| DOI： |
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| THE EFFECT OF DIFFERENT GENOTYPES,HARVEST TIME,STORAGE TEMPERATURE AND PERIOD ON SWEET CORN QUALITY |
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| Abstract: |
| The content of reducing sugar,sucrose,WSP,and moisture of super sweet (sh_2),conveational sweet(su_1),enhanced sweet(su_1 se),and field corn hybri ds was analysed.It was found that,among genotypes(except field corn),sh_2 hybrids possessed the highest total sugar content at each harvest time;su_1 se ranked the 2nd,su_1 was the lowest.On the contrary,the WSP content of su_1 was the highest,sh_2 was the lowest,su_1 se laid in between but closely resembled to su_1.Based on the sugar and moisture content,It was ... |
| Key words: sweet eorn genotype harvest time storage temperature sucrose WSP |
