CAJ | 학술논문

试验测定了不同生理年龄微型薯的干物质含量、含糖量、淀粉含量及其发芽势,研究了微型薯生理年龄对植株生物量、商品产量及总产量的影响。结果表明,微型薯经过贮藏,含水量逐渐下降,干物质含量上升,淀粉所占比重也有所提高,而含糖量在冷藏条件下上升,在常温条件下贮藏下降。在一定贮藏阶段内,随着时间的延长,微型薯的发芽势逐渐增强,达到一定时间后,发芽势又逐渐下降。生理年龄较老的微型薯播种后出苗快,植株分枝较多,易衰老;生理年龄较短的微型薯播种后出苗晚,主茎少,生长期长。在中原二季作地区由于适于马铃薯生长的气候条件较短,以生理年龄壮龄或较老的微型薯作为种子,结薯个数较多,薯重较大,产量高;而生理年龄较短的微型薯所结薯块个数少,重量较轻,产量低。
시험측정료불동생리년령미형서적간물질함량、함당량、정분함량급기발아세,연구료미형서생리년령대식주생물량、상품산량급총산량적영향。결과표명,미형서경과저장,함수량축점하강,간물질함량상승,정분소점비중야유소제고,이함당량재랭장조건하상승,재상온조건하저장하강。재일정저장계단내,수착시간적연장,미형서적발아세축점증강,체도일정시간후,발아세우축점하강。생리년령교로적미형서파충후출묘쾌,식주분지교다,역쇠로;생리년령교단적미형서파충후출묘만,주경소,생장기장。재중원이계작지구유우괄우마령서생장적기후조건교단,이생리년령장령혹교로적미형서작위충자,결서개수교다,서중교대,산량고;이생리년령교단적미형서소결서괴개수소,중량교경,산량저。
The dry matter,sugar and starch content and germinating potential of minitubers of different physiological ages were analyzed,and effects of minituber physiological age on plant biomass,marketable yield,and total yield were studied.The content of dry matter and starch got high after a long storage period.The sugar got higher when it was stored at 2-4℃,and got lower when it was stored at normal temperature.The germinating potential first got higher and then declined with the extension of storage time.After planting,the physiologically older minitubers generated the plant with more stems and aging early,on the contrary,the physiological younger minitubers generated the plant with less stems and aging late.In the double cropping region of central China,cultivating with strong or a little bit older seed could get higher yield with more and bigger tubers,while cultivating with younger seeds could get lower yield with fewer and smaller tubers.