银杏胚乳发育过程中养分积累规律的研究  

Study on the Rule of Nutrient Accumulation during the Development of Endosperm in Ginkgo biloba L.

作　　者：吕雪芹[1] 潘烨[1] 陆彦[1] 王莉[1] 

机构地区：[1]扬州大学园艺与植物保护学院,江苏扬州225009

出　　处：《安徽农业科学》2009年第6期2475-2476,2479,共3页Journal of Anhui Agricultural Sciences

基　　金：扬州大学大学生创新基金(2007)

摘　　要：[目的]研究银杏胚乳发育过程中营养物质的积累规律。[方法]选择银杏核用主栽品种＂佛指＂为试材,对胚乳发育过程中营养成分的变化进行了测定分析。[结果]结果表明,银杏在生长发育过程中,其胚乳的长、宽和单粒重生长表现为盛花期至授粉后60 d生长速度迅速,之后逐渐趋于平缓;胚乳的干物质含量在授粉后50 d迅速增加,至授粉后141 d其含量达到最高值,之后含量略有下降;胚乳中可溶性糖含量在授粉后50 d较高,后出现下降,授粉后95 d至种实成熟又显著升高;胚乳中淀粉含量在授粉后50 d呈现快速上升趋势,至95 d含量增加趋于平缓;胚乳中蛋白质含量在授粉后65 d上升趋势加快,至授粉后110 d含量增加趋于平缓。[结论]银杏胚乳生长发育过程中快速增长期为授粉后65-110 d。[ Objective ] The rule of nutrient accumulation in the process of Ginkgo endosperm development was studied. [ Method ] Ginkgo variety--Fuzhi for the kernel usage being taken as experimental material, the change of nutrient during endosperm development was measured and analyzed. [ Results ] The results showed that the growth performance of the length, width of endosperm and the single-seed weight of Ginkgo was rapid from the full flowering stage to the 60th day after pollination in the process of Ginkgo growth and development, and then it became more and more gentle. The content of dry matter in endosperm was rapidly increased from the 50th day to the 141st day after pollination, and then, slightly decreased. The higher content of soluble sugar in endosperm appeared on the 50th day after pollination ; then, declined ; and finally, significantly increased from the 95th day after pollination to maturity stage. The content of starch in endosperm showed rapid upward trend from the 50th day after pollination, and then, the gentle increment of its content was starting from .the 95th day after pollination. The content of starch in endosperm showed rapid upward trend from the 65th day after pollination, and then, the gentle increment of its content was starting from the 1 10th day after pollination. [ Conclusion] The rapid growth period of Ginkgo endosperm was from 65th - 110th day after pollination.

关 键 词：银杏 胚乳 营养物质 积累规律 

分 类 号：S792.95[农业科学—林木遗传育种]