[Objective] The variation of sugar, acid and AsA contents in fruits of ‘Ganmi 6＇ kiwifruit （Actinidia eriantha Benth） were investigated during fruit develop- ment. [Method] Kiwi fruits were randomly taken as mater...[Objective] The variation of sugar, acid and AsA contents in fruits of ‘Ganmi 6＇ kiwifruit （Actinidia eriantha Benth） were investigated during fruit develop- ment. [Method] Kiwi fruits were randomly taken as materials every 15 days since 20 days after full bloom （DAFB） to 170 DAFB until in mature stage. [Result] The results showed that during fruit development of ‘Ganmi 6＇, the total sugar soluble contents had a rising trend with relatively stable at 95 DAFB, then rose until har- vest with the maximum content （10.35%）. The titratable acid content showed a trend of increasing, then declining, then increase to the harvest content （1.10%）. From the sugar acid ratio, we can knew it decreased in 95 DAFB, then up to the max （9.38）. The changes of AsA contents showed double ‘S＇ shape, decreased af- ter the first increased rapidly, slightly increased and then decreased in the early harvest. [Conclusion] It provided a theoretical basis for scientific cultivation methods to explore the nutrients regulation.展开更多
China is very rich in germplasm resources of Actinidia Lindl.There are 66 actinidia species in the world,and 62 species are found in China.A.deliciosa,A.chinensis Planch.,A.eriantha Benth.and A.arguta(Sieb.&Zucc)P...China is very rich in germplasm resources of Actinidia Lindl.There are 66 actinidia species in the world,and 62 species are found in China.A.deliciosa,A.chinensis Planch.,A.eriantha Benth.and A.arguta(Sieb.&Zucc)Planch.ex Miq.unique to China all have high economic value and are widely cultivated.In this paper,the origin and cultivation history,nutritional value,preservation and rational use of Actinidia germplasm resources were reviewed,and the development and utilization of Actinidia germplasm resources in China was discussed,aiming to facilitate the sustainable utilization and variety improvement of kiwifruit germplasm resources.展开更多
The fruit development rules of two Chinensis Actinidia cultivars were studied in this paper. ‘Fengyue’has the same fruit development cycle as‘Cuiyu’. According to soluble solids content, there are four stages duri...The fruit development rules of two Chinensis Actinidia cultivars were studied in this paper. ‘Fengyue’has the same fruit development cycle as‘Cuiyu’. According to soluble solids content, there are four stages during fruit development phase named comparatively stable period, slow increase period, rapid increase period and stagnating increase period. Fruit firmness change exhibits two periods, i.e. slowly declining period and rapidly declining period. There is an obvious corresponding relation between the changes of fruit firmness and the soluble solids content, i.e. the rapidly declining time of fruit firmness corresponds with the rapidly increasing time of soluble solids content. According to the experiment, the best picking periods of ‘Fengyue’and ‘Cuiyu’are mid September to mid October and early October to early November, respectively.展开更多
对不同猕猴桃品种的分子生物学试验表明:猕猴桃的DNA浓度在920μg/mL符合RAPD分析的要求。通过60个随机引物的PCR扩增,报道了6个不同品种和类型猕猴桃种质资源的RAPD多态性,计算了它们之间的遗传距离,构建了聚类图,并讨论了其亲缘关系...对不同猕猴桃品种的分子生物学试验表明:猕猴桃的DNA浓度在920μg/mL符合RAPD分析的要求。通过60个随机引物的PCR扩增,报道了6个不同品种和类型猕猴桃种质资源的RAPD多态性,计算了它们之间的遗传距离,构建了聚类图,并讨论了其亲缘关系。聚类分析图反映出来源于安徽省主要猕猴桃产区的6个样品可以分为3组,其中抗病与感病的相对较为集中,由此可推断出现这种聚类的原因可能是由于它们基因组中有相同的DNA片段。抗病品系都有一条1 458 bp DNA片段,而感病品系均没有该带。故该片段可能与猕猴桃植株抗溃疡病相关。RAPD多态性从分子水平上反映出了猕猴桃种质资源不同品种及不同类型间复杂的遗传背景,为抗病育种的亲本选配提供了依据,也为合成猕猴桃抗溃疡病探针并用于检测猕猴桃抗溃疡病种质和分子标记辅助育种奠定了基础。展开更多
基金Supported by the Special Science Foundation of Jiangxi Province(20143ACF60015)National Natural Scientific Fund(31360472)~~
文摘[Objective] The variation of sugar, acid and AsA contents in fruits of ‘Ganmi 6＇ kiwifruit （Actinidia eriantha Benth） were investigated during fruit develop- ment. [Method] Kiwi fruits were randomly taken as materials every 15 days since 20 days after full bloom （DAFB） to 170 DAFB until in mature stage. [Result] The results showed that during fruit development of ‘Ganmi 6＇, the total sugar soluble contents had a rising trend with relatively stable at 95 DAFB, then rose until har- vest with the maximum content （10.35%）. The titratable acid content showed a trend of increasing, then declining, then increase to the harvest content （1.10%）. From the sugar acid ratio, we can knew it decreased in 95 DAFB, then up to the max （9.38）. The changes of AsA contents showed double ‘S＇ shape, decreased af- ter the first increased rapidly, slightly increased and then decreased in the early harvest. [Conclusion] It provided a theoretical basis for scientific cultivation methods to explore the nutrients regulation.
基金Supported by Dalian Science and Technology Innovation Fund(2019J13SN120)。
文摘China is very rich in germplasm resources of Actinidia Lindl.There are 66 actinidia species in the world,and 62 species are found in China.A.deliciosa,A.chinensis Planch.,A.eriantha Benth.and A.arguta(Sieb.&Zucc)Planch.ex Miq.unique to China all have high economic value and are widely cultivated.In this paper,the origin and cultivation history,nutritional value,preservation and rational use of Actinidia germplasm resources were reviewed,and the development and utilization of Actinidia germplasm resources in China was discussed,aiming to facilitate the sustainable utilization and variety improvement of kiwifruit germplasm resources.
文摘The fruit development rules of two Chinensis Actinidia cultivars were studied in this paper. ‘Fengyue’has the same fruit development cycle as‘Cuiyu’. According to soluble solids content, there are four stages during fruit development phase named comparatively stable period, slow increase period, rapid increase period and stagnating increase period. Fruit firmness change exhibits two periods, i.e. slowly declining period and rapidly declining period. There is an obvious corresponding relation between the changes of fruit firmness and the soluble solids content, i.e. the rapidly declining time of fruit firmness corresponds with the rapidly increasing time of soluble solids content. According to the experiment, the best picking periods of ‘Fengyue’and ‘Cuiyu’are mid September to mid October and early October to early November, respectively.
文摘对不同猕猴桃品种的分子生物学试验表明:猕猴桃的DNA浓度在920μg/mL符合RAPD分析的要求。通过60个随机引物的PCR扩增,报道了6个不同品种和类型猕猴桃种质资源的RAPD多态性,计算了它们之间的遗传距离,构建了聚类图,并讨论了其亲缘关系。聚类分析图反映出来源于安徽省主要猕猴桃产区的6个样品可以分为3组,其中抗病与感病的相对较为集中,由此可推断出现这种聚类的原因可能是由于它们基因组中有相同的DNA片段。抗病品系都有一条1 458 bp DNA片段,而感病品系均没有该带。故该片段可能与猕猴桃植株抗溃疡病相关。RAPD多态性从分子水平上反映出了猕猴桃种质资源不同品种及不同类型间复杂的遗传背景,为抗病育种的亲本选配提供了依据,也为合成猕猴桃抗溃疡病探针并用于检测猕猴桃抗溃疡病种质和分子标记辅助育种奠定了基础。
