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首页> 外文期刊>Acta Horticulturae >Characteristics of interspecific hybrids between Actinidia chinensis kiwifruit and A. rufa native to Japan.
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Characteristics of interspecific hybrids between Actinidia chinensis kiwifruit and A. rufa native to Japan.

机译：中华猕猴桃猕猴桃与 A的种间杂种的特征。 rufa 原产于日本。

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Actinidia rufa, native to south western region of Japan, adapts well to warm climates, and has high cross compatibility with diploid A. chinensis kiwifruit. For the purpose of breeding new kiwi-berries adapted to warm conditions, the characteristics of the progenies from interspecific hybridization of A. rufa x A. chinensis (312 plants) and A. chinensis x A. rufa (334 plants) were evaluated. The leaf morphology of the interspecific hybrids was intermediate between the parental species. The flowers of the hybrids were generally larger than those of A. rufa. The fruit of the hybrids have hairless brown skin similar to that of A. rufa, but the green color of the flesh was lighter. The fruit weight ranged from 11.7 to 58.4 g. Phenologically, the interspecific hybrids flowered in early May halfway between A. chinensis in late April and A. rufa in late May. The fruit matured in late October, half a month later than those of A. chinensis and one month earlier than those of A. rufa. The fruit of interspecific hybrids contained total soluble solids (TSS) ranging from 13.5 to 22.0% and titratable acids (TA) from 1.0 to 2.6%. In the interspecific hybrids, total ascorbic acid in the juice ranged from 20 to 70 mg per 100 g FW, higher than in A. rufa fruit which contain about 15 mg. The content of chlorophyll in the fruit flesh was lower in the interspecific hybrids than in A. rufa. Protease activity was detected in the flesh but it was generally low. These results suggest the potential of the interspecific hybrids as the material from which superior clones can be selected.
机译：Actinidia rufa ，原产于日本西南部地区，对温暖的气候有很好的适应性，并且与二倍体 A的交叉兼容性高。中华猕猴桃。为了育种适应温暖条件的新奇异果，A的种间杂交后代的特征。 rufa x A。 （312种植物）和 A。中华 x A。评估了rufa （334种植物）。种间杂种的叶片形态介于亲本种之间。杂种的花通常大于A的花。 rufa 。杂种的果实具有类似于A的无毛棕色皮肤。 rufa ，但果肉的绿色较浅。果实重量为11.7至58.4克。从物候角度看，种间杂种在5月中旬在A之间开花。 在4月下旬和 A。 rufa 在五月下旬。果实在10月下旬成熟，比 A晚了半个月。 ，比 A早一个月。 rufa 。种间杂种的果实中总可溶性固形物（TSS）为13.5至22.0％，可滴定酸（TA）为1.0至2.6％。在种间杂种中，果汁中的总抗坏血酸范围为每100 g FW 20至70 mg，高于A。 rufa 水果，含约15毫克。种间杂种中果肉中叶绿素的含量低于A。 rufa 。在果肉中检测到蛋白酶活性，但是通常较低。这些结果表明种间杂种作为从中可以选择优良克隆的材料的潜力。

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