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首页> 外文期刊>蚕丝昆虫农业技术研究所研究报告 >Breeding of a new mulberry cultivar, senshin
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Breeding of a new mulberry cultivar, senshin

机译：桑树新品种senshin的选育

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A new mulberry cultivar, Senshin, was bred at the National Institute of Sericultural and Entomological Science. It was selected from seedlings obtained by crossing the mother, Kyu 68-52, and father Oshimaso. Its resistance to dwarf disease has been studied at three experiment stations, in Tottori, Tokushima, Kagoshima prefectures, for 5 years since 1988. Local adaptability has been tested at two experiment stations, in Gifu and Miyazaki Prefectures, for 4 years since 1994. Senshin was found to be superior to control cultivars in the resistance to dwarf disease and shoot cold injury. It was registered as Mulberry Nourin No.19 and named Senshin by the Ministry of Agriculture, Forestry and Fisheries of Japan in August 1998.Senshin has the following characteristics:1. It is a diploid cultivar belonging to Morus latifolia POIRET.2. Its form is characterized by moderate expansion resulting in tolerance to lodging.3. Its medium shoots are long and fewer than those of Hayatesakari. The shoots are greenish brown and slightly zigzag. The internodal distance is somewhat short. 4. Senshin has unlobed thick, somewhat large, smooth, glossy leaves in spring to late autumn. The leaves are dark green and hardening in late autumn is nearly the same as that of Hayatesakari. The phyllotaxy is 2/5.5. The sexual expression is predominantly pistillate, but with less sorosis.6. The sprouting time in spring occurs a few days earlier than in the case of Hayatesakari. The young shoots grow vigorously and uniformly after sprouting. Resprouting after intermediate pruning in summer and autumn is vigorous.7. Senshin has the same leaf yield and quality as Hayatesakari.8. Senshin is highly resistant to dwarf disease and bacterial blight, but the resistance to powdery mildew is lower than that of Hayatesakari. Shoot tip cold injury is less pronounced than in Hayatesakari.Overall, Senshin can be easily cultivated in warm, open areas from the southern to eastern parts of Japan and is very adaptable to densely planted cultivation and mechanical harvesting in summer and spring pruning. Senshin is thus suitable for multiple silkworm rearing.
机译：国立蚕业与昆虫学研究所培育了一种新的桑树品种Senshin。它是从与母亲Kyu 68-52和父亲Oshimaso杂交获得的幼苗中选择的。自1988年以来，已在鸟取县德岛鸟取县的三个试验站研究了其对矮化病的抗性，自1988年以来已进行了5年。自1994年以来，已在岐阜县和宫崎县的两个试验站对局部适应性进行了测试。发现在矮化病和芽苗冷害方面的抗性优于对照品种。该产品于1998年8月被日本农林水产省注册为桑树Nourin No.19，并被命名为Senshin。Senshin具有以下特点：1。它是桑树POIRET.2的二倍体品种。其形式的特征是适度膨胀，导致对倒伏的耐受。3。它的中等芽长，比Hay草少。枝条为棕绿色，略带锯齿形。节间距离略短。 4. Senshin在春天到深秋的时候没有裂片的厚大的，光滑的有光泽的叶子。叶子是深绿色，深秋时的硬化与Hayatesakari几乎一样。叶序为2 / 5.5。性表达主要是雌性，但具较少的浆膜炎6。春天的发芽时间比Hayatesakari早了几天。幼芽发芽后，生长旺盛且均匀。在夏季和秋季进行中等修剪后重新萌生。7。 Senshin的叶片产量和品质与Hayatesakari相同。8。 Senshin对矮化病和细菌性枯萎病具有很高的抵抗力，但对白粉病的抵抗力比Hayatesakari更低。茎尖受冷害的情况不如Hayatesakari明显。总的来说，Senshin可以在日本南部到东部的温暖，开阔地带轻松种植，非常适合夏季和春季修剪的密集种植和机械收割。因此，Senshin适用于多种家蚕饲养。

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