黄肉猕猴桃新品种‘金喜’的选育

‘金喜’是以‘金桃’(武植81-1)为母本、中华猕猴桃雄性优株‘金雄1号’杂交选育出的黄肉猕猴桃新品种。果实圆柱形,果顶平或微凹,果皮黄褐色,果实端正均匀,平均单果质量88.5 g。果肉黄色,中心柱黄白色,所占的比例较小,肉质细嫩,风味浓,可溶性固形物含量(w,后同)15.0%～21.7%,干物质含量18.7%～23.5%,总糖含量12.2%～13.5%,可滴定酸含量1.0%～1.2%,果实维生素C含量1 416 mg·kg^(-1)。果实较耐贮藏,常温下可贮1～2个月,低温下可贮4个月以上,软熟果货架期较长,常温下15～20 d,低温下1～2个月。果实生育期约150 d,在杭州地区4月下旬开花,10月上旬果实成熟。萌芽率72.7%,成枝率100%。在结果枝的1～8节着生花序5～8个,以单花和三花为主。坐果率95%以上,没有生理落果现象。嫁接苗第4年每666.7 m^2产量超过1 000 kg,丰产稳产。不易感抗溃疡病。适于浙江等生态类似区域栽培。

清代团体土地所有权探析——以义田制度为中心的考察

以义田为代表的清代团体土地,是清代土地所有权的重要形式之一,对清代社会的长期稳定具有重要价值。清代团体土地所有权在宗族、书院、寺庙等主体上的设立过程,体现了民间力举与国家力推的特征;清代团体土地所有权以交易安全为第一宗旨,其采用的要求苛刻之运行模式,是封闭主义与回避原则的作用结果,避免了社会动荡对其产权稳定的冲击;宗族法与国家法二元色彩的合力,则形成了清代团体土地所有权的保护源泉。

A preliminary study of rare-metal mineralization in the Himalayan leucogranite belts, South Tibet

The Himalayan leucogranite occurs as two extensive(>1000 km) E-W trending belts on the Tibetan Plateau with the unique features. The leucogranite comprised biotite granite, two-mica/muscovite granite, tourmaline granite and garnet granite, which have been identified in previous studies, as well as albite granite and granitic pegmatite that were identified in this investigation. Fifteen leucogranite plutons were studied and 12 were found to contain rare-metal bearing minerals such as beryl(the representative of Be mineralization), columbite-group minerals, tapiolite, pyrochlore-microlite, fergusonite, Nb-Ta rutile(the representative of Nb-Ta mineralization), and cassiterite(the representative of Sn mineralization) mainly based on the field trip,microscope observation and microprobe analysis. The preliminary result shows that the Himalayan leucogranite is commonly related to the rare-metal mineralization and warrants future investigation. Further exploration and intensive research work is important in determining the rare-metal resource potential of this area.