中国稻米
中國稻米
중국도미
CHINA RICE
2014年
4期
14-17
,共4页
水稻%品种结构%演变
水稻%品種結構%縯變
수도%품충결구%연변
rice%cultivar types%temporal change
根据1999年以来浙江省不同类型水稻品种的种植面积数据，分析了不同时期浙江的主栽品种数量和品种集聚度等。结果表明，与《种子法》实施前的1999年相比：一是2002年以来浙江省水稻生产上推广应用的品种总数变化不大，但杂交晚稻品种数量逐年增加，常规水稻（除晚籼稻外）品种数量则逐年下降；二是杂交晚籼稻品种集聚度呈下降趋势，常规晚粳稻品种集聚度呈上升趋势；三是杂交晚稻面积占比逐年上升，而常规晚稻面积占晚稻面积比例总体呈下降趋势；四是1999-2013年期间水稻主栽品种已经更新1次以上。
根據1999年以來浙江省不同類型水稻品種的種植麵積數據，分析瞭不同時期浙江的主栽品種數量和品種集聚度等。結果錶明，與《種子法》實施前的1999年相比：一是2002年以來浙江省水稻生產上推廣應用的品種總數變化不大，但雜交晚稻品種數量逐年增加，常規水稻（除晚秈稻外）品種數量則逐年下降；二是雜交晚秈稻品種集聚度呈下降趨勢，常規晚粳稻品種集聚度呈上升趨勢；三是雜交晚稻麵積佔比逐年上升，而常規晚稻麵積佔晚稻麵積比例總體呈下降趨勢；四是1999-2013年期間水稻主栽品種已經更新1次以上。
근거1999년이래절강성불동류형수도품충적충식면적수거，분석료불동시기절강적주재품충수량화품충집취도등。결과표명，여《충자법》실시전적1999년상비：일시2002년이래절강성수도생산상추엄응용적품충총수변화불대，단잡교만도품충수량축년증가，상규수도（제만선도외）품충수량칙축년하강；이시잡교만선도품충집취도정하강추세，상규만갱도품충집취도정상승추세；삼시잡교만도면적점비축년상승，이상규만도면적점만도면적비례총체정하강추세；사시1999-2013년기간수도주재품충이경경신1차이상。
The temporal changes in the number of major cultivars and percentage of production area for the top five cultivars were an-alyzed according to production area of different types of rice cultivars in Zhejiang province since 1999. Compared to 1999, Which is the former year of the Seed Law of the People's Republic of China implemented, the total number of rice cultivars applied in Zhejiang Province was almost similar since 2002, but the number of hybrid late rice combinations increased gradually, whereas the number of conventional rice cultivars except for late indica rice cultivars declined year by year. The percentage of production area of top five hy-brid late indica rice combinations reduced year by year, while that of conventional late japonica rice cultivars increased gradually. The production area of hybrid late japonica rice combinations increased sharply, while that of conventional late japonica rice cultivars re-duced dramatically. During the period of 1999-2013, the major rice cultivar was replaced at least once.
