迟播迟栽对不同类型粳稻品种机插产量及生育期的影响
지파지재대불동류형갱도품충궤삽산량급생육기적영향
Effect of Late Sowing and Late Transplanting on Yield and Period of Duration of Different Types of Mechanical Transplanting Rice
  • 万方数据
    中国稻米 중국도미
    CHINA RICE
    2014年 3期 11-16 ,共6页

    邢志鹏%胡雅杰%张洪程%龚金龙%戴其根%霍中洋%许轲%魏海燕%张强%王文婷%李德剑%刘国林%刘国涛%朱佳炜

    형지붕%호아걸%장홍정%공금룡%대기근%곽중양%허가%위해연%장강%왕문정%리덕검%류국림%류국도%주가위

    水稻%迟播迟栽%机插%播栽期%产量%生育期 水稻%遲播遲栽%機插%播栽期%產量%生育期
    수도%지파지재%궤삽%파재기%산량%생육기
    rice%late sowing and late translating%mechanical transplanting%sowing and transplanting date%yield%period of duration
    以杂交稻和常规稻为试验材料，在苏南常熟、苏中兴化和苏北东海3个试验点同时开展播期试验，探讨迟播迟栽条件下机插稻稳产、增产问题。结果表明，随着播期的推迟，各试验点水稻生物产量、经济产量、经济系数、单位面积穗数、每穗粒数、群体颖花量和结实率不断下降，生育期延迟且全生育期缩短。分析发现，每穗粒数受播期影响最大，其余依次为结实率、穗数、千粒重。甬优2638依其大穗优势具有更高的产量潜力，但随着播期的推迟，其产量优势减小。甬优2638在各稻区均表现出抽穗较早、群体库容大、生物产量高等优势，具有在迟播迟栽生产条件下获取稳产、高产的潜质。迟播迟栽对不同类型水稻品种产量及生育期具有较大影响。据此，从安全生育性及稳产角度考虑，对不同类型品种在不同稻区生产的最晚播期进行了初步拟定，以为大面积生产提供参考。
    이잡교도화상규도위시험재료，재소남상숙、소중흥화화소북동해3개시험점동시개전파기시험，탐토지파지재조건하궤삽도은산、증산문제。결과표명，수착파기적추지，각시험점수도생물산량、경제산량、경제계수、단위면적수수、매수립수、군체영화량화결실솔불단하강，생육기연지차전생육기축단。분석발현，매수립수수파기영향최대，기여의차위결실솔、수수、천립중。용우2638의기대수우세구유경고적산량잠력，단수착파기적추지，기산량우세감소。용우2638재각도구균표현출추수교조、군체고용대、생물산량고등우세，구유재지파지재생산조건하획취은산、고산적잠질。지파지재대불동류형수도품충산량급생육기구유교대영향。거차，종안전생육성급은산각도고필，대불동류형품충재불동도구생산적최만파기진행료초보의정，이위대면적생산제공삼고。
    A comparative study of the effects of late sowing and late transplanting on yield and formation of mechanical transplanting rice was conducted through setting five sowing dates based on the production conditions in the following three different regions: Taihu rice district in Changshu(Sunan), Lixiahe rice district in Xinghua(Suzhong), Huaibei rice district in Donghai(Subei), with hybrid rice and conventional rice as materials. The results showed that along with the delayed sowing date, the biomass yield, actual yield, harvest index, No. of panicles, No. of spikelets per panicle, total spikelets, seed-setting rate declined, and the whole period of growth and development shortened. Analysis revealed that sowing date showed greatest influence on No. of spikelets per panicle, then seed-setting rate, panicles and 1000-grain weight. The hybrid rice Yongyou 2638 exhibited higher yield advantage and potential through its large spike. But with the delay of sowing date and exaltation of latitude, the yield advantage of hybrid rice minified. Therefore, if there is no any production potential in the variety under the production mode of late sowing and late translating, a latest sowing date should be concluded, based on the variety characteristic and the phonological conditions, from the perspective of cultivating safe and stable yield. Some conclusions about the most late sowing date of the tested varieties was tentatively set in this paper, in order to provide a reference for the large scale production.
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