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超级稻生产集成技术示范及其效应 总被引:10,自引:3,他引:7
农业部跨越计划中国超级稻试验示范项目的“超级稻生产技术集成与示范”课题于1999年开始实施 ,当年研究超级稻生产技术集成 ,2000年和2001年在研究技术集成的同时 ,开展多点、不同季节的技术示范。通过多学科的协作攻关 ,提出了适合超级稻协优9308的集成技术。集成技术具有科学性、适用性和可操作性 ,使超级稻生产技术在示范中获得成功 ,并在生产中推广应用。一、超级稻生产集成技术体现了科学性、适用性和可操作性与普通的水稻品种和组合不同 ,超级稻协优9308等组合植株高 ,生长量大 ,穗大粒多。超级稻的特性需要相应… 相似文献
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超级杂交稻新组合P88S/0293在海南大面积示范单产超12 t/hm2的栽培技术 总被引:18,自引:6,他引:12
2004年早造,海南省农业科学院与国家杂交水稻工程技术研究中心共同组织实施超级杂交稻新组合P88S/0293在海南三亚与澄迈2个"百亩片"示范项目,三亚片由技术人员统一管理,采取超级稻强化栽培技术,澄迈片由当地46户农民管理,采取结合当地耕作习惯改进了的超级稻强化栽培技术.结果三亚片一类田平均单产12.5t/hm2,澄迈片平均单产12.07 t/hm2,达到我国超级稻第2期产量指标.澄迈片栽培技术与海南农民耕作习惯接近,更符合实际,农民更易接受.从适期播种、浸种催芽、软盘育秧、小苗移栽、科学肥水管理、综合病虫害防治等方面介绍了其配套高产栽培技术. 相似文献
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推广超级稻提高粮食生产水平 总被引:11,自引:3,他引:11
从超级稻试验示范实践所显示的显著增产潜力出发,论述了推广超级稻的必要性和可行性,并针对超级稻的生长特点,提出了推广超级稻的对策和措施. 相似文献
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Y两优7号是湖南杂交水稻研究中心利用Y58S与B163杂交选育而成的超高产杂交水稻新品种,具有高产、稳产、适应性广、抗性较强等特点。介绍了Y两优7号在大田县示范种植表现及其高产栽培技术要点,以期指导该品种的推广种植。 相似文献
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通过2011~2013年连续三年在江苏丰县棉花“万亩”高产创建区内进行了棉花高产和超高产栽培示范及产量形成因素的调查与分析,结果表明:形成超高产棉田的主要因素是光热资源丰富、株行距配置合理、品种的产量潜力大、肥水运筹与棉花生育协调性好;超高产棉田表现成铃多、成铃率高、成铃协调和棉株透光性好等特点。 相似文献
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Practices and Prospects of Super Hybrid Rice Breeding 总被引:4,自引:0,他引:4
CHEN Li-yun XIAO Ying-hui TANG Wen-bang LEI Dong-yang 《水稻科学》2007,14(2):71-77
The great progress in super rice breeding both in China and other countries has been made in recent years. However, there were three main problems in super rice breeding: 1) the super rice varieties were still rare; 2) most super rice varieties exhibited narrow adaptability; and 3) current breeding theories emphasized too much on the rice growth model, but they were unpractical in guidance for rice breeding. According to the authors’ experience on the rice breeding, the breeding strategies including three steps (super parent breeding, super hybrid rice breeding and super hybrid rice seed production) were proposed, and the objectives of each step and the key technologies to achieve the goals were elucidated in detail. The super parent of hybrid rice should exhibit excellent performance in all agronomic traits, with the yield or sink capacity reached the level of the hybrid rice control in regional trials. The super hybrid rice combination should meet the following criteria: good rice quality, wide adaptation, lodging resistance, resistance to main insects and diseases, and the yield exceeded above 8% over the control varieties in the national and provincial regional trials. To achieve the goal, the technical strategies, such as selecting optimal combination of the parents, increasing selection pressure, paying more attention to harmony of ideal plant type, excellent physiological traits and all the agronomic traits, should be emphasized. The yield of seed production should reach 3.75 t/ha and 5.25 t/ha for the super hybrid rice combinations derived from early-season and middle-season types of male sterile lines, respectively. The main technologies for raising seed production yield included selecting optimum seed production site, using the male sterile line with large sink capacity and good outcrossing characteristics, and improving the amount of the pollen by intensive cultivation of the male parent. According to the technologies of the three-step breeding on super hybrid rice, two super rice parents, including a male parent 996 and a thermo(photo)-genic male sterile [T(P)GMS] line C815S, were bred. Furthermore, a super early hybrid rice combination, Luliangyou 996, which could be used as a double-season early rice variety in middle and lower reaches of the Yangtze River, China, was bred by using the super rice variety 996 as the male parent, and several hybrid rice combinations with higher yield than control variety in regional trials both of Hunan Province and state were bred with the T(P)GMS line C815S as the female parent. 相似文献
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超级稻两优616在沙县作烟后稻高产栽培技术 总被引:1,自引:0,他引:1
2012-2013年在福建省沙县建立3个百亩两优616烟后稻高产栽培示范片,两优616均表现高产稳产,2a平均产量639.2kg/667m^2,比对照Ⅱ优明86增产42.3kg/667m^2,增幅7.1%,增产极显著。介绍了超级稻两优616在沙县作烟后稻高产栽培配套技术。 相似文献
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超级杂交稻育种三步法设想与实践 总被引:18,自引:0,他引:18
介绍了国内外水稻超高产育种的基本情况,提出了当前我国水稻超高产育种面临的新问题,即超级稻品种资源匮乏、部分超级杂交稻组合适应性较差、超高产水稻育种理论过于模式化等。针对当前形势,结合多年育种实践,提出了超级杂交稻育种三步法设想,即超级亲本选育——超级杂交组合选育——超级杂交制种,并详细阐述了各步骤的标准和实现其目标的技术路线。超级亲本要求综合性状优良,产量水平或库容量达到或基本达到各级区试对照杂交稻组合的水平。超级杂交稻组合的标准是品质优、适应性广、耐肥抗倒、对主要病虫害达中抗以上水平,产量水平较国家或省区试中对照增产8%左右。其选育的技术路线是通过双亲最佳组配方式,增加选择压力,注重理想株型和优良生理机能及其各性状间的高度协调。超级杂交制种产量水平根据不育系的类型来确定,其中早稻类型不育系杂交制种产量要求大面积达到3.75 t/hm2以上,中稻类型的不育系要求达到5.25 t/hm2以上。其技术路线是通过选择最佳的制种基地,选用库容量大和异交结实特性好的不育系,通过超大行比与超常规培育父本措施提高父本的花粉量,从而提高制种产量。按照超级杂交稻育种三步法的技术路线,成功选育了父本996和两用核不育系C815S两个超级杂交稻亲本,利用前者选育出适合长江中下游稻区作双季早稻种植的超级杂交早稻组合陆两优996,用后者选配出几个增产幅度大、极有应用前景的超级稻新组合。 相似文献
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ZHU Dengfeng 《水稻科学》2000,8(4)
Recently. a great progress was made in breeding and cultivation of super rice in China. The South Demonstration Acceptance Meeting of China Super Rice was held in Oct 17. 2000 in Xinchang County, Zhejiang Province. Yield monitoring group organized by the Department of Science,Technology and Education, Ministry of Agriculture, China, was consisting of famous rice research scientists, agricultural technology extension experts, and government officials. In the demonstration meeting, the group investigated the rice growth of the demonstration field of the improved integrated cultivation technology of super hybrid rice, Xieyou 9308. Four representative demonstration fields from 6.87 ha of the demonstration were harvested after the current investigation of the group. 相似文献
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超级稻两优616作烟后稻种植表现及高产栽培技术 总被引:1,自引:0,他引:1
超级稻新品种两优616是由中种集团福建农嘉种业股份有限公司、福建省农业科学院水稻研究所育成的两系超级稻新品种,于2012年通过福建省品种审定。总结了2013年两优616在尤溪县溪尾乡示范片作烟后稻的种植表现,介绍其主要特征特性及高产栽培技术。 相似文献