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南充甘薯产业化发展的分析 总被引:1,自引:0,他引:1
提出了甘薯种植业及其产业链的健康发展将成为我国发展现代农业的重要内容和新的经济增长点,分析了南充市甘薯种植、利用现状及产业化经营存在的问题,论述了加快发展南充市甘薯产业化经营的作用和现实意义,并提出了相应的对策措施。 相似文献
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在一些甘薯种植地区已经形成了科研单位+龙头企业+基地农户或科研单位+农村经济联合社+农户种植等模式,以科研单位为依托,由科研单位负责科研攻关,培育新品种。农村经济联合社负责推广新品种,以企业为龙头,与农户签订订单农业,建立原料生产基地。形成“科研、推广、加工”一体化,“生产、加工、销售”一条龙的甘薯产业化模式。这些模式极大地提高了种植甘薯的社会效益和经济效益,形成了甘薯产业化生产。现就甘薯的标准化生产技术与新品种利用介绍如下。 相似文献
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河北省甘薯生产科研概况及产业化发展对策 总被引:8,自引:0,他引:8
中国甘薯产量占世界甘薯产量的80%以上.甘薯高产稳产,抗逆性强,营养丰富又有保健功能,劳动力密集耗水少,是入世后中国农产品参与国际竞争的强势作物.河北省甘薯生产具有生态、加工、区位三大优势,为省政府确定的五大农业新兴产业之一.甘薯新品种选育和技术研究取得重要进展,为甘薯生产提供了技术支撑.要进一步推进甘薯产业化经营,实现种植区域化、品种专用化、生产标准化、加工规模化.扩大生产加工规模,实现精深加工精品上市,推行无公害生产和加工技术标准,形成区域化产业优势. 相似文献
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特用甘薯的研究进展及综合开发利用 总被引:24,自引:0,他引:24
根据近年来我国特用甘薯的研究状况以及实际生产的需要,扼要地阐述了目前我国各类特用甘薯的育种进展、育种成果、综合利用及发展前景,为特用甘薯的深入研究和开发利用提供参考。 相似文献
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对南充市农业科学研究所“十五”期间主要选用的甘薯亲本材料作母本、父本组合的实生苗及其后代表现进行分析,其结果,84-2315、9014-3、AB940078-1、绵粉一号、徐薯18、浙13、三合薯、台农10号是较好的高淀粉育种亲本材料。高淀粉育种应该利用这些亲本多配组合或进行集团杂交,以期从其后代中筛选高淀粉甘薯新品种。84-2315、9014-3、潮薯一号、绵粉一号、徐薯18、南薯99、农林10号、坦桑尼亚是较好的高产饲用型育种亲本材料,高产饲料型品种选育应利用这些亲本材料多配组合或进行集团杂交,以期从其后代中筛选高产饲料型甘薯新品种。 相似文献
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China is the largest sweetpotato producer country in the world, with its total growing area and yield reaching 5.5 million ha and 106 million metric tones, respectively. Viral diseases constitute a major hindrance to the development and highly profitable production of the sweetpotato industry. The present article provides updated comprehensive information on type of virus, yield loss caused by viruses, increased yield and benefits by cultivation of virus-free plants. By analyzing data on changes in vegetative growth and physiology of plants infected by viruses, the authors attempted to elucidate the mechanisms by which infection of viruses caused significant losses of the root tuber yield. Meristem culture techniques for production of virus-free sweetpotato plants and propagation system of virus-free seed tubers have been well developed in China. At present time, virus-free sweetpotato seed tubers have been widely used in major sweetpotato-growing areas in China. Usage of virus-free seed tubers has brought great benefits to the sweetpotato industry in China. 相似文献
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《Plant Production Science》2013,16(4):247-251
AbstractRoot zone temperature (RZT) is an important factor that affects the establishment of crops in the field. This study was conducted to determine the effect of high RZT on the root system development of cassava and sweetpotato and to assess the response of each root system component of cassava and sweetpotato to high RZTs. Cassava and sweetpotato are widely grown crops in soils that are prone to reach a high temperature especially during the dry season. The plant root system was the primary object of investigation in this study. Cassava and sweetpotato cuttings were grown in pots for 20 days in a growth chamber where two different soil temperature regimes were maintained : 40°C (high RZT) and 25°C (normal). High RZT significantly decreased the total length of the adventitious roots (ARs) and the number and total length of the first order lateral roots (LRs) in both cassava and sweetpotato. Reduction in these root growth parameters was greater in the latter than in the former. High RZT caused a marked increase in the number of the second order LRs in sweetpotato and tended to enhance the formation of the third order LRs. Under high RZT, in cassava, a higher proportion of the total number of ARs and the first order LRs, and thus, a greater fraction of the total root length came from the lower nodes of the cuttings that were buried deep in the soil at planting. In sweetpotato, a greater proportion of the total number and total length of the ARs and the first order LRs was observed in the nodes of the cuttings that were buried closer to the soil surface than those buried deeper. An opposite trend was evident in both cassava and sweetpotato grown under a normal RZT. In the screenhouse experiment where plants were grown for 12 days, root growth of cassava was significantly reduced by the high RZT that prevailed when the soil was not covered with mulch materials. The root development in the mulched soil was similar to that under normal RZT in the growth chamber. 相似文献