| 马铃薯抗旱资源的筛选与评价——营养体对块茎膨大速度的影响 |
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| 引用本文： | 樊民夫,杨明君,李久昌,鲁喜忠.马铃薯抗旱资源的筛选与评价——营养体对块茎膨大速度的影响[J].中国马铃薯,1993(1). |
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| 作者姓名： | 樊民夫 杨明君 李久昌 鲁喜忠 |
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| 作者单位： | 山西省农科院高寒区作物所，山西省农科院高寒区作物所，山西省农科院高寒区作物所，山西省农科院高寒区作物所 大同 037004，大同 037004，大同 037004，大同 037004 |
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| 摘 要： | 摘要马铃薯地上部营养体是形成产量的重要因素之一,营养体与块茎膨是速度呈曲线正相关.营养体的形成随株龄的增长呈直线上升,品种不同则上升的程度也不同,中晚熟品种一般在8月下旬为最盛期,随后急剧下降.块茎形成膨大期因品种不同而异,膨大速度从现蕾期至成熟一直呈直线上升,品种不同则膨大速度各异.由此,根据营养体的量变数据可预测马铃薯块茎产量的高低、同时也可作为选育丰产型品种的一个重要依据.
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EVALUATION AND SELECTION OF POTATO RESOURES FOR DROUGHT RESISTANCE——EFFECT OF THE CANOPY ON SWELLING SPEED OF POTATO TUBER |
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| Abstract: | The potato vegetative mass of aerial part was an important factor of the formation of tuber yield. A positive linear correlation was found between the canopy and the swelling speed of tubers. The canopies of vegetative mass increasd with the plant age, with cultivars varying in degree. The canopies of middle and late maturity cultivars reached the highest level in the last ten-day period of August. Then, they declined rapidly. The tuber swelling speed kept raising in a form of straight line from the flower bud stage to the maturity stage. Different cultivars had different swelling speeds. Therefore, according to the quantitative date of vegetative mass, the tuber yield can be predicted. Furthermore, they can serve as a basis for the selection of high yield cultivars. |
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