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当前位置: 首页 > 文章 > 遮光处理对马铃薯生长的影响 西南农业学报 2015,28 (5) 1932-1935
Position: Home > Articles > Effect of Shading Treatment on Growing of Potato Southwest China Journal of Agricultural Sciences 2015,28 (5) 1932-1935

遮光处理对马铃薯生长的影响

作  者：
李彩斌;郭华春
单  位：
云南农业大学农学与生物技术学院
关键词：
马铃薯;遮阴;青薯9号;产量;营养品质
摘  要：
以正常光照为对照,用2针遮阴网进行马铃薯遮阴处理,研究不同遮阴度对青薯9号植株生长、产量及品质的影响。结果表明,青薯9号遮阴处理后较对照株高显著增高、茎粗呈变细趋势、主茎数、节数无明显差异、节间长增长、叶面积增大,遮光严重影响块茎产量,当遮光70.22%时商品薯率、单株重、产量均显著下降,产量较对照减产达87.08%,遮光率高于80%后植株不结薯引起绝产。以遮阴70%作为选择压力对另外9个品种进行耐阴性评价,结果显示,所有参试品种在遮光条件下都显著减产,减产率在62.14%~90.74%,但耐阴性在不同品种间存在明显差异,以中薯20最耐阴;Woff,青薯9号,费乌瑞它较耐阴;合作88最不耐阴。从对块茎品质的影响看,遮阴使块茎干物质含量和淀粉含量减少,绝大部分品种的蛋白质含量增加。
译  名：
Effect of Shading Treatment on Growing of Potato
作  者：
LI Cai-bin;GUO Hua-chun;College of Agronomy and Biotechnology,Yunnan Agricultural University;
关键词：
Potato;;Shade;;Qingshu9;;Yield;;Nutritional quality
摘  要：
In this study,the treatments with 2-pin shading net covering the potato,without shading net as the control were designed. The effect of different shading treatments on growing,yield and nutritional quality of‘Qingshu9'was researched. It turned out that height,internode length,leaf area increased obviously compared with the control treatment after shaded,stem diameter decreased compared with the control treatment,main stem number,and pitch number had no significant difference compared with the control treatment. And the shading treatment had a serious effect on tuber yield. Under the 70. 22 % shading,the commodity rate,weight of individual plant,yield decreased remarkably compared with the control which could reduce 87. 08 % production,other shade treatments that the shading over the 80 % was never produced. Therefore the shading 70 % was used as the selection pressure for another 9 potato varieties of shade-tolerant evaluation.The results indicated that the reduction in yield were significant fearfully in all varieties of potato. The reduction rate of yield range between62. 14 % and 90. 74 %. There were obvious differences between varieties of shade-tolerance. The variety of ‘Zhongshu20 'was the most shade-tolerant,the second shade-tolerance varieties were the‘Woff',‘Qingshu9',‘Favorite',and the least shade-tolerant variety was the‘Hezuo88'. From the point of tuber quality influence,dry matter and starch content all decreased,however,the vast majority of potato cultivars protein content increased after shading treatment.

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