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以直立型辽绿8号、半蔓生型辽绿6号为试验材料,采用随机区组排列,以18.0万株/hm2、24.0万株/hm2和12.0万株/hm2(对照)为3个密度处理,研究高密度种植对不同绿豆株型品种农艺性状及产量的影响。结果表明:辽绿8号直立株型品种随种植密度加大,植株分枝数、荚数、粒数增加,植株根系、叶片、茎秆干物积累增加,种植密度24万株/hm2时最高产量达2 835kg/hm2;辽绿6号半蔓生型品种随种植密度增加,植株荚数、粒数减少,干物积累降低,产量下降;在适宜种植密度18万株/hm2时产量达3 085kg/hm2。但两种株型品种的单株荚长、单荚粒数和百粒重差异不大。绿豆株型品种种植密度产量表现不一,可能是因在干旱半干旱条件下,气候变暖,二氧化碳浓度增高,温度提升,光照充裕,群体生长发育协调,绿豆植株干物质积累增加,提高了产量。
Taking the upright type Liao-green 8 and the semi-invasive type Liao-green 6 as the experimental materials, a random block arrangement was used, with the density of 180,000 plants / hm2, 240,000 plants / hm2 and 120,000 plants / hm2 The effects of high density planting on the agronomic characters and yield of different mung bean varieties were studied. The results showed that with the plant density increasing, the branch number, pod number and grain number of plants increased, the dry matter accumulation of plant roots, leaves and stems increased, and the highest yield of planting density of 240 000 plants / hm2 Up to 2 835kg / hm2. With the planting density increasing, the semi-invasive varieties of Liaolu 6 increased the plant pod number and grain number, reduced the dry matter accumulation and decreased the yield. When the suitable planting density was 180,000 plants / hm2, the yield reached 3 085kg / hm2 . However, there was no significant difference in the length of pods per plant, the number of single pods and the weight of 100 kernels in the two plant type cultivars. Mung bean plant varieties yield density of different yields, may be due to arid and semi-arid conditions, climate warming, increased carbon dioxide concentration, temperature rise, ample light, population growth and development coordination, mung bean plant dry matter accumulation increased, increased yield .