论文部分内容阅读
以番茄品种“金果1号”为试验材料,研究了番茄植株在日光温室内生长发育、干物质生产等规律。结果表明:日光温室番茄株高、叶数、叶面积以及干物质生长量均与定植后的生长天数呈明显线性关系,随着生长天数的增加,其相应生长规律分别为2.77cm/d,0.3片/d,78.8cm2/d,9.12g·m-2·d-1。试验还表明番茄植株的干重需达到42g以上才开始坐果,并且果实干重与植株总干重之间呈线性关系,坐果后,植株总干重每增加1g,果实干重约增加0.7g。干物质在根、茎、叶中的分配比例从开花前到坐果后呈明显下降趋势,果实干重在植株总干重中所占比例显著增加,达到60%以上。番茄干物质生产量与温室有效积温(>10℃的温度总和)有很强的线性关系,每个有效积温单位(℃·d)干物质的生产量约为0.67g/m2;植株干物质生产与太阳辐射量之间也有较强的线性关系。
With tomato variety “Golden fruit 1 ” as test material, the growth and development of tomato plants in sunlight greenhouse and the law of dry matter production were studied. The results showed that: the plant height, number of leaves, leaf area and dry matter growth of tomato in solar greenhouse were significantly linear with the number of days after planting. With the increase of growth days, the corresponding growth law was 2.77cm / d, 0.3 Piece / d, 78.8 cm2 / d, 9.12 g.m-2.d-1. The experiment also showed that the dry weight of tomato plants needed to reach above 42g to start fruit setting, and the fruit dry weight had a linear relationship with the total dry weight of the plant. After each fruit weight increased by 1g, the dry weight of the fruit increased about 0.7g. The distribution proportion of dry matter in roots, stems and leaves decreased obviously from before flowering to fruit setting, and the proportion of dry weight of fruits in total dry weight of plants increased significantly, reaching over 60%. There was a strong linear relationship between the tomato dry matter production and the greenhouse effective accumulated temperature (> 10 ℃), and the dry matter production per effective accumulated temperature unit (℃ · d) was about 0.67g / m2. The plant dry matter production There is also a strong linear relationship with the amount of solar radiation.