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首页> 外文会议>International Horticultural Congress >The Effect of Watermelon (Citrullus aedulis) Grafting Methods on Seedling's Growth Rate and Plant Stand Establishment Rate under Saline Conditions
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The Effect of Watermelon (Citrullus aedulis) Grafting Methods on Seedling's Growth Rate and Plant Stand Establishment Rate under Saline Conditions

机译：西瓜（柑橘AEDULIS）移植方法对盐条件下幼苗生长速率和植物支架建立率的影响

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Two different commercial rootstocks were grafted with each of two commercial watermelon cultivars. For each combination, splice grafting (SG) and root pruning splice grafting (RPSG) were simultaneously applied. At the end of the nursery period, 40 plants of 14 days old seedlings for each grafting combinations were transplanted in larger pots filled with vermiculite and divided in two equal groups. In the following 10 days all plants were periodically irrigated with equal amounts of the same nutrient solution, but differing from each other by the quantity of NaCl added in the nutrient solution. Two weeks after grafting, and 10 days after transplanting, 10 plants of each experimental plot were randomly selected. Growth rate during the nursery stage and stand establishment rate after transplanting, defined as the relative growth rate (RGR) and its components, net assimilation rate (NAR) and leaf area ratio (LAR), were computed for each experimental plot. Compared to RPSG seedlings, a higher plant dry matter and larger leaf area per plant were recorded for SG seedlings at the end of nursery stage. Despite that, a significantly higher relative growth rate was found for RPSG seedlings, mostly due to higher net assimilation rate. The same advantage of RPSG was kept during the stand establishment period. As a result, at the end of transplanting period, no significant differences were found between SG and RPSG watermelon seedlings regarding to plant dry matter and leaf area per plant. Generally speaking, the stand establishment rate of transplanted seedlings was drastically reduced due to the increase of nutrient solution salinity, but still significantly higher values were recorded in case of RPSG seedlings.
机译：两种不同的商业砧木嫁接了两种商业西瓜品种中的每一个。对于每种组合，同时施加接头接枝（SG）和根灌注接枝接枝（RPSG）。在幼儿园结束时，每种接枝组合的40株幼苗的幼苗在填充有蛭石的较大盆中移植，并分为两个相等的群体。在下文中，10天用相等的相同营养溶液定期灌溉所有植物，但通过在营养溶液中加入的NaCl的量彼此不同。嫁接后两周，随机选择10天后，每种实验图10株植物。移植后的幼儿园和支架建立率期间的生长速率定义为相对生长速率（RGR）及其组分，每个实验图都计算了净同化率（NAR）和叶面积比（LAR）。与RPSG幼苗相比，在苗圃阶段结束时为SG幼苗记录每株植物干物质和较大的叶面积。尽管如此，RPSG幼苗发现了显着更高的相对生长速率，主要是由于净同化率较高。在立式建立期间保持RPSG的相同优势。结果，在移植期结束时，SG和RPSG西瓜幼苗没有发现关于种植每株干物质和叶面积的显着差异。一般来说，由于营养溶液盐度的增加，移植幼苗的立式建立率随着营养溶液盐度的增加而大大降低，但在RPSG幼苗的情况下记录了显着更高的值。

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