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首页> 美国卫生研究院文献>Foods >Yield and Quality Characteristics of Brassica Microgreens as Affected by the NH4:NO3 Molar Ratio and Strength of the Nutrient Solution
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Yield and Quality Characteristics of Brassica Microgreens as Affected by the NH4:NO3 Molar Ratio and Strength of the Nutrient Solution

机译：NH4：NO3摩尔比和营养液强度对甘蓝型油菜产量和品质特性的影响

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Microgreens are gaining more and more interest, but little information is available on the effects of the chemical composition of the nutrient solution on the microgreen yield. In this study, three genotypes ( var. , var. , and L. subsp. L. Janch. var. Hort) were fertigated with three modified strength Hoagland nutrient solutions (1/2, 1/4, and 1/8 strength) or with three modified half-strength Hoagland nutrient solutions with three different NH :NO molar ratios (5:95, 15:85, and 25:75). Microgreen yields and content of inorganic ions, dietary fiber, proteins, α-tocopherol, and β-carotene were evaluated. Micro cauliflower showed the highest yield, as well as a higher content of mineral elements and α-tocopherol (10.4 mg 100 g fresh weight (FW)) than other genotypes. The use of nutrient solution at half strength gave both a high yield (0.23 g cm ) and a desirable seedling height. By changing the NH :NO molar ratio in the nutrient solution, no differences were found on yield and growing parameters, although the highest β-carotene content (6.3 mg 100 g FW) was found by using a NH :NO molar ratio of 25:75. The lowest nitrate content (on average 6.8 g 100 g dry weight) was found in micro broccoli and micro broccoli raab by using a nutrient solution with NH :NO molar ratios of 25:75 and 5:95, respectively. Micro cauliflower fertigated with a NH :NO molar ratio of 25:75 showed the highest dry matter (9.8 g 100 g FW) and protein content (4.2 g 100 g FW).
机译：微型蔬菜越来越受到人们的关注，但是关于营养液化学成分对微型蔬菜产量影响的信息很少。在这项研究中，使用三种改良强度的Hoagland营养液（1 / 2、1 / 4和1/8强度）对三种基因型（变种，变种和亚种L. Janch。变种Hort）进行施肥。或使用三种不同的NH：NO摩尔比（5：95、15：85和25:75）的改良的半强度Hoagland营养液。评估了微绿的产量和无机离子，膳食纤维，蛋白质，α-生育酚和β-胡萝卜素的含量。与其他基因型相比，微花椰菜显示出最高的产量，以及更高的矿质元素和α-生育酚含量（10.4 mg 100 g鲜重（FW））。使用一半强度的营养液既能获得高产量（0.23 g cm），又能达到理想的苗高。通过改变营养液中的NH：NO摩尔比，尽管使用25:10的NH：NO可以发现最高的β-胡萝卜素含量（6.3 mg 100 g FW），但在产量和生长参数上没有发现差异。 75。通过使用NH：NO摩尔比分别为25:75和5:95的营养液在微花椰菜和微花椰菜中发现最低的硝酸盐含量（平均6.8 g 100 g干重）。以NH：NO摩尔比为25:75施肥的微花椰菜显示出最高的干物质（9.8 g 100 g FW）和蛋白质含量（4.2 g 100 g FW）。

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