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以耐弱光番茄品系QX、‘小粉’和不耐弱光番茄品系16L、lnf为试材,通过覆盖双层遮阳网研究弱光对温室幼苗生长发育的影响,并筛选出苗期耐弱光指标。结果表明:弱光条件下番茄生长受到抑制,遮光后的壮苗指数均比对照增加,且耐弱光番茄品系显著高于不耐弱光番茄品系;各番茄品系的叶绿素a/b和净光合速率均呈下降趋势,耐弱光番茄品系显著低于不耐弱光番茄品系。该试验初步筛选出壮苗指数、叶绿素a/b、净光合速率作为苗期耐弱光指标。
The effects of low light on the growth and development of greenhouse seedlings were studied by covering the double shade net with QX, ’small powder’ and ’LXF’, which are resistant to weak light tomato and 16L, lnf, index. The results showed that the growth of tomato was inhibited under low light conditions, and the seedling index after shading increased more than that of the control, and the tolerance to weak light tomato was significantly higher than that of light tolerance tomato. The chlorophyll a / b and net photosynthesis The rate of decline showed a downward trend, resistance to weak light tomato lines were significantly lower than the impatience of weak light tomato lines. The test initially screened strong seedling index, chlorophyll a / b, net photosynthetic rate as seedling weak light tolerance index.