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1 造成芹菜空心的原因1.1 秋冬季或冬春季保护地内栽培芹菜,常会遇到低温,光照不足、植株受冻,导致叶片光合作用降低,并使根系对水分、矿质养分的吸收运转受阻而引起叶柄空心。1.2 生长期,保护地温度过高、土壤过于干旱,会使叶柄中厚壁组织加厚,髓部和输导组织细胞老化,薄壁细胞破裂,造成叶柄空心。生长期浇水过多或植株后期生长过快或收获不及时,叶柄也易老化而
1 causes celery hollow 1.1 celery cultivation in autumn, winter or winter and spring, often encounter low temperature, inadequate lighting, cold plants, leading to reduced leaf photosynthesis, and the root of the water, mineral nutrients absorption hindered operation caused petiole Hollow. 1.2 growth period, the protection of the ground temperature is too high, the soil is too dry, petiole thick wall tissue will be thick, pith and lead tissue cells aging, parenchyma cells rupture, resulting in petiole hollow. Petiole is also prone to aging due to excessive watering in the growing season or rapid growth or late harvest of the plant