پديد آورندگان :
كاشي، عبدالكريم نويسنده دانشكده كشاورزي - دانشگاه تهران DELSHAD, M. , عسگرزاده، مرتضي نويسنده Asgharzadeh, M
كليدواژه :
درصد جوانه زني , زئوليت , شاخص سطح برگ , نشاء گوجه فرنگي , زراعت و اصلاح نباتات , قطر ساقه
چكيده لاتين :
Super absorbents, which Zeolite is, one of them, have high abilities to absorb water. These materials, can save water for a long time and can absorb it two or three parts more than their volume and then gradually gives it to plants. In this research, the effect of adding Zeolite to the bed of tomato (cv. Urbana) culture was studied. The study was established randomly in factorial with two factors in three replication at Greenhouses of Horticulture Group at University of Tehran, Karaj. Zeolite factor was three levels (Z1 without Zeolite, Z2 Zeolite 50%, Z3 with Zeolite 10%) and bed in four levels (SI soil with sand 15%, S2 soil with sand 30%, S3 soil, S4 sand). For analysis of these factors, we measured Germination Percent, Dry Weight, Fresh Weight, stem Diameter, Root Bulk, Root Length, Leaf Area Index, Stem Length and Leaf number in all the plants. The results showed that adding Zeolite to beds, has significant effect on Stem Diameter, Leaf number, Leaf Area Index and Dry Weight. Adding 10% of Zeolite to every kind of beds factors, causes the increase in Stem Diameter, Leaf number, Leaf Area Index and Dry Weight which are the most quality important factors for seedlings. It was concluded that increase in Zeolite percent, in every bed factors, can also decrease the Germination Percent. In the other hands, adding Zeolite decreases the bed moisture at the surface.