Research On Pepper Grafted Rootstock Influence On The Morphology And Strong

Pepper is deciduous shrub or small tree of Rutaceae and its peel is commonly used as household spice condiment. As the largest producer of pepper, but also the consumer, is necessary to carry out related research in pepper cultivation and high-yield cultivation fields. Through grafting experiments, this paper does research into the graft survival rate of pepper affected by different plant growth regulators, a-NAA and ABT. Then with systematic sampling method it has investigated and compared the difference of items including tree height, crown width, the main branches bearing fruit, fruit shape, fruit yield and pest between grafted pepper and seedling Sichuan pepper. The research results demonstrate that grafted pepper can gain in the premature delivery, high and stable yield, the transformation of low-yield and low-quality pepper garden. Details are as follows:(1) When scion was treated with 1200 mg/L a-NAA, grafted pepper had the highest survival rate of 91.11%,26.67% higher than scion treated by water. At the same time, when scion was treated with 1200 mg/L ABT, its survival rate was 77.78%,13.34% higher than the control.(2) The tree height of grafted Sichuan pepper was lower than the seedling pepper of the same age but outdid that when it comes to crown area, fruiting branches length, the number of fruiting branches, ear length, yield per plant and resistance to leaf rust and scale insects.(3) Grafting was an effective way to improve low-yield and low-quality pepper garden. By grafting fine varieties, pepper can be put into production early and has stable production. Meanwhile, its yield was higher than seedling pepper. Besides grafting may also play a role in terms of harvesting costs and resistance, thus improving economic benefits.