Effect of Plant Density and Spraying with Potassium on Growth and Yield of Pimpinella anisum L.

Abstract

This experiment was conducted during Winter season of 2013-2014 at Al-Zubair farms in Basrah, South of Iraq. The experiment was carried out in order to study the effects of Plant density and spray of Potassium Sulphate on the growth and Fruiting seed of the Pimpineilla anisum L. This was done through the use of two factors : three Plant density values (10, 20, 40) p.m2 and three levels of spray with fertilizer KSO4 which are 0, 30, 60 mg. L. These factors were designed according to the method of the Randomized Complete Block Design (RCBD) and compared to Least Significant Difference Test (L.S.D.) at probability of 5%, the number of factors were 9 factors distributed into three partitions. Studying detail numbers like the height of plant, number of branches, fresh weights of vegetative, date of first inflorescence, number of flowers per plant, the quotient of seed per plant and the total production of seed per hectare. For the ones tested, the statistical analysis results show increase of plant density 40 p.m2 cause increasing in height of plant, decreasing in plant branches, decreasing of flowering and quotient of seed per plant. For plant density 10p.m2 results excelled for all factors under the studied against the plants except quotient of seed per plant. While the total production increased per hectare for area unit and plants sprayed with 60 mg. L excelled in all plant qualities studied compared with plants sprayed with distilled water and plants sprayed with 30 mg. L of Potassium Sulphate.