بررسی اثرات تراکم گیاهی و الگوی کاشت بر صفات زراعی، عملکرد کمی و کیفی ذرت علوفه ای

In order to evaluate different methods of planting density on yield andmorpho physiological traits, and yield components of baby corn variety SC704 an experiment was conducted at Agricultural and Natural Resources Research Center of Khorasan Razavi in 1391. In the experiment, a split plot arrangement based on randomized complete block design was used with planting pattern at three levels (single and double row planting on ridges and palm Farrow planting) as main plots and plant densitylevels (90000, 120000 and 150000) as subplots with three replications. The results demonstrated that the planting pattern had significant differences on biological yield (forage yield), number of seeds per row, plant height, steam diameter, Tassel and ear length futures. The highest biomass or forage yield was belonged to single row planting on ridges with 60 ton/ha. The highest biomass or forage yield was obtained for planting palm Farrow on ridges with 54 ton/ha. In addition, the plan t density per system demonstrated significant differences on majority of studied futures. Highest yield production was obtained of density in 150000 plant with an average 54 and 25 ton/ha. Highest average number of ears per plant was achieved 1/1 earper 90 thousand plants per hectare. . The interaction effects between planting pattern and plant density was affected by yield production, corrected yield production, grain biomass quality index, ear diameter and length, steam diameter, number of leaves
above main ear, main ear leaf length and width, number of seeds per row and number of row per ear features.
Thus, palm Farrow planting on ridges and plant density of 150 thousand plants per hectare is recommended to produce maximum forage.The grain biomass quality index was achieved 0/48 for planting palm Farrow on ridges in plant density of 90 thousand plants per hectare. Highest Correctedgrain yieldwas in thepalm Farrowplanting with a density of120thousand plants per hectare however,did not show any difference from150thousandof density. Usethe variety SC704due toits highcompressibilityis recommendedassummer plantingas for its optimum yield production andeconomic income inprepared areas.