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首页> 外文期刊>African Journal of Agricultural Research >Sowing date effect on growth and yield attributes of corn (Zea mays everta sturt) grown under different densities
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Sowing date effect on growth and yield attributes of corn (Zea mays everta sturt) grown under different densities

机译：播期对不同密度下玉米（Zea mays everta sturt）生长和产量特性的影响

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摘要

The effect of different sowing dates (June 5th, 20th and July 6th and 21th) and densities rates of 60000, 70000, 80000 and 90000 plant/ha on growth and yield components of Popcorn (Zea mays everta Sturt.) was investigated at a research field in Arak, Iran during 2009 and 2010 growing seasons. The experiment was carried out using split plots based on randomized complete block design (RCBD) with four replications. Results showed that sowing date effect was significant on number of grains per ear, number of nodes per stalk, ear height, ear diameter, husked green ear weight, 1000-grain weight, plant height and grain yield of pop corn. Densities significantly affected plant height, ear diameter, ear height, grain yield, husked green ear weight and 1000-grain weight. Interaction effect of sowing date × density was only affected by 1000-grain weight, grain yield and husked green ear weight, whereas the rest of the studied traits remained unaffected. The highest grain yield (7815.16 kg ha-1) was that of July 6th coupled with 80000 plants/ha of density. It is concluded that optimum density/sowing date for popcorn crop is 80000 plant/ha. It is also suggested that further research should be done under different environmental conditions.
机译：在一项研究中，研究了不同播种日期（6月5日，20日以及7月6日和21日）和密度60000、70000、80000和90000株/公顷对爆米花（Zea mays everta Sturt。）生长和产量构成的影响。 2009年和2010年生长季节期间，在伊朗阿拉克的油菜田。实验是基于带有四个重复的随机完整块设计（RCBD）的分割图进行的。结果表明，播期对单穗粒数，每茎节数，穗高，穗径，绿穗重，千粒重，株高和爆米花的籽粒产量都有显着影响。密度显着影响植株高度，穗直径，穗高度，籽粒产量，去壳的绿穗重和1000粒重。播期×密度的交互作用仅受1000粒重，籽粒产量和去壳绿穗重的影响，而其余研究性状保持不变。最高的谷物产量（7815.16 kg ha-1）是7月6日，最高密度为80000株植物/公顷。结论是：爆米花的最佳密度/播种期为8万株/公顷。还建议应在不同的环境条件下进行进一步的研究。

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