تأثير حامض الهيوميك و الكثافة النباتية على نمو و حاصل صنفين من الذرة الصفراء Zea mays L. : 2-صفات الحاصل

Other Title(s)

Effect of humic acid and plant density on growth and yield of two varieties of maize (Zea mays L.)‎ : 2-yield traits

Joint Authors

خالد سعيد عبد الله
عباس عبد الله طه
الليلة، موفق جبر

Source

مجلة جامعة كركوك للعلوم الزراعية

Publisher

Kirkuk University College of Agriculture

Publication Date

2019-12-31

Country of Publication

Iraq

No. of Pages

17

Main Subjects

Agriculture

English Abstract

A field experiment was conducted in the two seasons (autumn 2015 and spring 2016) at the Agricultural Research Center of the College of Agriculture / University of Kirkuk in Al-Sayada area south of Kirkuk governorate, using three levels of humic acid (0,12,24 kg.ha-1 ) and two maize varieties( ZP684 and Dracma) under the influence of four levels of plant density, which is (142857,952,38,71428,57142 plant / ha), and distributed according to the design of the complete random sectors and in the order of three factors identified by three replicates, Several field traits and yield were studied for the maize, which included: diameter and length of the ear, number of row grains, number of rows in ear, number of seeds, and weight of (500seed).

The results showed that there was a significant overlap between the three studied factors in the experiment.

In most of the mentioned traits, except for the number of rows in the ear in the autumn season, The global treatment of the addition of humic acid (24 kg / ha), low plant density (57142 plants / ha) and Dracma variety was the highest in the autumn season: The diameter of the Ears was (45.29 mm), the length of the ear (22.88 cm), the number of line grains (37.29), the number of grains (574.13), The average plant yield is (172.06 g), while the global treatment of humic acid (24 kg / ha) and low plant density (57142 plan(18.33 cm t / ha) for (ZP684) gives the highest spring season for ear diameter is(392.5 mm) and ear length is, The number of grain in the row 33.27, and the number of grains of ear was (439.8 grain / ear) and the plant yield was (104.07 g) and the weight of 500 grains (132.65 g).

As for the double interaction between the studied factors, no significant differences were observed for the two diameter and length of the ear, when the interaction between the humic acid and the varieties or the density and the varieties did not affect the number of rows significantly in the bilateral interactions in the autumn season, The addition of the humic acid has significantly affected all the studied traits.

The level of( 24 kg / ha) is higher than the highest values for both traits.

For both seasons, (Dracma) significantly exceeded (ZP684) in the autumn season in all studied traits.

(ZP684) was significant in the spring season, except for the number of rows in the ear where the differences were insignificant.

The difference in plant density had a significant effect on all traits and both autumn and spring seasons.

The highest values of the studied traits were recorded in the experiment low plant density (57142 plant / ha) compared to plant density high (142857 plant / ha) , which got the lowest values for both seasons.

Data Type

Conference Papers

Record ID

BIM-1250851

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