تأثير نقع البذور بالكوبلت و حامض الاسكوربيك في حاصل الماش و مكوناته ونوعيته تحت تأثير ظروف الاجهاد المائي

الملخص EN

An experiment was carried out in the Field Crop Science Department-college of Agricultural Engineering Sciences University of Baghdad Al-Jadiriyah during autumn seasons of 2017, to study the role of Cobalt and Ascorbic acid with concentrations gradient in reduction the adverse effects of water stress in yield, its components and types of the local species of Mung bean crop )KHADRAWI).

In the field experiment, R.

B.

C.

D design was used in the arrangement of split- plot with three replications.

The drought treatment (50, 60 and 70% ) depletion of available water occupied the main plots its symbol I 1, I 2, I 3 respectively, while seed soaking treatments of cobalt Co (4, 8 and 12) mgl-1 and ascorbic acid AsA (40, 50 and 60) mgl-1 its symbol (Co 1, Co 2, Co 3, AsA 1, AsA 2, AsA 3).

As well as the two comparison treatments with seed dry and distilled water sequentially sub-plot, the seeds were soaked for 24 hrs, and dried to its original moisture.

The results show no significantly differences between irrigation treatments I1 and I2 in most of studied traits during autumn 2017.

While depletion treatment 70% of available water gave lowest average for all studied traits except the protein content in the seeds which gave the highest protein content reached 20.12% and the soaking treatments with Cobalt CO3 significantly exceed in the number of seeds in pod reached 8.23 seed.

pod-1, weight of 100 seed 5.93 gram, seed yield 1.13 T.

H-1 biological yield 3.82 T.

H-1 and protein content 20.23% .

While soaking treatment with Cobalt (Co) significantly exceeds giving the highest average of pod length and number of pods in plant reached 6.11 cm and 137.44 pod.

plant-1 respectively, and not significantly differ from soaking treatment with Ascorbic acid (ASA 3) that achieved the highest average of pod length, number of pods in plant, weight of 100 seed, total yield and biological yield that reached 6.74 cm, 100.22 pod.

plant 6.11 gram, 1.16 T.

H-1 and 3.44 T.

H-1 respectively.

It also found that the interference between moisture depletion treatments and Cobalt and Ascorbic acid was significant in all studied traits except pod length so we recommend the availability of apply irrigation in (60% depletion of available water) without needing for irrigation in (50% depletion of available water) without any significant differences in seed yielding under condition of water limitation and also availability of decreasing adverse effects of water insufficiency in Mung bean production via using soaking successively with Cobalt 12 mg.

L-1 concentration and Ascorbic acid 60 mg.

L-1 to mprove its ability of facing water stress.