Recently my experiment on plant growth effect of chickpea with rhizobia isolate and chemical fertilizer.This experiment on pot at polyhouse.Chemical fertilizer and inoculum containing pot plant leaf end show yellow color.But which pot no added chemical fertilizer, only given inoculate that pot plant leaf are green. At first i think it may be potassium deficiency, but which pot no add any fertilizer thats pot no deficiency show.Then i think it may be over fertilizer dose is the responsible this fact.
I want to know what are the reason this yellow color of chickpea leaf of end.Please anyone help me to give suggestion
Thanks advance to him/her which researcher give me advice.
hi, dear friend
sometimes the signs of deficiencies are similar to over doses. i had this experiment in N- fertilizers. also. it maybe due to increasing EC by adding fertilizers. relative humidity can be considered, too.
I agree with Saeid Davazdahemami, The inoculum seems to have induced higher than optimum EC. You may try with reduction of electrolytes in the inoculum.
Mirza Arshad Ali Beg
I think you have to reducte of electrolytes in the inoculum.
Reduction of electrolytes and addition of a pinch of zinc sulphate in the inoculum should do you wonders. Publish the results if the suggestion bears fruits.
Mirza Arshad Ali Beg
If I read carefully and understand correctly, the pots that received only inoculum were fine ('But which pot no added chemical fertilizer, only given inoculate that pot plant leaf are green.'). Hence the electrolytes in the inoculum should not pose problems.
I agree with the suggestions made by Saeid Davazdahemami. Looks like the mineral fertilizer dose was just too high. An induced deficiency could also be involved, but merely when some treatments induce such a good growth that limiting nutrients are further diluted. Doesn't seem likely in your case as the experiment as at an early stage I suppose.
Excess nutrients/salts usually induce chlorosis and necrosis along the margins and/or on leaf tips. The necrosis that develops often looks more whitish (due to the salt accumulated) than in other cases. Could you share a photograph?
I have gone through the response from other colleagues. Chickpea is very sensitive to stagnated water or over watering and under such situation yellowing has been observed. There is one assumption that due to nodulation in pulses, these crops become more sensitive to excess water and therefore irrigation frequency is reduced. Small quantity of water as supplemental irrigation to rain-fed chickpea during critical stages of growth can be provided. In potted experiments, sometimes overwatering may lead to yellowing, provide proper drainage. Stop the water and observe, if needed give small quantity. Look into it from this angle and observe.
I agree with Dr. Malhotras suggestions, sometimes we also find yellowing of leaves in the chickpea due to over watering in the pots. In general yellowing of younger leaves you may find when soils are deficient in Fe and Mn similarly deficient of Mo causes yellowing of middle leaves and yellowing of older leaves may be due to deficient of N,K, Mg and Zn. But in your case there was no possibility of deficiency therefore over watering may be the appropriate reason.
what quantity of chemical fertilizer did you use? It seems the chlorotic plants are reacting to fertilizer toxicity, you may need to do a soil or plant analysis test to check the nutrient status or toxicity level of your soil or plant. In the interim I suggest that the level of fertilizer you are using presently should be reduced.
Thank you very much everybody for better suggestion to me. All of them congrates such as: Saeid Davazdahemami. Mirza Arshad Ali Beg , Raheleh Ahmadzadeh Ghavidel , Mirza Arshad Ali Beg , Carlos Ciria , Joska Gerendas, Suresh K Malhotra, J. C. Tarafdar , Falodun Ehizogie.
Have you tried to investigate whether the symptom is because of deficiency of nutrients (e.g. nitrogen), or physiological problems (e.g. water stress)?
Rabium Islam, If you take and share some photos of chickpea symptoms we can assess better the potential cause of plant yellowing. Ultimately the use of the mineral analysis of dry plant tissue can be used to confirm the diagnosis. Once these steps are taken the supplement approach to prevent the issues can be devised and confirmed.
Best Regards and looking forward to see your chickpea symptoms on line. PRH
Waterlogging is a stress on a chickpea crop and when combined with other stresses such as moisture stress, damaged root systems, disease, herbicide injury, or sodic and saline soils can be a disaster. Watering during flowering or podfill when the crop is more sensitive further increases the risk of yield loss. Avoid waterlogging and observe yellowing.
http://www.pulseaus.com.au/storage/app/media/crops/2010_SPB-Chickpea-irrigation.pdf
Dear Islaam
I endorse the statement of Malhotra The prime cause for yellowing of leaves in chickpea is due to N deficiency coupled with moisture stress. Under stress plant is not able take up avilable N from soil or the Rhizobium will be unable to fix atm. N. It happens under stress as well as water logged extreme situations.
- Badges
- Science topic
- Similar topics
- Biological Science
- Biochemistry
- Biomolecules
- Peptides