- Due to many biotic and abiotic factors, crop seeds may not get fully filled at harvest. For example, lack of proper nutrition, lack of rain, late planting, physical damage, etc.
- Based on their experience, farmers usually use the color, size, and shape of the seed to judge the fullness of the seed.
- For crop seed approval, we use a purity test.
- For grain or food crop approval, we usually use physical observations (filled vs unfilled).
- N.B. This wheat grain filling scale (degree) could be for processed or unprocessed seeds.
- Processed: i.e. purity test is undertaken
- Unprocessed: i.e. the seed may not have undergone a purity test, but even so we can judge it as fully filled, half-filled, etc.
Do we have scientific degrees or scales for wheat grain filling?
Please include references to be referred.
Dear @Alem Redda Please check the below mentioned links; hope you will find the desired parameters:
https://www.researchgate.net/publication/230009671_Evaluation_of_Grain_Filling_Rate_and_Duration_in_Bread_and_Durum_Wheat_under_Heat_Stress_after_Anthesis
https://www.sciencedirect.com/science/article/pii/S0378429015301088
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6312219/
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0230689
https://academic.oup.com/jxb/article/66/21/6715/2893311
https://bmcplantbiol.biomedcentral.com/articles/10.1186/s12870-020-02479-0
Dear Dr, Arbind K. Choudhary, thank you so much for sharing such valuable sources with us. I have read some of the sources roughly. They mostly need laboratory experimentation. Do we have some scales that could be used directly in the farmers' wheat field to judge the % of grain filling?
Thank you for your understanding!!!
STAY BLESSED!!!
Dear Dr Alem Redda . See the following useful RG link: Article Different grain-filling rates explain grain-weight differenc...
Kindly see also the following very good RG link: Article Association of grain-filling characteristics with grain weig...
Also check please the following good link: https://hal.inrae.fr/hal-02621305/document
Please see the article “Association of grain-filling characteristics with grain weight and senescence in wheat under warm dry conditions” following the useful link:
https://www.sciencedirect.com/science/article/abs/pii/0378429084900364
Choosing the good variety within the ideal environment and the ideal date for cultivation and nitrogen fertilization within the dates needed by the plant
Choosing the good variety within the ideal environment and the ideal date for cultivation and nitrogen fertilization within the dates needed by the plant
Choosing the good variety within the ideal environment and the ideal date for cultivation and nitrogen fertilization within the dates needed by the plant
I wonder which is better how clean the compost or when the compost is clean
I wonder which one depends on the time standard for bulbs, that the evolutionary standard in plant management and service
I wonder which one depends on the time standard for bulbs, that the evolutionary standard in plant management and service
I wonder which one depends on the time standard for bulbs, that the evolutionary standard in plant management and service
Dear @Alem Redda I am perhaps not clear as to whether you are interested to know about the proportion of individual spike filled with grain under field condition or the number of spikes (per square meter) that remain unfilled. Under heat stress condition, empirical observations suggest that some proportion of spikelets remain unfilled in wheat. Under heat stress, this also occurs in chickpea and pigeonpea. It is my personal obsérvation that such unfilled pods in chickpea turn yellow earlier while their counterparts still stay green. In pigeonpea, unfilled pods turn yellowish grey, and fall down. I think something akin to those in chickpea and pigeonpea might also be happening in wheat. Such morphological markers need to be investigated in wheat.
PS. Being a legume breeder, I tried to extrapolate my observation on pulses to wheat; however, wheat and chickpea qualitatively differ in growth habit (determinate vs inderminate).
Dear Dr. Arbind K. Choudhary, thank you for your valuable participation.
My concern is "about the proportion of individual spike filled with grain under field condition", so as to help farmers on the field condition just by physical observation.
STAY BLESSED!!!
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