Looking at the seedlings and ordering the seeds, and watching the ears and ordering the seeds, they are all "very stupid and naïve".
You know why?
First, more than 80% of the yield of wheat comes from the "post-flowering" filling.
Wheat varieties with poor grain filling, not to mention high yields, but more reduced yields.
For example, some scam companies advocate a yield of 1,800 catties per mu and a yield of 1,900 catties per mu, but let the growers actually produce 906 catties and 800 catties per mu, as shown in the figure below.
Second: varieties that are not resistant to rust will reduce yield
Rust (stripe rust or leaf rust) occurred in May, where did the high yield come from? The reduction in production was inevitable.
Third: Late-maturing varieties that are not resistant to dry and hot air will reduce yield
The larger the spike variety, the more susceptible it is to hot and dry winds.
The more late-maturing large-spike varieties are, the more serious the damage caused by hot and dry winds.
The high 1000-grain weight, high bulk density, large grain size and good color that must be approved are the best proof of resistance to dry and hot air.
Fourth: varieties that are not resistant to "withered white ears" will reduce yield
The "withered white spike" caused by rhizome rot is serious, how can it talk about high yield? !
Fifth: "sparse varieties in the field" reduce yields
The approved ears per mu are less than those of other varieties, and the field is "sparse", and the yield will definitely be reduced.
Sixth: varieties with "black and small" grains, reduced yields
The most serious reduction in yield is caused by [underdeveloped root system] and [non-resistance to disease].
Summary: Yield resistance of wheat varieties is the first requirement, and yield increase is the best proof
The so-called "high yield record" of no control variety is a fool.
The so-called "production measurement report" without an official seal is a "private act" of the participants, and their units do not allow it, and their credibility is extremely low.
Only the production measurement of controlled varieties presided over by the relevant departments at or above the provincial level is relatively reliable.
Moreover, only a yield of 200 to 300 catties per mu compared with the control variety is a really good variety. #小麦真科技 ##农业真科技#