under the condition of water stress,delay the time of leaf wilting up to 1~1.8 days,advance recovery time from wilting up to 0.2~1.2 days after irrigation,decrease wilting coefficient by 21.95% ~58.04%,amplify net photosynthesis rate by 3.84%~230.72%.
By using mixture of distinct concentration of gibberellin, streptomycin and 4-CPA to treat “ZANA” grape flower and fruit cluster thinning circumstance, the rate of seedless fruit neach 99.4-100%, the average weight per fruit is 4.04-5.22g, the soluble substance content increases 2-3%, and the mature stage advance 7-10 days.
The results showed that dipping tomato's flower with the 2,4-D of 5~10mg/L can advance greatly the rate of fructification and weight of the single fruit,while the treatment with the 2,4-D of 15~25mg/L made the rate of the misshapen fruit rise,though it also advanced the rate of fructification and the weight of the single fruit.
Among them the mixed solution(GA3150 mg/L,citric acid 600 mg/L and Al2(SO4)3 200 mg/L) was the best,which can improve blossom rate obviously and make the date of blossom in advance for 3 to 4 days.
Synthesized the above result, from three respects including the social benefit, economic benefits and the limited amount index of nitrate on celery, it is considered synthetically that the best proportion of the output of the celery N243P97W463ois ideal select of the testing ,Which can be used as the theoretical foundation on optimization grouping of water-fertilizer of vegetable in order to advance the process of high-quality vegetables in Bashang region
In particular, when the new shape parameter of the distribution under progressive stress is given (or estimated in advance), the closed forms of these estimators are relatively simple and are numerically accessible on computers.