Effect Of Cultivation Measures On The Growth And Quality Of Walnut

Walnut is one of the world's four largest fruit,with the development of society,the nutritional value of walnut has been recognized more and more.The production of high quality walnut plays an important role in the development of walnut industry.However,because of the unreasonable cultivation technology and extensive management,the yield and quality of walnut nut were seriously affected.In this study,the effects of different cultivation measures on the growth,yield,and quality of walnut were studied by using "delicate"walnut as the test material.The results are as follows:(1)Black plastic film and Fertilization Measure Management of walnut,bud,male flowers and female flower shedding scales,the opening time of 3-5 days in advance compared with the control group,male flower stage and stigma dry period are 1-2 days late;pruning can delay walnut germination,flowering,pruning the female male flowering time slightly later than the control group,PP333 and pollination of walnut bud had no significant effect.(2)The different cultivation measures in favor of "fragrance" walnut growth,the combined application of fertilizers on Walnut growth inhibition effect is the most significant new growth slightly length,base width and central thickness than that of the control group increased by 61.36%,21.09%and 24.75%respectively,the application of Paclobutrazol on the growth inhibitory effect of walnut new growth is not obvious,slightly length,base width and central thickness than that of the control group decreased by 3.33%,2.21%and 0.61%respectively.(3)Different cultivation measures "can improve the yield of fragrance" walnut,which yield the highest fertilization,the average weight compared with the control group increased 28.20g and 30.30g respectively;Followed by pollination,the average nut and nucleolus weight per plant were higher than that of control group by 38.1g,16.2g;And fertilization of Paclobutrazol had little effect on plant the yield per plant,the average weight of nuts than those in the control group only increased 0.30g,nucleolus increased 10.50g.fertilizer plant growth regulator Paclobutrazol can improve the quality of nuts,average fruit weight and kernel weight were higher than the control group 0.3g and 1.17g,kernel rate is 7.25%higher than the control group;black plastic film can significantly improve the smooth degree of sweetness,nuts,nut shell and kernel rate.(3.30%higher than the control group).(4)Pruning can increase the yield of nuts and nucleolus,the most significant is cutting short pruning effect,nut quality is maximum(7.88g),kernel rate is maximum(57.02%);soil potassium fertilizer could increase the yield of walnut,kernel rate increased 10.77%.(5)flower thinning can significantly improve the nuts the quality of flower thinning processing quality and quality of fruit were nuts nucleolus were 14.39g and 8.25g,that than the control group and high 1.15g 1.12g respectively,kernel rate 3.48%higher than the control group,different pollination modes have different effects on the quality of nuts Obviously,the effect of cross pollination,the maximum fruit weight(14.89 g),nuts(8.81 g)and maximum quality kernel rate maximum(59.17%)(6)Cultivation and management measures has little effect on the "fragrance" nut shape,the shape is oval or round,nut based partial fruit base,rough,uneven base;the shell color yellow or yellow white,little brown,shell surface is smooth,a little moment fossa;compared with the control group,different cultivation measures of nuts of transverse and longitudinal diameter difference,than the control group increased significantly.The effect of artificial pollination on the diameter of the nut was the largest,and 1.24mm was the same as that of the control group,and the effect of applying Paclobutrazol was the least,only 0.06mm.The largest impact on the diameter of the nut is also artificial pollination,compared with the control group increased by 2.76mm;pruning effect was not obvious,only increased by 0.16mm.Nucleolus color different cultivation measures are mostly yellow white or pale yellow,with small dark color yellow or brown,the cultivation and management measures full of fruit,nuts entrance sweet,no astringent taste,smell fragrant,easy to the whole kernel.