Effect Of Different Media On The Survival Rate, Growth And Physiology Of Camellia Oleifera Seedling

In this paper, the relationship between cultivate medias with survival rates,growth and physiological of cheracteristics C.oleifera were studied, Mainly to filterout the best suitable for seedlings growing media. The experiment plots located inHepeng town, Shucheng county and hefei Anhui province. Through the testing ofdifferent media on C.oleifera cuttings and transplanting shoots, survival rate, growthand photosynthetic characteristics of seedlings. The results show that the matrix Ⅵmost favorable to the growth of C.oleifera seedlings. Details are as follows:1. The survival rate of cutting in the perlite was the highest,95.33%. Followedby perlite+peat （4:6）, it was92.19%. The shoots rates in the above two media werehigher:32.65%,29.69%. The test of Shucheng cutting showed that: the cuttingsurvival rate in the sand was the highest in6media,99.33%, followed by50%sand+50%yellow soil, the survival rate was98.67%.2. The lowest survival rate of cutting transplanting shoots （the bare root wascutting in the seedling place and survived for a short time, then transplanted to acontainer media）was mediaⅠ （the control group,100%original media-the peat soil）.The average value,46.67%. The highest transplanting survival rate was mediaⅡ（80%of the original media+20%yellow soil） and media Ⅳ（90%of the originalmedia+10%yellow soil bio-organic fertilizer （3kg per cubic meter））. The averagevalue was96%. Followed was media Ⅶ (90%of the original media+bio-organicfertilizer （3kg per cubic）+Ai Beisi slow-release fertilizer （2kg per cubic meter）, thesurvival rate was94.67%.3. In the experiment, the growth of transplanting shoot in9media were analyzed.Number of leaves: the most leaves was13in media Ⅵ[90%of the original media+10%yellow soil+bio-organic fertilizer （3kg per cubic meter）+Ai Beisi slow-releasefertilizer （2kg per cubic meter）], the worst was7in media Ⅳ. Shoot length: mediaⅥreached a maximum of1.74cm, mediaⅠ was the worst of0.38cm. Seedling height:mediaⅥ reached a maximum of16.28cm. MediaⅠ was the worst of12.8cm. Stemdiameter of seedlings: mediaⅥ was the best,reaching0.44cm. MediaⅤ was the worstof0.26cm. Root：The three indicators of the length of taproot, the number of fibriland the total number of roots in media Ⅶ were the more prominent. MatrixⅢ and Ⅷwere benefical to increase the weight of underground plant. Comprehensiveevaluation, effect of mediaⅥ on increasing leaves, stem height, shoot weight, the weight of the whole plant was superior to other media, and the worst effect wasmediaⅠ.4. In the experiment, outside growing was beneficial for the root system growth.Plant root growth required a relatively stable environment, while maintaining themoisture, temperature and humidity, ventilation stable. It was not suitable forseedlings growing on suspending beds.5. The determination result of chlorophyll content and net photosynthetic rateshowed that the contents of chlorophyll a, b and total chlorophyll in mediaⅥ outdoorwere the highest, the value was14.08（mg/L）、5.81（mg/L） and19.89（mg/L）respectively. The average value of the net photosynthetic rate, transpiration rate inmediaⅤ [80%of the original media+20%yellow soil+bio-organic fertilizer （3kgper cubic meter）], Ⅷ [90%of the original media+bio-organic fertilizer （3kg percubic meter）+Ai Beisi slow-release fertilizer （2kg per cubic meter）] was2.99,0.49([μmolCO₂/（m². S）] and4.14,0.80[μmolH20/（m².S）] respectively.6. The results of transplanting survival rate showed that the average survival rateof media Ⅲ、Ⅳ was96%, followed by mediaⅧ,94.67%. MediaⅠ was the lowest,only46.67%. MediaⅠ lack of mineral and nutritional composition may not meet thegrowth needs of seedlings. As a result of the maximum saturated water content,planting survival rate in mediaⅠwas the lowest; while the moisture absorption mediaIⅢ, Ⅳ was small, the plant survival rate was higher. The results indicated that the twophysical properties were the key factors to affect the survival rate of seedlings.through data analysis of the survival rate and growth, it is suitable for seedling growthwhen the unit weight of media was0.3-0.4.7. The survival rate of C. oleifera in five soils were as follows:Ⅴ（yellow-brown）>Ⅵ （loam）=Ⅲ（sandy loam）>Ⅰ （clay）> Ⅱ（sand）.