Investigation And Analysis Of Camellia Oleifera Fruit Drop Reasons In Guangxi

Camellia is an important woody oil plants in China, it is with oil palm, olive, coconut along one of the four lard source tree species in the world.80% of the world’s Camellia resources distributed in our country. Guangxi existing differential area is large, is the third largest oil-tea advocate next to Hunan and Jiangxi provinces, but the per unit area yield is not ideal. With the continuous development of Camellia industry, growing in the production of all kinds of problems, including fruit drop problem is an influence of Guangxi differential output problems of ascension. Therefore, explore the reasons of Guangxi differential fruit abscission, integration of effective prevention and treatment of fruit abscission of the existing methods, and on this basis to breakthrough innovation, to create their own a set of practical, effective prevention and control of fruit abscission of the countermeasure, has become the current urgent task. This paper aims to our Hezhou, the north-south flow of Sanjiang county and city, west basins in east Guangxi baise, Guangxi Liuzhou city each fruit growth cycle of the collection, observation, anatomy, statistics, analysis of Guangxi fruit abscission of the major and minor reasons, and integrated prevention and control of fruit abscission of the existing research results, combined with the actual situation of Guangxi, to find a set of relatively complete Camellia fruit drop of prevention and cure. The survey sample selecting our Hezhou Shilong town new phoenix village, Zhongshan county, Guangxi, north and south stream, Zheng town double village, west Guangxi baise tianlin anding township eight new village, Sanjiang county north Guangxi Liuzhou city dou jiang township Xinzhai village, Guizhong Liuzhou city central three river forest there was a lake Guangping, based on the sample of plant diseases and insect pests, soil, climate, physical survey four factors for Guangxi fruit abscission of the main reasons. The results of the survey show that:(1) The Camellia of Guangxi early fruit drop the main reason for the physiological fruit drop. The fruit abscission rate up to 58%. This by itself of the physiological characteristics and plant diseases and insect pests occurrence. Half mad, bituminous coal, mulberry parasitic disease through the broken soil nutrients, such as blocking methods such as photosynthesis influence differential physiological condition. In addition to the plant diseases and insect pests, Oleifera physiological indexes also old, nutrients, sunlight, temperature, ventilation, and many other factors, these factors single role or work together ultimately change oil-tea physiology caused a lot of fruit.(2) Guangxi mid-term, plant diseases and insect pests of fruit drop the main reason for the late. Fruit drop the highest rate of 24% and 33% respectively. Direct effects on tea fruit fruit main disease for anthrax and soft rot, the main insect pests for elephants and differential measurements moth, moth, leaf-eating pests and tea pests borer moth drilling pile of sand. In addition, the small green leafhopper have serious occurrence in local. Camellia as immediate harm tea fruit, resulting in a large number of fruit branch, leaf-eating pests and drill decayed pests are seriously affected the oil-tea physiological role, lead to differential resistance weakened and fruit drop.