摘要
通过对广西13个龙眼品种调查及对龙眼树皮的测定分析,明确了荔枝泥蜂透翅蛾(Sphecosesialitchivora)对龙眼不同品种为害有选择性,其中东壁、乌龙岭、普明庵3个品种受害较重,而目前广西推广种植的大乌圆、石硖、储良等品种受害仍较轻;不同龙眼品种受害轻重与其树皮的厚薄、树皮中含石细胞团平均厚度、石细胞团占树皮横切面积及含单宁细胞所占树皮横切面积比例大小有关.龙眼品种树皮越厚,石细胞团厚度越小、石细胞团及单宁细胞占树皮横切面积比例越小者,受害越重.
Studies were carried out to investigate the resistance of 13 longan varieties of Guangxi and longan barks murcerate. The result showed that different varieties of longan were damaged by Sphecosesia litchivora Yang and Wang in different degrees. Some varieties such as Dongbi,Wulongling and Pumingan were damaged seriously, while the popular varieties such as Dawuyuan,Shixia and Chuliang were damaged slightly. It was found that the degree of damage was related to thickness of longan barks, mean thickness of brachysckids, ratios of grit and tannin cells to cross section of barks. The more thick of longan bark, the smaller thickness of grit, and the lower ratios of grit and tannin cells to cross section of barks, the more serious damage of the varieties.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2003年第1期30-33,共4页
Journal of South China Agricultural University
