摘要
以淮枝 (抗裂 )、红皮糯 (较易裂 )和白皮糯 (极易裂 ) 3种裂果易感性不同的荔枝果实为试材进行研究 发现荔枝果皮组织结构与抗裂程度有关 ,其中在果皮细胞形状、细胞大小、海绵状组织差别最显著 ;最抗裂的淮枝果皮细胞大小均匀、内果皮细胞轮廓清晰、海绵状组织网络清晰整齐空隙较小 红皮糯细胞分裂停止比白皮糯晚 ,因而形成的果皮较大 果皮大有助于缓解假种皮生长对果皮造成的压力 ,减少裂果的发生
Fruit skin samples of three cultivars varying in crack resistance were used for the studies. They were ‘Huaizhi'(crack resistant), ‘red skin Nuomici'(medium crack resistant) and ‘white skin Nuomici'(easiest to crack). Differences were observed in skin structure related to the crack resistance. In this context, the cell shape and cell size, and the sponginess of the mesocarp tissues were the most prominent characters. Fruit skin cv. ‘Huaizhi’ that most resistant to crack had uniform cell size, distinctive cell shape and clear network of the spongy tissues with less intercellular space in its mesocarp. Cell division in the skin of cv. ‘red skin Nuomici’ terminated later than cv. ‘white skin Nuomici’, and which resulted that ‘red skin Nuomici’ had thicker and larger size of fruit skin than ‘white skin Nuomici’. Larger and thicker fruit skin produced a cushioning effect on aborbing the growing stress of an aril, and thus minimized fruit crack. The probable reason why ‘Huaizhi’ skin which terminated early in cell division resisted to crack was the different skin structure.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2000年第2期10-13,共4页
Journal of South China Agricultural University
基金
广东省"九五"攻关资助项目 !(96 2 2 0 41 0 1 )
