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The results are as follows:(1) The morphological investigation indicated that the nectaries werelacked on the main nervation, calyx and bract of cotton line 97014 comparedwith TM-1. Alveolate hollow was absent at main nervation of the mature leaf.Results of cytological analysis showed that 97014 lacked nectariferous structure.Where nectary inserted were parenchyma cells, cupped structure and brownnectariferous substance on the lower epidermis were not found.
主要研究结果如下:(1)以棉花无蜜腺品种97014与有蜜腺棉花遗传标准系TM-1为材料,进行形态学比较研究,结果表明棉花无蜜腺品种97014叶片中脉、花萼和苞叶上都缺少蜜腺,成熟叶片叶脉、花萼和苞叶上均无蜂窝状凹陷;组织与细胞切片观察发现,97014缺少蜜腺组织结构,在蜜腺着生处为排列整齐的薄壁细胞,且在下表皮看不到凹陷的组织结构和褐色的蜜腺分泌物。
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hypogenetic:发育不良的
hypogenesis 发育不良 | hypogenetic 发育不良的 | hypogenous 在下着生的
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hypogenous:在下着生的
hypogenetic 发育不良的 | hypogenous 在下着生的 | hypogeum 地下室