籽用西葫芦果皮硬度与籽粒饱满度相关性研究  

Studies On Correlation Between Peel Hardness and Grain Plumpness of Seed-used Zucchini

作　　者：朱红艳[1] 魏照信[1] 张永久[1] ZHU Hongyan;WEI Zhaoxin;ZHANG Yongjiu(Jiuquan Vocational and Technical College,Jiuquan 735000,Gansu,China)

机构地区：[1]酒泉职业技术学院,甘肃酒泉735000

出　　处：《中国蔬菜》2021年第7期69-73,共5页China Vegetables

基　　金：甘肃省民生科技专项科技特派员专题(18CX3ZF018-子课题3);酒泉市科技支撑项目(2060402)。

摘　　要：采用邵氏硬度计测定了2个籽用西葫芦姊妹系果皮硬度,并进行切片观察,同时测定籽粒饱满度,分析籽用西葫芦果皮硬度与籽粒饱满度的相关性。结果表明:籽用西葫芦姊妹系果皮硬度差异极显著,Q212-6-3-1果皮坚硬,果皮硬度为30.3 HD,表皮10个柱状细胞宽度3526.7 μm,外果皮厚度3792.6 μm,中部中果皮厚度27700.0 μm,与软皮的Q212-6-3-2差异达到显著或极显著水平;硬果皮果实的籽粒百粒重极显著高于软果皮果实。果皮硬度与籽粒百粒重呈极显著正相关,果皮硬度越高,籽粒百粒重越大,籽粒越饱满。因此,可将果实硬皮作为籽用西葫芦育种的主要目标性状。This experiment measured peel hardness of 2 seed-used Cucurbita pepo sister lines by shore hardness tester,and carried out slice observation and grain plumpness measurement.The correlation between peel hardness and grain plumpness was also analyzed.The results showed that there were extremely significant differences in pericarp hardness of Cucurbita pepo sister lines.The peel hardness of Q212-6-3-1 with hard peel was 30.3 HD.The width of epidermis 10 columnar cells was 3526.7μm.The epicarp thickness was 3792.6μm.The thickness of mid mesocarp was 27700.0μm.Its difference with soft peel Q212-6-3-2 was significant or extremely significant.The hundred-grain weight of hard peel fruit was extremely significant higher than that of the soft peel fruit.Pericarp hardness and hundred-grain weight presented extremely significant positive correlation.The harder of the peel,the bigger of the hundred-grain weight,the more plump of the grain.Therefore,hard pericarp could be taken as a major target trait for seed-used Cucurbita pepo breeding.

关 键 词：籽用西葫芦 果皮硬度 果皮结构 籽粒饱满度 相关性 

分 类 号：S642.6[农业科学—蔬菜学]