摘要
为了掌握不同砧木对西瓜产量、品质及矿质元素吸收的规律,本试验以南瓜(京欣砧2 号)、瓠瓜(亲抗水瓜)、野生西瓜(勇士)为砧木,嫁接早佳 84-24 西瓜,测定分析了西瓜的形态指标、产量、品质指标和对氮、磷、钾、钙、镁的吸收.结果表明:3 种砧木均提高了西瓜的单瓜重,其中京欣砧2 号砧木嫁接西瓜的单瓜重最大,为3.75 kg.砧木类型对西瓜果实的可溶性固形物含量无显著性影响,但维生素C含量均降低,番茄红素含量增加,亲抗水瓜嫁接西瓜果实中的瓜氨酸含量最高.京欣砧2 号显著提高了植株对氮、磷、钾、钙、镁的吸收,在3 种砧木中表现最好,亲抗水瓜促进了氮、磷、钾的吸收,勇士促进了氮、钾、钙、镁的吸收.因此,京欣砧2 号是西瓜生产中适宜的砧木.
Abstract
In order to understand the influence of different rootstocks on watermelon yield,quality and ab-sorption of mineral element,this experiment used pumpkin('Jingxinzhen No.2'),gourd('Qinkang-shuigua'),and wild watermelon('Yongshi')as rootstocks,grafted with Zaojia 84-24 watermelon.Morpho-logical indicators,yield,quality indicators,and absorption of nitrogen,phosphorus,potassium,calcium,and magnesium in watermelon were measured and analyzed.The results showed that all three rootstocks increased the fruit weight compared with the self-rooted watermelon,with the largest fruit weight of watermelon grafted onto'Jingxinzhen-2',being 3.75 kg.Rootstocks had no significant effects on the soluble solids content.However,compared with the self-root watermelon,the vitamin C content of grafted watermelon decreased,while the lyco-pene content increased.Watermelon grafted on the"Qinkangshuigua"rootstock exhibited the highest citrulline content.'Jingxinzhen-2'rootstock increased the absorption of nitrogen,phosphorus,potassium,calcium and magnesium.'Qinkangshuigua'rootstock increased the absorption of nitrogen,phosphorus and potassium,while the'Yongshi'rootstock increased the absorption of nitrogen,potassium,calcium and magnesium.Therefore,"Jingx-inzhen No.2"can be recommended for watermelon cultivation.
基金项目
西藏自治区科技计划(XZ202202YD0002C)
青海省中央引导地方科技发展专项(2022ZY017)
NETL
NSTL
万方数据