丝瓜砧木对夏秋连作苦瓜产量及品质影响

为了解苦瓜嫁接对果实品质的影响和筛选优质苦瓜嫁接砧木，以‘翠绿’苦瓜为接穗，以5个自育及3个省内外常用丝瓜为砧木，开展不同砧木嫁接对苦瓜农艺性状、产量和果实品质的评比试验。结果表明：不同丝瓜砧木对接穗苦瓜成活率、主蔓第一雌花节位、枯萎病发病率等的影响均有一定差异，对接穗苦瓜产量影响差异显著。参评的8个砧木的接穗苦瓜在水分、Vc、蛋白质、钙、纤维素等含量上与实生苗无显著差异，以‘砧-6’与‘砧-14’为砧木嫁接的苦瓜中，不同氨基酸的含量均基本上高于实生苗。综合分析表明：‘砧-6’（银砧1号）和‘砧-14’（银砧2号）适合作为‘翠绿’苦瓜的嫁接砧木，可作为夏秋苦瓜嫁接砧木的新品种使用。

Effect of Luffa Stocks on Yield and Quality of Summer-Fall Continuous Cultivation Balsam Pears

To investigate the effect of luffa stocks on yield and quality of balsam pears and optimize high quality luffa stocks for balsam pears, the competitive tests of main agronomic traits, yield and quality of balsam pears were made on the five self-fertile and 3 common used luffa stocks ,and use ‘CuiLv’ as the cion. The results showed that different luffa stocks had different effect on the survival rate, first female flower position, as well as the withering disease rate. They also significantly impacted the yield of balsam pears. No significant variations were found on the content of water, Vc, protein, calcium, cellulose between 8 grafted balsam pears and self-rooted balsam pears. The amino acids evaluation indicated that the ‘Stock-6’ and ‘Stock-14’ were higher in most amino acids content than the self-rooted balsam pears. Overall, the ‘Stock-6’ (Silver Stock 1) and ‘Stock-14’ (Silver Stock 2) were recommended for summer-fall rootstocks on the balsam pears.