Influence of seedling age on tomato (Lycopersicon esculentum Mill.)cplant growth and early yield.

• Main Authors: Huei-Lung Chiu, 邱輝龍
• Other Authors: Woo-Nang Chang
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/58106904783112650790

碩士 === 國立中興大學 === 園藝學系 === 82 === Greenhouse and field experiments were conducted to study the influence of seedling ages (4、6、8 and/or 10 weeks) on growth and early yield of fresh-market tomato. Older seedlings in plug tray (20ml/plug) showed bigger plant size at transplanting in all three cultivars. The root specific activity of seedlings transplanted on November 17, 1993 increased after transplanting, but the root specific activity of 4 week old seedlings transpl- anted on December 2, 1993 were higher than other seedling. Four old seedlings transplanted on November 17, 1993 and December 2, 1993 had the best recovery from transplanting. There was no significanct difference on days to flowering of seedlings transplanted on December 4, 1993 and January 15, 1994 either among cultivars or among seedling ages. The first node of inflorescence(FNI) were not different among cultivars. There was a quardratic response of age upon FNI for seedlings transplanted on December 4, 1993 but the response was linear for seedlings transplanted on January 15, 1994."Known You 202" had the highest early yield for December 4, 1993 transplanting had the highest early yield for January 15, 1994 transplanting. Ten week old se- edlings had the highest early yield for both experiments transpl- anted on December 4, 1993 and on January 15, 1994. The diffreence between three planting seasons were also exam- ized. Seedlings transplanted on September 22, 1993 had the high- est plant height and leaf area. However, seedlings transplanted on November 17, 1993 had the highest number of nodes and leaves. The plant size of seedlings transplanted on December 2, 1993 were significantly smaller than seedlings transplanted in Sep- tember and November .