穴格大小對菊花穴盤苗生長之影響

Effect of Cell Sizes on Growth of Chrysanthemum Plug Seedling

張致盛(Chih-Sheng Chang) ； 易美秀(Meei-Shiouh Yih)

《臺中區農業改良場研究彙報》 51期 (1996/06) Pp. 9-20

https://doi.org/10.6956/BTDAIS.199606.0009

摘要

以黃秀芳、黃精進及阿萊粉三種品種菊花插穗，利用72格、128格及200格三種穴盤與砂床苗進行育苗，比較不同穴格大小之穴盤苗與砂床苗插穗發根、水分逆境及定植田間後生長之差異。由結果顯示，在扦插後第16天調查，72格與128格穴盤苗發根數較砂床苗多，根長亦較長，而大穴格穴盤苗發根亦較小穴格佳。在定植後連續乾水分逆境處理顯示，穴盤苗在乾旱及湛水逆境下生長點萎凋現象發生較慢，在穴盤苗中以72格幼苗生長點發生萎凋最緩，128格次之，200格最快。定植田間株高與節數之比較，在摘心前以72格穴盤苗株高生長較快，其次為128格與200格，砂床苗最緩；但至停止電照前調查，摘心模式栽培以砂床苗最緩，三種穴盤苗間並無差異，不摘心模式一般以72格及128格兩種處理之株高最高，200格次之，砂床苗最低，栽培穴盤苗可縮短田間栽培期。考量栽培環境與生產成本，在台灣地區生產菊花穴盤苗以128格穴盤育苗較為適當。

關鍵字

菊花 ； 穴格大小 ； 穴盤苗 ； 生長

並列摘要

Chrysanthemum (Dendranthema×grandiflora Tzvelve.) cultivars ”Yellow Shuho”, ”Yellow Gen-Chiang” and ”Ah-Lai Pink” were used in this experiment. The seedlings were nursed in three plug tray sizes 72, 128, and 200 cells. The traditional raised model of sand bed seedling was used as the control. The root length and root number, tolerant water stress capability, plant height and node growth rate after planting in field were investigated.The results indicated that the seedlings in 72 and 128 cells plug had better rooting on the 16th days after cutting and the root number was more than that of sand bed seedling. Under continued dry and flooding stress treatments, the wilting of plug seedling growing point was slower than that of sand bed seedling. Because the plug seedling at transplanting stage could maintain root system in good condition, the lager cell size plate produced plug seedling slower than that of smaller. In both culture models of pinching and non-pinching, the plant height growth rate of plug seedling were faster than that of sand bed seedling. Using plug seedling could shorten culture period. In pinching culture model, seedling plant raised in lager volume plug (72 cells) had taller plant height than that in small volume plug (128 and 200 cells) before pinching. The plant height was not affected by cell size after pinching. In non-pinching culture, seedling raised in large volume plug had taller plant height and more node number than small volume plug. Based on the seedling quality and production cost, the 128 cells plug is recommended for chrysanthemum seedling production in Taiwan.

並列關鍵字

Chrysanthemum ； cell size ； plug seedling ； growth