水稻台南11號播種密度及移植本數對其生產潛力之影響

Effect of Seeding Density and Seeding Transplanting Number on Yield Potential of Tainan No. 11 Rice

劉政侑(Cheng-Yu Liu) ； 陳榮坤(Rong-Kuen Chen) ； 郭介煒(Chie-Wei Kuo)

《嘉大農林學報》 6卷2期 (2009/08) Pp. 67-80

https://doi.org/10.29891/JAFNCU.200908.0006

摘要

本研究以水稻(Oryza sativa)台南11號為材料，探討不同播種密度及移植本數對其生產潛力之影響。以慣行機械育苗作業所使用之育苗箱(30×60cm)進行不同播種密度處理，播種密度分別為每育苗箱播200g、250g、300g及350g之稻種。不同播種密度處理於成苗後，以人工單本植、人工三本植及機械多本插植等三種不同移植本數處理移植至田間，並調查各處理間之產量構成因素及產量變化差異。結果顯示四種播種密度之稻穀產量，以200g播種密度之稻穀產量顯著高於其他三者，一、二期作皆然；不同移植本數之稻穀產量，一期作以三本植處理之稻穀產量為最高，二期作則以多本植之稻穀產量為最高。本研究建議，水稻台南11號機械插秧栽培體系，育苗播種密度宜採每育苗箱200g為佳，不僅可節省稻種成本，且有較佳之生產潛力。

關鍵字

水稻 ； 播種密度 ； 移植本數 ； 產量構成要素

並列摘要

This study is to determine the best seeding density and quantities of transplants for paddy rice (Oryza sativa) No. 11 in and to its agronomic traits. The seedling box apply to current mechanical transplanting of paddy rice seedling was utilized in this test. Each seedling box used different planting densities with 200g, 300g, 350g respectively. We planted for single, triple and mechanical transplanting seedlings for multeity, then observing the physical changes and influences of its agronomic traits in each groups after seedling transplanting. It showed the 200g planting density had better agronomic traits and higher yield than others. Resides comparison of cropping yield in three different transplant quantities, in first-crop paddy rice, the highest yield is Three, second-crop is Multeity. The result suggested the 200g planting density and mechanical transplanting of rice seedling had the best agronomic traits, offering a fine example for paddy rice breeder and agriculturist.

並列關鍵字

Rice ； Seeding density ； Seedling transplants number ； Yield component