@article{oai:nodai.repo.nii.ac.jp:00000470, author = {野口, 有里紗 and 奥田 好美 and 市村 匡史 and Arisa, Noguchi and Yoshimi Okuda and Masashi Ichimura}, issue = {1}, month = {2016-04-20}, note = {一段密植栽培において高濃度養液処理を開始する時期の違いが,トマト果実の収量と品質に及ぼす影響を検討した。培養液濃度を高くすることで高EC溶液を作成し,処理を行った。葉の水ポテンシャルは処理により低下し,第一花開花時処理で最も低くなった。葉の水ポテンシャルは対照区では日中と夕方に差はみられなかったが,高濃度培養液処理を行うと日中よりも夕刻時に低くなった。第一花開花期に処理を行うと果実糖度が11度に上昇したが,果実重量が減少し,同時に尻腐れ果の発生が増加した。第一花開花後29日に処理を行ったところ,糖度8の果実が得られることに加えて,果実重量の低下と尻腐れ果の発生が抑制された。これらの結果から,一段密植栽培では第一花開花後およそ30日に高濃度培養液処理を行うと高品質な果実が得られると考えられた。, Effect of high electrical conductivity (EC) of nutrient solution at different development stages on yield and fruit quality were investigated in tomatoes grown with a single-truss high density planting system. High EC was established by increasing the concentration of nutrients solutions. Water potential of tomato leaves was decreased with the high EC treatment, being the lowest when the high EC treatment was initiated at anthesis of the first flower. Water potential of leaves was lower in the evening than around noon in high EC treatments, while these did not differ between times of day in control. The high EC treatment initiated at anthesis of the first flower increased the total soluble solids of fruit from 6.8 to 11.0 Brix%, but decreased fruit weight and increased the occurrence of blossom-end rots. Initiating the high EC treatment 29 days after anthesis increased the fruit Brix% higher than 8.0 Brix%, and mitigated the detrimental effects of the high EC treatment on fruit weight and blossom-end rots. These results suggest that high EC treatment initiated about 30 days after anthesis can be effective for the production of high quality tomato fruits with a single-truss high density planting system., E, 2, KJ00007966920, 論文, Article}, pages = {9--13}, title = {一段密植栽培トマトの果実品質に及ぼす高濃度培養液処理開始時期の影響}, volume = {57}, year = {}, yomi = {ノグチ, アリサ and オクダ, ヨシミ and イチムラ, マサシ} }