ポットカーネーション（Dianthus caryophyllus L.）の輸送を想定した保管中の明暗と温度が小花の萎凋および開花期間に及ぼす影響を検討した．‘グランルージュ’ および ‘マハロ’ の2品種は，保管温度を20°Cとすると，暗黒条件の開花期間は明期のある条件（PPFD；110～214 μmol・m–2・sec–1，12時間日長）に比べ2日以上短くなった．また，輸送を想定した7日間までに萎凋した小花の割合は，両品種とも暗黒条件が明期条件に比べ30％以上高く，‘マハロ’ では萎凋した小花からエチレン生成が認められた．20°C・暗黒条件においても，上記2品種は1-methylcyclopropene（1-MCP）を1000 ppbで12時間の前処理することで，無処理に比べ開花期間が1日以上長くなり，暗黒処理7日後の萎凋した小花の割合が30％以上低くなった．保管温度が10°Cでは...

Excised bean (Phaseolus vulgaris) leaves were used to compare the changes in various carbohydrates during dark incubation in a wilted and turgid condition. After a rapid (less than 1 hour) wilt, leaves were incubated at a constant water content (75% of original fresh weight).The starch content of the wilted leaves decreased faster than it did in the turgid leaves. This accelerated starch loss w...

Fusarium oxysporum f. sp. ciceri (Foc), one of the most important fungal pathogen of chickpea, is a constant threat to this crop plant. In the present study gene expression analysis of chickpea roots during Foc infection was performed using various approaches. cDNAs derived from total mRNA during infection process of susceptible (JG62) and resistant (Digvijay) cultivars, were amplified using ra...

Acidic cloudwater is believed to cause needle injury and to decrease winter hardiness in conifers. During simulations of these adverse conditions, rates of ethylene emissions from and levels of 1-aminocyclopropane-1-carboxylic acid (ACC) in both red and Norway spruce needles increased as a result of treatment with acidic mists but amounts of 1-malonyl(amino)cyclopropane-1carboxylic acid remaine...

This paper examines the role of soil moisture in quantifying drought through the development of a drought index using observed and modeled soil moisture. In Nebraska, rainfall is received primarily during the crop-growing season and the supply of moisture from the Gulf of Mexico determines if the impending crop year is either normal or anomalous and any deficit of rain leads to a lack of soil m...

The present study was undertaken to develop potassium management recommendations that maximize yield and post harvest quality of tomato. Studies were conducted at Faculty of Agriculture, Gomal University, Dera Ismail Khan, KPK, Pakistan during 2008-2009. A pot experiment was designed, which included six potassium fertilizer treatments (75, 150, 225, 300, 375, 450 Kg K2O ha ) with basal doses of...