What causes stem discolouration and how to avoid it?
Stem discolouration has a number of causes that may or may not be negative. Of course, no amount of stem discolouration looks attractive in a glass vase and the flower will be viewed as old. There are various causes for stem discolouration:
- Low pH: the optimum pH level of the vase water is between pH 3.5 and 5.5. If soft water is used, it is okay for the pH level to go down to under 4 pH in combination with container/vase products. With soft stems, this may lead to stem discolouration. This type of discolouration has no effect on the vase life because the tissue stays intact.
- Chlorine stems on Gerbera: chlorine is often added to the container/vase water of Gerbera. This product is very aggressive to plant tissues and must therefore be extremely accurately dosed as overdosing causes irrevocably brown stems. This discolouration and deterioration of the stem tissue due to chlorine does have a negative effect on the vase life.
- Surfactant: surfactants are often used to increase water absorption. These products dissolve the waxy layer on the stems, for example on Dianthus. Despite stem discolouration this does not affect their durability and vase life.
- Micro-organisms: explosive micro-organism growth, such as in containers and vases holding a lot of cut flowers or especially with damaged flowers, branches and mixed bouquets, will cause discolouration of soft stems and negatively affect vase life.
What can you do?
- Scrub and wash containers and vases before and after use
- Prevent the growth of micro-organisms with better hygiene routines
- Cut 5-10 cm off the stem
Ni nini husababisha mabadiliko ya rangi ya shina na jinsi ya kuiepuka? Kupoteza rangi ya shina kuna sababu kadhaa ambazo zinaweza kuwa hasi au zisizo mbaya. Bila shaka, hakuna kiasi cha rangi ya shina kinachoonekana kuwa chenye kuvutia katika chungu cha kioo na ua hilo litaonwa kuwa la zamani. Kuna sababu mbalimbali kwa ajili ya discoloration shina: - pH ya chini: kiwango cha pH bora ya maji chupa ni kati ya pH 3.5 na 5.5. Ikiwa maji ya maji ni ya kawaida, kiwango cha pH kinapaswa kuwa chini ya 4 wakati wa kutumia chombo cha maji. Kwa shina laini, hilo laweza kusababisha rangi ya shina kubadilika. Aina hii ya mabadiliko ya rangi haina athari kwa maisha ya chupa kwa sababu tishu inabaki intact. - Chlorine shina juu ya Gerbera: klorini ni mara nyingi aliongeza kwa chombo / sufuria maji ya Gerbera. Bidhaa hii ni kali sana kwa tishu za mimea na kwa hiyo lazima iwe na kipimo sahihi sana kama overdosing husababisha shina la kahawia bila marudio. Hii discoloration na uharibifu wa tishu shina kutokana na klorini haina athari hasi juu ya maisha ya chupa. - Surfactant: surfactants ni mara nyingi kutumika kuongeza maji ya kunyonya. Bidhaa hizi huondoa tabaka la nta kwenye shina, kwa mfano kwenye Dianthus. Licha ya discoloration shina hii haina kuathiri uimara wao na maisha ya chungu. - Microorganisms: mlipuko wa microorganisms, kama vile katika vyombo na vases kuweka mengi ya maua kukata au hasa na maua kuharibiwa, matawi na bouquets mchanganyiko, kusababisha discoloration ya shina laini na athari mbaya kwa maisha ya vase. Unaweza kufanya nini? - Futa na kuosha vyombo na vyombo kabla na baada ya matumizi - Kuzuia ukuaji wa viumbe vidogo na utaratibu bora wa usafi - Kata 5-10 cm kutoka shina