{"id":50569,"date":"2026-06-29T13:07:12","date_gmt":"2026-06-29T10:07:12","guid":{"rendered":"https:\/\/sadogorodnik.top\/?p=50569"},"modified":"2026-06-29T13:07:12","modified_gmt":"2026-06-29T10:07:12","slug":"prichiny-otsutstviya-krasnogo-czveta-myakoti-u-arbuza-pri-prezhdevremennom-sbore-urozhaya","status":"publish","type":"post","link":"https:\/\/sadogorodnik.top\/uz\/prichiny-otsutstviya-krasnogo-czveta-myakoti-u-arbuza-pri-prezhdevremennom-sbore-urozhaya\/","title":{"rendered":"Tarvuz go'shti muddatidan oldin yig'ib olinganda qizil rangga ega bo'lmasligining sabablari"},"content":{"rendered":"

Tarvuzlarda tanish qizil rangning yo'qligi bog'bonlar tomonidan noto'g'ri yetishtirish amaliyoti tufayli duch keladigan keng tarqalgan muammodir. Meva muddatidan oldin yig'ib olingani yoki noqulay o'sish sharoitlari tufayli kerakli pigmentlarni to'play olmasa, go'shti oqarib qoladi. Meva rangiga ta'sir qiluvchi omillarni tushunish hosilni kesishda umidsizlikka tushmaslikka yordam beradi. Yuqori sifatli tarvuzlar muvozanatli ovqatlanishni, haroratni to'g'ri nazorat qilishni va pishib yetish vaqtini qat'iy nazorat qilishni talab qiladi.<\/p>\n

\"Nima<\/p>\n

Likopenning rang hosil bo'lishidagi roli<\/h2>\n

Tarvuz go'shtining to'q qizil rangi karotinoidlar guruhiga mansub kuchli tabiiy antioksidant likopen tufayli yuzaga keladi. Bu pigment faqat meva pishishining oxirgi bosqichlarida faol to'plana boshlaydi. Agar bu jarayon to'xtatilsa, likopen darajasi juda past bo'lib qoladi, natijada oq yoki och pushti go'sht hosil bo'ladi.<\/p>\n

Pigment asta-sekin to'planadi, shuning uchun erta yig'ib olish tarvuzni o'ziga xos rangi va shirinligidan mahrum qilishi kafolatlanadi. Yetarli miqdorda likopen sintez qilish uchun o'simlik vegetatsiya davrida barqaror issiqlik va quyosh nuriga kirishni talab qiladi. Quyosh nurining yetarli emasligi karotinoid sintezini sekinlashtiradi, natijada rang notekis bo'ladi.<\/p>\n

Yangi boshlovchilar tomonidan keng tarqalgan xato - bu navning biologik pishish vaqtidan oldin rang paydo bo'lishini kutishdir. Esingizda bo'lsin, qizil pigment meva rivojlanishining oxirgi bosqichi bo'lib, vaqt va shakarning to'g'ri to'planishini talab qiladi.<\/p>\n

O'sish sharoitlarining pulpa sifatiga ta'siri<\/h2>\n

Tarvuzlar tuproq tarkibi va harorati jihatidan talabchan bo'lib, neytral pH qiymati 6,0\u20137,0 bo'lgan yengil, qumloq tuproqlarni afzal ko'radi. Mevalarning faol o'sishi uchun optimal harorat 22\u201328 daraja Selsiy oralig'ida. Harorat 15 darajadan pastga tushganda, mevalardagi metabolik jarayonlar sekinlashadi, bu ko'pincha rangsizlanish va rang o'zgarishiga olib keladi.<\/p>\n

Mo''tadil iqlim sharoitida o'simliklarni maksimal darajada quyosh nuri bilan ta'minlash va sovuq shamollardan himoya qilish muhimdir. Agar yoz salqin bo'lsa, barcha yig'im-terim muddatlariga rioya qilingan taqdirda ham mevalar kerakli pishib yetilmasligi mumkin. Bunday hollarda yuqori sifatli hosil olish uchun plastik qopqoqlar yoki issiqxonalardan foydalanish juda muhimdir.<\/p>\n

Haroratning nomuvofiqligi oqibatlari nafaqat mevaning rangida, balki tuzilishida ham yaqqol ko'rinadi. Stressga uchragan o'simlik resurslarni qayta taqsimlaydi va vegetativ massaning omon qolishi uchun meva sifatini qurbon qiladi.<\/p>\n

Sug'orish va o'g'itlashdagi xatolar<\/h2>\n

Pishib yetilgan davrda ortiqcha sug'orish tarvuz pulpasida oq tolali chiziqlar paydo bo'lishining asosiy sababidir. Haddan tashqari namlik to'qimalarning intensiv o'sishini rag'batlantiradi, bu esa pigmentlarning bir tekis taqsimlanishiga to'sqinlik qiladi. Sug'orish o'rtacha bo'lishi kerak, hosilni yig'ib olishdan ikki hafta oldin intensivlikni majburiy ravishda kamaytirish kerak.<\/p>\n

Haddan tashqari azotli o'g'itlar, ayniqsa yozning ikkinchi yarmida, mevalarning shishishi va ta'mini yo'qotishiga olib keladi. Azot barglarning o'sishini rag'batlantiradi, shakar to'planishini va pulpa rangini inhibe qiladi. Mevalarning normal rivojlanishi uchun hujayra tuzilishini mustahkamlovchi kaliy-fosforli o'g'itlar afzalroqdir.<\/p>\n

Amaliy maslahat: O'g'itni qat'iy jadvalga muvofiq qo'llang, tennis to'pi kattaligidagi kurtaklar paydo bo'lgandan keyin sof azot qo'llashdan saqlaning. Ta'm va rangni yaxshilash uchun kaliy manbai sifatida yog'och kulidan foydalaning.<\/p>\n

Tarvuz pishganligi belgilari<\/h2>\n

Tarvuzning hosilga tayyor yoki yo'qligini aniqlash uchun o'simlikning tashqi xususiyatlarini sinchkovlik bilan tekshirish kerak. Asosiy ko'rsatkich poyaning holatidir: u butunlay quruq va jigarrang bo'lishi kerak. Agar poya suvli va yashil bo'lib qolsa, mevaning ozuqaviy jarayoni hali ham davom etmoqda.<\/p>\n

Tarvuz yerga tegib turgan joyga e'tibor bering: pishgan mevada u to'yingan krem yoki sariq rangga kiradi. Oq dog' tarvuzning pishmaganligining aniq belgisidir. Pishgan mevaning po'stlog'i mat rangga aylanadi, yaltiroq yaltiroqligini yo'qotadi va tirnoq bilan ezib tashlash uchun etarlicha qattiqlashadi.<\/p>\n

\"Agar\"Tarvuz<\/p>\n

Genetik xususiyatlar va nav farqlari<\/h2>\n

Ba'zan oq tanli bo'lish noto'g'ri parvarish tufayli emas, balki tanlangan navning xususiyatlari bilan bog'liq. Tuzlash yoki pishirish uchun mo'ljallangan, tabiiy ravishda qattiq, oq tanli bo'lgan yem-xashak va sanoat navlari mavjud. Ular bog'da qancha vaqt bo'lishidan qat'i nazar, qizil rangga kirmaydi.<\/p>\n

Agar bir xil uchastkada turli xil qovun navlari yetishtirilsa, o'zaro changlanish atipik xususiyatlarga ega mevalarga ham olib kelishi mumkin. Urug'larni sotib olayotganda, o'zaro changlanish ehtimolini oldini olish uchun obro'li ishlab chiqaruvchilarni tanlash muhimdir. Agar meva shirin ta'mga ega bo'lsa-yu, lekin oq bo'lib qolsa, siz aynan shu navni yetishtirgan bo'lishingiz mumkin.<\/p>\n

TSS<\/h2>\n

Tarvuzni urish pishganlikka ta'sir qiladimi?<\/h3>\n

Yo'q, bu usul sub'ektiv va ko'pincha chalg'ituvchi, chunki tovush nafaqat pishganlik darajasiga, balki go'shtning zichligi va po'stlog'ining qalinligiga ham bog'liq. Vizual belgilarga e'tibor qarating: poyaning holati, "tuproqli" dog'ning rangi va terining qattiqligi.<\/p>\n

Terilgan oq tarvuzni pishib yetish mumkinmi?<\/h3>\n

Tarvuzlar, pomidor yoki qovunlardan farqli o'laroq, tokdan ajratilgandan keyin deyarli pishmaydi. Agar siz pishmagan, oq go'shtli mevani tanlasangiz, shakar to'planish jarayoni butunlay to'xtaganligi sababli, saqlash paytida uning qizil rangi yoki shirinligi paydo bo'lmaydi.<\/p>\n

Nima uchun tarvuz ichida oq tomirlar bor?<\/h3>\n

Oq, dag'al tomirlar ko'pincha vegetatsiya davrining ikkinchi yarmida ortiqcha azot borligini ko'rsatadi. O'simlik tez o'sishi uchun "signal" oladi, bu esa meva ichidagi qon tomir to'plamlarining dag'allashishiga va pulpa hosil bo'lishiga dosh berolmasligiga olib keladi.<\/p>","protected":false},"excerpt":{"rendered":"

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