Izilawuli zokukhula kwezitshalo zisebenzisa ulethisi

1. Ukuphula i-dormancy yembewu
Izinga lokushisa elilungile lokuhluma kwembewu ye-lettuce ngu-15-29℃. Ngaphezu kuka-25℃, amandla okuhluma ancishiswa kakhulu ngaphansi kwezimo ezingakhanyi. Imbewu ephula i-dormancy ingathuthukisa ikhono layo lokuhluma ngaphansi kwamazinga okushisa aphezulu. Lapho izinga lokushisa lomhlabathi lifinyelela ku-27℃, imbewu ye-lettuce ngokuvamile ingayengelwa ukuba ithule.

Thiourea
Ukwelashwa ngo-0.2% we-Thiourea kubangele izinga lokuhluma lika-75%, kuyilapho ukulawula kube ngu-7% kuphela.

I-Gibberellic Acid GA3
Ukwelashwa nge-Gibberellic Acid GA3 100mg/L kuholele ekuhlumeni okungaba ngu-80%.

I-Kinetin
Ukucwilisa imbewu ngesixazululo se-kinetin esingu-100mg/L imizuzu emi-3 kunganqoba ukulala ngaphansi kwamazinga okushisa aphezulu. Lapho izinga lokushisa lifinyelela ku-35 ℃, umphumela we-kinetin ubaluleke kakhulu.

2: Vimba ukubhowula
I-Daminozide
Uma ulethisi uqala ukukhula, fafaza izitshalo nge-4000-8000mg/L i-Daminozide izikhathi ezingu-2-3, kanye njalo ezinsukwini ezingu-3-5, ezingavimbela ngokuphawulekayo ukubopha, ukwandisa ubukhulu beziqu, futhi uthuthukise inani lezohwebo.

I-Maleic hydrazide
Ngesikhathi sokukhula kwezithombo ze-ulethisi, ukwelashwa nge-Maleic hydrazide 100mg/L isisombululo kungavimbela ukubhowula nokuqhakaza.

3: Thuthukisa ukufaka ibhawudi
I-Gibberellic Acid GA3
Ulethisi ukuphela kweqabunga nemifino yezimpande engakhuthaza ukubopha ngaphansi kwezimo ezifudumele nezinsuku ezinde ngenxa yokungeniswa kwezinga lokushisa okuphezulu kokuhlukaniswa kwezimbali. Ukwelapha imbewu ngezinga lokushisa losuku olude neliphansi kungakhuthaza ukwakheka kwezimbali, kodwa ukugcinwa kwembewu kudinga isimo sezulu esipholile. Isibonelo, ekuhlolweni kwegumbi lesimo sezulu sokwenziwa, phakathi kuka-10-25℃, kokubili osukwini olufushane nosuku olude kungabhoda futhi kuqhakaze; ngaphansi kuka-10-15℃ noma ngaphezulu kuka-25℃, ukuthela izithelo kubi futhi inqolobane yembewu iyancipha; kunalokho, inqolobane yembewu inkulu ku-10-15℃. Kunzima ukugcina imbewu ye-lettuce, futhi ukufafaza i-Gibberellic Acid GA3 kungakhuthaza ukubhowulwa kwe-lettuce futhi kunciphise ukubola.

I-Gibberellic Acid GA3
Uma ulethisi weklabishi unamaqabunga angu-4-10, ukufafaza i-5-10mg/L isisombululo se-Gibberellic Acid GA3 singakhuthaza ukubopha nokuqhakaza kweklabishi ulethisi ngaphambi kweklabishi, futhi imbewu ivuthwa ezinsukwini ezingu-15 ngaphambili, ukwandisa isivuno sembewu.

4 Thuthukisa ukukhula
I-Gibberellic Acid GA3
Izinga lokushisa elilungile lezithombo ze-ulethisi ngu-16-20℃, futhi izinga lokushisa elilungile lokusetha okuqhubekayo ngu-18-22℃. Uma izinga lokushisa lingaphezu kuka-25℃, ulethisi uzokhula kalula ube mude kakhulu. Ukukhanya ezindaweni zokugcina izithombo kanye namashede ebusika nasentwasahlobo kungahlangabezana nokukhula okuvamile kwe-ulethisi. Amanzi kufanele alawulwe ngesikhathi sokusetha okuqhubekayo, futhi amanzi anele kufanele anikezwe ngesikhathi sesihloko. Kulethisi elineziqu ezithambile ezidliwayo, lapho isitshalo sinamaqabunga ayi-10-15, fafaza ngo-10-40mg/L we-gibberellin.

Ngemuva kokwelashwa, ukuhlukaniswa kwamaqabunga enhliziyo kuyashesha, inani lamaqabunga liyakhula, futhi iziqu zethenda ziyasheshiswa ukuze zinwebe. Ingavunwa ezinsukwini eziyi-10 ngaphambili, inyuse isivuno ngo-12% -44.8%. I-lettuce yeqabunga iphathwa nge-10mg/L ye-gibberellin ezinsukwini ezingu-10-15 ngaphambi kokuvuna, futhi isitshalo sikhula ngokushesha, okungase kwandise isivuno ngo-10% -15%. Uma usebenzisa ama-gibberellins ku-ulethisi, kufanele kuqashelwe ekugxiliseni okusetshenziselwa ukugwema ukufafaza ukugxila okuphezulu kakhulu, okuzoholela eziqwini ezincane, ukunciphisa isisindo esisha, i-lignification esigabeni sakamuva, kanye nekhwalithi encishisiwe.

Kuyadingeka futhi ukugwema ukufafaza lapho izithombo zincane kakhulu, ngaphandle kwalokho iziqu zizoba mncane, ukubopha kuzokwenzeka kusenesikhathi, futhi inani lezomnotho lizolahleka.

I-DA-6 (Diethyl aminoethyl hexanoate)
Ukufafaza ulethisi ngesixazululo esingu-10mg/L DA-6 (Diethyl aminoethyl hexanoate) kungenza izithombo zibe nezimpande ezithuthukisiwe kanye neziqu eziwugqinsi, ngokuvamile kwandise ukukhiqizwa ngo-25% -30%.

5. Ukulondolozwa kwamakhemikhali
I-6-Benzylaminopurine (6-BA)
Njengemifino eminingi, i-lettuce senescence iwukubaphuzi kancane kancane kwamaqabunga ngemva kokuvuna, okulandelwa ukuhlakazeka kancane kancane kwezicubu, ukunamathela nokubola. Ukufafaza insimu ngo-5-10mg/L 6-Benzylaminopurine (6-BA) ngaphambi kokuvuna kungandisa isikhathi lapho ulethisi uhlala uluhlaza cwe ngemva kokupakishwa ngezinsuku ezi-3-5. Ukwelashwa nge-6-BA ngemva kokuvuna nakho kungabambezela ukuvuthwa. Ukufafaza ulethisi ngo-2.5-10 mg/L 6-BA usuku olu-1 ngemva kokuvuna kunomphumela omuhle kakhulu. Uma i-lettuce igcinwa kuqala ku-4 ° C izinsuku ezingu-2-8, bese ifafazwa ngo-5 mg/L 6-BA emaqabunga futhi igcinwe ku-21 ° C, ngemva kwezinsuku ezingu-5 zokwelashwa, kuphela i-12.1% yokulawula. ingathengiswa, kuyilapho u-70% wokwelashwa ungamakethwa.

I-Daminozide
Ukucwilisa amaqabunga neziqu zikalethisi ezino-120 mg/L isixazululo se-Daminozide sinomphumela omuhle wokulondoloza futhi sandisa isikhathi sokugcina.

I-Chlormequat Chloride (CCC)
Ukucwilisa amaqabunga kanye neziqu zikalethisi ezino-60 mg/L isixazululo se-Chlormequat Chloride (CCC) sinomphumela omuhle wokulondoloza futhi sandisa isikhathi sokugcina.