Nguygn Tu Huy vd Dtg Tap chi KHOA HOC & CONG NGH$ 177(01): 49-54
ANH HirCfNG CUA M O T SO C H A T DIEU H 6 A SINH T R U d N G DEN KHA NANG SINH TRU'dNG, PHAT TRIEN
CilA GIONG HOA LILY ROBINA TAI HA GIANG
Nguyen Tij Huy , Dio Thanh Van' , Dio Thi Thanh Huyen Trudng Dai IIQC Ndng Ldm — DH Thai Nguyen. Dai hpc Kyusuu — Nhdt Bdn TOM TAT
Chit dieu hda sinh trudng Kich phat td hoa yai Thign NSng c6 anh hudng tit din cac chi tigu sinh trudng, phat triln va higu qua san xuit gidng hoa lily Robina tgi Ha Giang. Khi sii dyng Kfch phat td hoa trai Thign Nong cho dudng kinh gdc cay Idn, dgt 0,72 cm, cho so nu/cay va so hoa/cay dgt 6,54 nu va 6,15 hoa, ty Ig canh hoa logi 1 dgt 37,8%, canh hoa loai 2 dat 52,7%, chi co 9,5% so canh hoa loai 3, mang lai hieu qua kinh tl cao, dat 3,520,651.500 ddng/ha. Trong san xuat hoa lily Robina tgi Ha Giang ngn sii dyng chit dilu hoa sinh trudng Kich phat tl hoa yai Thien Ndng.
Tir khda: Robina; GAi; Aionik: Kich phdt t&hoa trai Thlin Nong; Lily DAT VAN DE
Cac chat dieu hda sinh trudng thyc vgt cd vai trd quan trpng trong qua trinh dieu tiet sinh trudng doi vdi co thg ciia cay trdng: Re, than, canh, la, hoa, qua va hgt. Mdi chit dieu hda sinh trudng chiing deu cd kha n3ng kich thich hay li'c che mdt bp phan hoac nhieu bd phan khac tren cay. (Dgng Van Dong va cs, 2010 [5]). Nghien ciiu ve mpt so giai phap ky thuat:
Sii dyng chat kich thich sinh trudng, bdn phan qua la, che bdng cho hoa lily thuc hign d Lang Son, Thai Nguyen, Bac Kan... da xac djnh dugc mdt so chat kich thfch sinh trydng:
GA3, Atonik cd tac dung tdt din sinh trudng va lam tang chat lugng hoa va higu qua san xuit (D6 Tuin Khiem, 2007 [6]), (Pham Mai Chinh, 2009 [1]),
Lily la loai hoa dep, cd nguon goc dn ddi hien nay duac trong quanh nam d cac vung mii cao: Da Lgt (Lam Ddng), Sa Pa, (Lao Cai), Mgc Chau (Son La)... Ha Giang la tinh mien mil, cd dilu kign ty nhien ve dat dai va khi hgu cd the trdng va phat trien nhieu loai hoa, trong do c6 gidng hoa lily Robina da dugc tr6ng khao nghigm, dugc thj trudng ua chugng va cho hieu qua kinh tl cao, Be nang cao nang suit, chit lugng hoa lily Robina tgi Ha Giang viec ling dung mgt so chat kich thfch sinh truang cho giong hoa nay la can thiet.
' Tel 0912 039940. Email: vannga01@gmail com
NOI DUNG VA PHLTONG PHAP NGHIEN ClTU Doi tupng, v^t lieu va pham vi nghien cihi Giong hoa lily Robina dugc nhgp ndi tii Ha Lan cd chu vi cii: 18/20 cm. Thi nghigm dugc bd tri tgi thanh pho Ha Giang (TP, Ha Giang).
Trong ngay 25/10/2016.
Phuong phdp nghien cuu Bo tri thf nghiem
- Thi nghigm dupc b6 tri theo kilu khdi ngau nhien hoan chinh (RCBD) vdi 4 cdng thiic, 3 lan nhac lai: CTI: phun nude la (doi chiing):
CT2: phun Gibberellic acid - 3 (GA3); CT3:
phun Atonik; CT4: phun Kfch phat t6 hoa trai Thien N6ng (Thign N6ng). S6 lugng cho m6i cong thii'c la 50 cu, dign tfch m6i 6 thf nghigm la 2 m^ (25 cu/m^), tong dign tfch thf nghigm la 24 m^
- each phun va so lan phun dugc tign hanh theo khuyen cao, hudng dan cua nha san xuat tiiy tirng logi chit dieu hda sinh trudng. Cac chat dugc hda vdi nude theo ty le: Atonik 10 ml/binh 16 lit, tuang duo^g 0,8 lft nude thuoc phun cho mpt 6 thi nghiem 2 m^; GAj va Thien N6ng 5 gam/binh 16 lft, tuong duong 1 lit nude thuoc phun cho mot 6 thi nghigm 2m^. Thdi gian phun lan dau sau trong 30 ngay den khi cay xuat hien ny cuoi cung, 10 ngay phun mpt lin, phun udt deu tan cay.
Cdc chi tieu theo doi
Chieu cao cay (cm), sd la/cay (la), dudng kfnh goc (cm), tinh hinh benh hai (%). Cac
Nguygn Tii Huy vd Dtg Tgp chi KHOA HQC & CONG NGHE 177(01): 49-54 thdi ky phat triln: ra ny, hoa nd, sd nu/cay
(nu), s6 hoa/cay (hoa), dudng kfnh nu, chieu dai nu (cm), dp ben ciia hoa (ngay), ly Ig cay nd hoa hiJU higu (%), chat lupng hoa (%) canh logi 1, logi 2 va loai 3 va higu qua kinh tg.
Xu ly so llfu
SIX dung phan mem IRRISTAT 4.0 ciia Phgm Tien Dung (2003) [3].
KET QUA NGHIEN CUU VA THAO LUAN Kit qua bang 1 cho thay: Khi phun cac chit dilu hda sinh trudng khac nhau cd anh hudng din dpng thai tang trudng chieu cao cay khac nhau chic chin d dp tin cay 95%. Phun GA3 cho chieu cao cay cao nhat dat 120,30 cm va cao han khi phun nude la (ddi chiing) 15,63 cm chic chin d dp tin cgy 95%. Kit qua nay cung tuang ty nhu kit qua cua tac gia Dang Van D6ng (2000) [4] cho ring, GA3 cd tac dung rd ret den sy sinh trudng ciia cay trdng trong dd, GA3 tac dgng manh d giai dogn sinh trudng dinh duong lam tang chieu cao cay.
Ddng thai tang trudng dudng kinh gdc khdng chju anh hudng bdi khi phun cac chit dilu hda sinh trudng GA3 va Atonik (CT2 va CT3) diu dat 0,68 cm, CT4 phun chat dieu hda sinh trudng Thien Ndng cd sy tang trudng manh nhit, Idn han 0,06 cm so vdi cdng thiic I (d/c) va 0,04 cm so vdi khi phun GA3 va Atonik chic chin d dp tin cay 95%.
86 la tren cay nhieu hay it, thua hay mdng chiing cd ty lg thuan vdi sd vay ciia cu, sd vay cang nhieu thi so la va so hoa cang nhilu, so la cd thi da dugc quyet djnh tii khi hinh thanh than vay, Tuy nhien, yeu td mdi trudng, dieu kign ngoai canh, chat dilu hda sinh trudng ...
ciing lam cho so la tren cay bj thay ddi (Dao Thanh Vin va cs, 2007 [7]). Kit qua nghien Cliu cung cho thay, dpng thai ra la giira cac cong thuc da chju anh hudng bdi cac chat dilu hda sinh trudng khac nhau. Dgt so la cao nhil la cdng thiic 2 phun GA3 (66,65 la/cay) cao hon cac c6ng thiic cdn Igi va cdng thiic I (doi chiing) d miic tin cgy 95%, Bang 1. Anh huang ciia cdc ehdt diiu hoa sinh truang din mot so chi tiiu sinh tru&ng
a giong hoa lily Robina Cong thuc C h i l u cao cay
(cm)
Dirdng kfnh g i c (cm)
S i la/cSy (la) phun nude 13 (d/c)
GA3 Atonik Thign Nong
104,37 120,30 107,46 106,67
0,66 0,68 0,68 0,72
59,69 66,65 64,03 63,69 Per
CV(%) LSD„,
<0.05 2.1
<0.05 1.2 0,16
<O.0S 2.4 3.09 Lily la cay trong rat man cain vai mot so loai b$nh h^i dac bi?t la b?nh chay la sinh ly. Ngoai ra, vai dieu ki?n thtri tiet khi hau giam sSu, kem theo suang muoi hoac trai Em u, thieu anh sang benh sinh ly teo, rung nu cung dien ra lam giam nang suat, chat luang cua mdi canh hoa khi thu hoach san pham.
Ket qua bang 2 cho thay, chung deu bj benh chay la sinh ly va benh teo, rung nu. D6i vdi benh chay la sinh ly bi nhiem 6 cSp 5 trong do, co ty le nhilm bfnh cao nhat 7,56% khi phun GAj. Day CO the thai gian trong thang 10 tai thanh pho Ha Giang nhiet do ban ngay van cao, cuang do anh sang manh anh huong den qua trinh hap thu canxi tir dSt din den benh chay la sinh ly xuat hien nhieu. Khi cay lily hinh thanh nu giai doan sau trong tu 2 - 2,5 thdng luc nay chinh thiic buoc vao miia Dong nhiet dp ngoai trai xuong thap (thang 12, thang 1), cuang dp anh sang yeu, trcri am u benh teo, ryng nu xuat hifn chu yeu 6 cap benh 3, ngoai tru phun nuac la (d6i chilrng) bi nhifm bfnh a cdp 5. Kft qua nay ciing dupc Richard (2006) [8] nghifn ctiu va cho ring, nhift df thap tir 12 - 15 "C cay sinh trucmg ch^m, duai 12 "C cay sinh trudng kem, nu dl bi teo va rung, hoa df bi mu.
50
Nguyen TU Huy vd Dtg Bang 2. Anh hu&ng cua ci
Cong thixc Phun nu6c a (d/c) GAi Atonik Thien Nfng
Tap chi KHOA HOC & CONG NGHE ic ehdt ^leu hoa sinh tru&ng Hen ttnh hlnh berth hai gidng
c a c loai Bfnh chdy ii Ty If (%)
6,87 7,56 6,12 5,91
CSp benh 5 5 5 5
bfnh hai Benh teo T y l f ( % )
8,17 3,8 2,48 1,29
177(01): 4 9 - 5 4 hoa lily Robina
. rung nu C^p bfnh
5 3 3 3 - Cap 3: I — 5% dien tich la, so nu - Cdp 7: 25 — 50% dien lich la, so nu - Cdp 0: khong bj binh;
- Cdp 5- > 5- 25% diin tich Id, s6nv - Cdp 9: > 50% di4n tich Id. s6 nu
Bang 3, Anh huang cua cdc ehdt dieu hoa sinh tru&ng din ih&i gian ra nu vd n& hoa cua giong hoa lily Robina
C6ng thu«
Phun nuoc 13 (d/c) GA, Atonik Thien Nfng
10%
22 21 21 20
Thfrl gian t(r trong den Ra nti
5 0 % 80% 10%
26 33 80 26 34 84 25 33 83 24 30 76 .. ngav
N d h o a 5 0 %
85 89 88 82
80%
92 93 91 86 So sanh thdi gian ra ny va nd hoa khi phun
cac chit dieu hda sinh trudng d bang 3 cho thay: Cac cdng thiic tham gia thi nghigm giai doan tii trong den 10% khi cSy xuit hien ny mit 20 - 22 ngay va 30 - 34 ngiy khi cay cd 80% ny hoa xuit hien. Trong do, cong thiic 4 (phun Thien N6ng) cd thdi gian ra nu sdm nhit vdi 20 ngay (10%) va 30 ngay (80%), sdm hon cdng thiic I doi chiing va c6ng thiic 2 (phun GA3) tu 1 - 4 ngay. Tac gia Phan Thi Dung (2009) [2] cQng da nghien ciiu cac chit dilu hda sinh trudng doi vdi giong Sorbonne cho ring, phun GAj va Thign Nong lai keo dai thdi gian ra ny hon (34 - 35 ngay) khi phun Atonik I - 2 ngay (33 ngay). Day cd the do cac giong khac nhau se chju anh hudng bdi cic chit dilu hda sinh trudng kh^c nhau d6i vdi tirng giai dogn phat triln ciia cay.
v l thdi gian nd hoa, cung tuong ty nhu thdi gian ra ny cong thdc 4 (phun Thien Nong) cd thdi gian nd hoa 10% la sdm nhat 76 ngay va 80% khi cay dupc 86 ngay sau trdng, thdi gian nd hoa tii 10 - 80% mupn nhat la cdng thiic 2 (phun GA3) (84 - 93 ngay sau trong).
Hinh I cho thiy: S6 ny/cay giai doan nay c6 ty I? thuan vdi nang suit dgt dugc cua tung c6ng thiic thi nghigm. Cac cdng thiic cd so nu
trgn cay dao ddng 5,06 - 6,54 ny. Trong do, cdng thiic 4 (phun Thign Ndng) cd s6 ny cao nhat 6,54 nu/cay va cao hem cac c6ng thiic khi phun GA3, Atonik va nude la tu 0,87- 1,48 nu chae chan d miic tin cgy 95%. Ket qua nay cung phii hgp vdi ket qua ciia tac gia Pham Mai Chinh (2007) [1] khi nghien ciiu chit dieu hda sinh trudng Thien Ndng va GA3 doi vdi giong lily Tiber tgi Lang Son cho s6 ny/cay cao nhat (6,00 nu).
Dudng kinh nu cua gi6ng lily Robina khi trdng tai thanh pho Ha Giang deu khdng hi anh hudng khi thay ddi chat dieu hda sinh trudng. Dudng kinh nu d cac cdng thiic giao ddng tii 5,87 - 6,34 cm.
Chieu dai nu cd quan he chat che vai dudng ki'nh ciia hoa, ny dai thi boa se to, pham cap cua hoa se dupc nang len. Gidng hoa lily Robina cd chieu dai nu tu 12,76 cm — 14,76 cm. Chieu dai nu dai nhat khi dugc phun chat dilu hda sinh trudng Thien Ndng va ngan nhat la cdng thuc I (doi chung) dgt 12,76 cm, su sai khac nay chae chan d dp tin cay 95%.
So hoa tren cay cd lien quan mat thiet tdi so nu tren cay, tuy timg cdng thiic su dung chit dilu hda sinh trudng cay c6 sd hoa bien dgng tir 4,13 ~ 6,15 hoa/cay. S6 hoa dat cao nhit 51
Nguyen Tii Huy vd Dig Tap chl KHOA HQC & CONG NGHE 177(01): 49-34 khi phun chat dieu hda sinh trudng Thien
Ndng cao ban khi phun nude la (2,02 hoa) chae chan d dp tin cay 95%.
Dp bin hoa cit va dd ben hoa ty nhien d cac cong thuc dugc phun cac chat dieu hda sinh trudng cd dp bin tuong duong nhau tir 11 - 12 ngay hoa cit va 15 ngay hoa ty nhidn.
Rigng cdng thiic I phun nude IS (ddi chiing) cho dp bin hoa ty nhien lau han 17 ngay.
Hieu qua kinh tl phy thupc rit nhilu vao ty lg nd hoa hiiu higu, ty le nd hoa huu higu cang cao thi hipu qua kinh tl cAng Idn. Cdng thiic 4 khi phun chit dieu hda sinh trudng Thien Ndng cho ty le hoa nd hiiu hieu dgt cao nhat 98,71%, cdng thuc 1 phun nude la (doi chiing) cho ty Ig nd hoa hiiu hieu dgt thip nhat 91,83%.
Kit qua nghien ciiu chat lugng canh hoa d bang 5 cho thiy: Cic cdng thiic khi phun chat
hoa logi 1, 2, 3 khde nhau. Canh loai 2 cd ty le chiim cao nhat tren 50%, chi cd cdng thiic 1 (doi chiing) cd ty Ig cinh loai 2 dudi 50%
(44,9%). Cdng thiic 4 (phun Thien Nong) cd ty Ip canh logi 1 cao nhat (37,8%), tiip den li cdng thiic 2 (phun GA3) (30,6%), cho canh logi 1 thip nhit la cdng thiic 1 (ddi chiing) (20,3%). Cdn lai la canh logi 3 vdi ty lg dao dong tir 9,5% - 34,8%. Kit qua nay so vdi kit qua nghien ciiu ciia Pham Mai Chinh (2007) [I] va Phan Thi Dung (2009) [2] doi vdi gi6ng Tiber va Sorbonne thi ty le canh logi I khi su dung chat dilu hda sinh trudng Thien Ndng cd thip hon, ngugc lgi cac chit dieu hda sinh trudng GA3 va Atonik lgi cho canh loai I cao han. Day cd the do su dung chat dieu hda sinh trudng Thien Ndng phu hpp hon doi vai gi6ng hoa lily Robina dupc trong tai thanh pho Ha Giang.
dieu hoa sinh trudng khac nhau cho ty le canh
Bang 4. Anh hudng cua cdc chat diiu hoa sinh truang din so hoa, dg bin hoa cua giong hoa lily Robina
atylina hoa
C6ng thdc Phun nude la (d/c) GA3 Atonik Thign Ndng PcT CV(%) LSDo 05
Bang 5. Anh hu&ng <
Cdng thii'c
s i hoa/cay 4,13 5,31 5,01 6,15
<0,05 2,5 0,25
DO bin hoa Dp ben hoa t u c i t ( n g i y ) nhign (ngay)
7ua cdc chat diiu hoa sinh c a n h loai
12 17 11 15 12 15 II 15
T J Ie cSy nd hoa hQ'u higu (%)
91,83 96,20 97,52 98,71
tru&ng din ehdt lugng cdnh hoa lily Robina (Dan vj tinh: %) c a n h loai 2 c a n h loai 3 Phun nude 13 (d/c)
GA3 Atonik _Thien Ndng
Ghi chii:
20,3 30,6 23,3 37,8
44,9 51,4 56,2 52,7
20,5 9,5 Cdnh logi I: co lit 6 hoa/cdnh; gid bdn 45.000 d/cdnh;
- Cdnh logi 2: c6lif4- 5 hoa/cdnh, gid bdn 35.000 d/cdnh);
- Cdnh logi 3 colic I -4 hoa/cdnh; gid bdn 25.000 d/cdnh;
De so sanh dugc higu qua kinh tl khi nghien ciiu anh hudng ciia cac chit dilu hda sinh trudng ciia gidng hoa lily Robina cac dieu kipn ve dat dai, giong, co sd vat chit, cong ky thuat... deu dugc diu tu nhu nhau. Trir chit dilu hda sinh trudng cd miic dau tu kinh phi la khac nhau dao dpng tii 0 dong den 120.000 d6ng/6 m^ (tuang duang 20,000 d6ng/l m^),
Ket qua bang 6 cho thay, so vdi cdng thiic 1 (doi chiing) phun nude la, cac cdng thiic dupc phun chat dieu hda sinh trudng cho hipu qua kinh tl cao han, Vdi miic gia ban cua timg logi canh thi c6ngthiic4 khi phun Kich phat to hoa trai Thign N6ng cho lai thuin cao nhit 2.112.391 d6ng/24 52
Nguyen Tu Huy vd Dtg Tap chi KHOA HQC & CONG NGHE 177(01): 4 9 - 5 4 m^ (tuong duong 3 520,651.500 d6ng cho I ha). T i i p den la c6ng thuc 2 (phun GA3) va dat higu qua kinh te t h i p nhat la cdng thiic 1 doi chung, khi khdng sii dyng c h i t d i l u hda sinh trudng.
Bang 6. Anh hu&ng cita cdc chdl diiu hoa sinh tru&ng din hiiu qud kinh ti trong sdn xudt hoa lily Robina tai Hd Giang
(Dan vj linh: dong) Thign Nong So cu tr6ng/24 m^ (1 diem)
Chi phi gifing X 17.000 d/cu Nhan cfing: 7.500.000 d Nhi lu6i (3.500.000 d) Thuoc bao vf thuc vat Phan bfin cac loai Chat difiu hfia sinh truong Tong chi phi (24 m^) Tong thu: (24 m^) Lai thuSn (24 m') L2i thuan qui 1 ha
150 2.550.000
937.000 437.000 8.700 43.400 3.976.100 4.630.000 653.900 1.089.833.330
150 2.550.000
937.000 437.000 8.700 43.400 100 3.487.589 5.220.000 1.732.411 2.887.351.500
150 2.550.000
937.000 437.000 8.700 43.400 100 3.487.589 5.150.000 1.662.411 2.770.684.830
150 2 550.000
937 000 437 000 8 700 43.400 120 3.487.609 5.600.000 2.112.391 3.520.651.500 Ghi chii: - Cdnh loai 1: 45.000 d/cdnh
-Cdnh logi 2: 35.000 d/cdnh -Cdnh logi 3: 25.000 d/cdnh KET LUAN
C h i t dieu hda sinh trudng Kich phat td hoa trai Thign N d n g cd anh hudng tot den cac chi tigu sinh trudng, phat trign va higu qua san xuat giong hoa lily Robina tai Ha Giang. Khi sii dyng Kich phat td hoa trai Thien N d n g cho dudng kinh g6c cay cao, dgt 0,72 cm, cho so nu/cay va sd hoa/cay dgt 6,54 nu va 6,15 hoa, ty le canh hoa loai I dat 37,8%, canh hoa logi 2 dat 52,7%., chi cd 9 , 5 % so canh hoa Ioai 3 , mang lai hieu qua kinh tg cao, dgt 3.520.651.500 ddng/ha. Trong san x u i t hoa lily Robina tgi Ha Giang nen su dung c h i t d i l u hda sinh trudng Kich phat td hoa trai Thien N d n g .
TAI LIEU T H A M K H A O
!. Phgm Mai Chinh (2009), Nghien cicu sinh tru&ng, phdi triin vd dp dung bien phdp ky thugt ndng cao ndng sudt, chdl luang hoa Lily tgi Lgng San, Lu^n van thac sT nong nghigp, Trudng Dgi hpc Ndng Lam, Dal hpc Thai Nguygn, 2, Phan Thj Dung (2009), Nghiin cuu mgt so biin phdp kp thugl ndng cao ndng sudl, ehdt luang hoa
lily tgi Bo Be - Bdc Kgn, LuSn van thac sT ndng nghigp, Tnrdng Dai hpc Ndng Lam, Dai hpc Thdi Nguygn.
3. Phgm Tiln DQng (2003), Xu ly kit qud thi nghiim trin mdy vi tinh bdng Irristal 4 0 trong Windows, Nxb Nfing nghigp. Ha Npi, 4. Dang van Dong (2000), Dieu tra thuc trang sdn xudt hoa Cue & Hd Noi vd nghien cihi mgt so bien phdp kp thudt nhdm tang nang sudt, chdl lugng hoa cue. LuSn van thac sT Khoa hpc nong nghigp Ha Npi, (Thdng tin kinh te rau - qua. Vien Nghign cthi Rau, Qua).
5. Dang van Dong, Nguyin Thi Thanh Tuyin, Trjnh Khic Quang, Le Thu Huomg (2010), ifng dftng cong nghi sinh hgc trong chon tgo vd nhdn gidng hoa lily, hoa loa ken, Nxb Ha Nfii.
6. Do Tuan Khiem (2007), Bdo cdo long kit di ldi Nghien cdu khd ndng thich dng vd xdy dung mo hinh sdn xudt mot sd loai hoa gid trj cao tgi Bac Kgn, Sd Cdng nghigp - Khoa hpc va Cfing nghg, e i c Kgn, y, 4 - 45.
7. Dao Thanh VSn, Dflng Thj To Nga (2007), Gido trinh Cdy hoa, Nxb Ndng Nghiep, Ha Npi, 8. Richard J, (2006), Easter Lily schedule, University of Connecticut.
Nguyin Ta Huy vd Dtg Tap chi KHOA HQC & CONG NGHE 1 / /^u i;: 4y - D4
SUMMARY
E F F E C T S O F P L A N T G R O W T H R E G U L A T O R O F R O B I N A L I L Y C U L T I V A R S IN H A G I A N G P R O V I N C E
Nguyen Tu Huy', Dao Thanh V a n ' ' , Dao Thi Thanh Huyen^
'TNU - University of Agriculture and Forestry ' Kyusuu University - Japan Thien Nong plant growth regulator, promoting flowering in plants, has effective effects on growth, development and productivity of Robina lily cultivars in Ha Giang province. This plant growth regulators gave bigger stem diameter of the rootstocks (0.72 cm), 6.54 flower buds and 6.15 flowers per a plant. The percentage of first class flowers was 37.8% and 52.7% for second class.
Only 9.5% was classified as third class flowers. The obtained yield of this lily cultivar after using Thien Nong plant growth regulator was 3,520,651,500 VND/ha, and this production was also evaluated as a high economic value. Therefore, it is recommended that Thien Nong plant growth regulator should be used for Robina lily cultivar production in Ha Giang province
Key words: Robina; GAj; Atonik; Thien Nong groivlh regulator, Lily.
Ngdy nhgn bdi: 26/10/2017; Ngdypltdn biin: 17/11/2017; Ngdy duyft ddng: 30/01/2018 Tel. 0912 039940; Email- [email protected]
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