Tap chii- -oj no; Co^g ngne \'dng ngniep iiei Nani So '
\ariety with growth duration of 106 days in the Autumn crop season and 117 days in the Spring crop, good resistance to logging and pest, yielding 58.2 quintals/ha in Spring and 54 8 quintals/ha in the Autumn crop season. DT" 12S had growth duration of 113 days in the Autumn crop season and 120 days in the Spring crop, good resistance to logging and pest, the yield reached 57.7 quintals/ha in the Spring crop season and 55.0 quintals/ha in the Autumn crop season. The above varieties are suitable for the production conditions of Yen Duih district and similar areas in Thanh Hoa province.
Keywords: Herbal rice, competitive advantage area, Thanh Hoa province Ngay nhan bii: 19/9/2019
Ngiy phin bien; 1/11/2019
Ngfldi phan bien: TS. Pham Xuan Liem Ngay duyet ding: 10/12/2019
NGHIEN c u t ; TUYEN CHON GIONG NGO CO SINH KHOI CAO, CHAT LUONG TOT cJ VUNG NGOAI THANH HA NOI
Nguyen Quang .Minh', Kieu Quang Luan', Kieu Xuan Dam' TOM TAT
TrongvyXuan2019 tai2huyenDanPhUdngviBa Vi-Ha Ndi da tien hanh danh gia khi nang sinh trUdng, phdt tr]i;^n, nang suat sinh Idioi, chat lUpng cua mpt sd gidng ngd lai. Cac thi nghiem dUpc bo tri theo kieu khdi ngau nhien day dit (RBCD) vdi 4 lan nhic lai. Mdi gidng ngd lai trdng 6 hang Irong mdt 6 dai 5 ni, khoang each gifla hai hing la 70 cm, klioing each gifla hai cay la 20 em. Mflc phan bdn dUpc ap dung chung cho cac thi nghiem la 2,500 kg phan hflu CO khoang + 450 kg dam Ure + 700 kg Lan Super + 200 kg Kalietorua/ha. Kel qui cho thay: Thdi gian thu sinh khoi cua cac giong ngo lai thi nghiem d Ba Vi - Ha N6i bien dong tfl 97 - 100 ngay, d Dan PhUpng - Ha Npi bien dpng tfl 95 - 99 ngay. Cac gidng ngd lai thi nghiem deu thupc nhdm cd thdi gian thu hoach sinh khoi trung ngay, phii hpp vdi dieu ki^n sinh thai va tap quan canh tac ciia ngUdi dan Trong vu Xuan tai 2 huyen nghien cflu, cac gidng CS71;
CNI8-7; VN172; CP511; NK7328 cd nang suat sinh khoi cao, chat lupng thflc an xanh tdt. Day la nhflng giong cd trien vpng sfl dung lam thflc an xanh cho dai gia sue vung ngoai thanh Ha Npi.
Tfl khda: Chat lUpng, gidng ngd lai, nang suat sinh khoi, phat trien, sinh trudng I. DAT VAN DE
Hi?n nay, trdng ngd lay sinh khdi xanh lam thflc an chan nudi gia sue la hfldng di mdi, dip flng d\iac nhu cau ve sinh khdi xanh cung vdi chat Iflpng va ham Iflpng dinh dfldng dam bao nang cao nang suit vi chat Iflpng san pham thit, sfla. De ngUdi chin nudi dai gia sue cd the Ifla chpn nhflng gidng ngd cd ning suat sinh khoi cao, chat lflpng chat xanh tdt thi can phii ed cie nghien cflu chuyen sau nham gidi thieu nhflng sin phi'm chat Iflpng phu hpp vdi chan nudi bd sfla ndi rieng va dai gia sue ndi chung. Khi nghien cflu ngd sinh khdi thi ngoai cac dang hinh nhieu la. gin la mau nau, ngfldi ta cdn quan tam den dang nhieu nhanh hay dang cd cua ngd. Nghien eflu ve nang suat chat xanh, Propheter va cdng tie vien (2010) da ehflng minh ciy ngd eho nang suit chat xanh tdng the (bao gdm tinh bdt va cellulose) cao hdn hau het cic loai cay cd hda thao sfl dyng lam thflc an chan nudi khac, tflPng dupng vdi eay cao lflpng nhflng chat lflpng dinh dfldng cao hdn. 6 An Dd, Barb va cpng tic vi^n (2014) da nghien cflu ra gidng ngd ket hpp ei chiu ndng, chiu nhiet, kha nang
de nhanh cao va cd the eat, tii sinh va thu hoach nhieu lan bang phfldng phap lai ngd thudng vdi bo li ngd dai (Teosinte). Ket qua nghien cflu kha nang cung cap chat xanh cua mdt sd gidng ngd trdng day eho thay d giai doan bap non {giai doan chin sap) sinh khoi chat xanh cay ngd thu dflpc la cao nhat theo Nguyen Quang Tin va cpng tie vien (2014), Nguyen Thi Bien vi cdng tac vien {2015). Ngd Minh Tim va cdng tac vien (2017) trong nghien cflu danh gia kha ning ket hdp ve nang suit chat xanh cua mot sd ddng ngd thuan da chi ra ed 6 to hpp lai cho nang suat chat xanh cao tfl 58,93 - 64,05 tan/ha, cao hdn chac chdn so vdi ddi chflng la LCH9. Trong bii viet nay chung tdi trinh biy nhflng nghien cflu ve tuyen chpn gidng ngd sinh khdi nang suat, chat Iflpng chat xanh cao dap flng dflpc nhu cau lam thflc an xanh ben vflng cho chan nudi dai gia sue cua vimg ngoai thinh Ha Ndi thupc de tai: "Tuyen chpn gidng vi xay dflng quy trinh san xuat, che bien ngd sinh khdi lam thflc an xanh cho dai gia sue vung ngoai thinh Ha Npi".
' Vien Nghien cflu Ngo
II. VATLItL \A PHU)N(. PRAP NGHIEN CLL 2.1. \ a l li?u nghien cflu
Gdm 26 gidng vj td hpp ngd lai mdi do c u ^i^"^
ty tnmi; va ngoii nUdc chpn tao cung 2 gidiic do' chflng NK4300viLCH9.
Bang I. Nguon gdc cac gidng vi to hpp lai tham gia tuyen chon trong vu Thu Done 2018 T T
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Ten THL MK399 HG17.1 DH17-5 CS71
\'S8A VS596A CN18.7 V M 7 2 NX2 NXl TM18-3 TAI 8-2 P,sr747 TMI.s 1
Ngudn goe Vien Nghien ciiu Ngo Vien N f Ngo Vien NC Ngo
\'ien Nc: Ngo Vien NC Ngo Vien N( Ngo
\'ien N( Ngo Vien NC Ngo
\'ien N( Ngo Vien N< Ngo
\'ien Nt: Ngo Vien NC Ngo
\'ien NC Ngo
\ ' i e n N l Ngo
T T 15 16 17 18 19 20 21 22 23 24 25 26 27 28
Ten THL .A\"A3668 NK66 NK430() (d/c)
CPin
\ N 5 S 8 5 LCH9 (d/c) PAC339 LVNK) CP511 nK9955 B265 P4199 P4296 NK7.328
Nguon goc
\'ien Nghien ciiu Ngo C T I N H H Syilgent.i \ N C T T N H H S y n g e n t j \ N C T T N H H C P S e e d \ N Vien Nghien ciiu Ngo Vien Nghien ciiu Ngo C t y T N H H A d v a n U V N Vien Nghien ciiu Ngo C T T N H H CP Seed VN CT T N H H Dekalb VN CT T N H H Bioseed \ ' N CT T N H H P i o n e e r H - B V N CT T N H H P i o n e e r H B V N CT T N H H Syngenta VN
tich gin dflng tai Phdng phan tich thflc an chin nudi - Vicn Chin nudi.
2.2. PhUdng phip nghien cflu 2.2.1. Bo tri thi nghiem
Thi nghiem ducvt bd tri theo khdi ngau nhien --2..^. PhUdng phdp xdly soliiu
Ket qui thi nghiem duoc thu thap va tdng hdp tren hoin toan (RCBD) gdm 28 cdng thflc vdi 4 lan nhic
l^i, bao gdm 2 thi nghiem. Di^n tich 1 d li 21 m' (5 m X 4,2 m). Khoang each gifla cac lan nhic lai li 1 m. Mdi gidng gieo 6 hang/d, hing each hing 70 cm, c.iy each cay 20 cm {mat do 7.14 \An ciy/ha).
gieo 2 hat/hdc va tia de 1 cay/hdc. Mflc phin bon dupc ap dyng chung cho cac thi nghiem li 2.500 kg phin hflu cP khoang + 450 kg dam Ure + 700 kg Lin Super + 200 kg Kaliclorua/ha. Cic chi tieu theo ddi dflpc thflc bi?n d 4 hing gifla cua d. Xung quanh thi nghiem co bing bio ve. chieu rpng bing trdng it nhat 2 hing ngd, khoang cich, mat dd nhfl trong thl nghiem.
2.2.2. Chi tiiu theo ddi
Cae ehi tieu theo ddi tien hanh theo Quy chuan kv thuat Quoc gia ve khao nghiem gii tri eanh tac va sfl dung cua gidng ngd QC\'X 01-56: 2011/
BN'Nl'T N 1 va Tieu chuan cd sd "Ve khio nghiem gia tri canh tac va gia trj .su dyng cua gidng ngd lam thflc an xanh" cfla \"ien Nghien cflu Ngd (2015).
Cic chi tieu thinh phan hda hpc nhfl: vat chat khd, protein thd dflpc phin tich theo phflpng phap phan
phan mem Excel 2010. Cac sd lieu thi nghiem dflpc xfl ly thdng ke theo chUdng trinh IRRISTAT 5.0.
2.3. Thdi gian vi dja diem nghien cflu
Nghien cflu dupe thflc hien trong vu Xuan (tu thang 1 den thing 6 nam 2019) tai xa Thuan My - Ba \ 1 va xa Trung Chau - Dan PhUdng - Hi Npi.
III. KET QUA VA THAO LUAN
3.1. Thdi gian thu hoach sinh khdi eua eac giong ngo Iai vu Xuan 2019 o &
Ke-t qua theo do, thdi gian thu sinh khoi cCia cac giong thi nghiem va giong doi chdng tai 2 diem A hai huyen Ba Vi va Dan Phuong - Ha NAi duoc trinh
bay 6 bang 1. "
Ket qua 6 bing 1 cho thay: Thi,, gia„ ,hu ,i„c khoi cua cac giong thi nghiem vi giong d6i chilne Ba \'i - Ha Npi bie'n dong til 97 - 100 ngay. Trone d "
cac giong CO thdi gian til gieo den thu smh khS T 97 ngay, ngjn hon doi chiing til 1 - 2 ngai la MKIO,!
HGI7-1; VS8A; XX2. TA18-2; PSC-747 '
Tap chi Khoa hoc Co^g -^ghe Ndng nghiep Viet Nam - So W '0y2020 Thdi gian thu sinh khoi eua cic gidng thi nghiem
t9i Dan Phflpng - Hi Ndi bien ddng tfl 95 - 99 ngay.
Trong dd, eie gidng cd thdi gian thu sinh khdi la 95 ngjy, ngin hdn ddi chflng tfl - 2 ngay la MK399;
HG17-1; VS8A; TA18-2; PSC-747. Cac gidng cdn l^i cd thdi gian tfl gieo den chin sinh ly bing hoac Bang 1. Thdi gian tfl gieo den thu sinh khdi (ng:
dai hdn gidng ddi chflng tfl 1 - 3 ngiy. Cac gidng thi nghiem va ddi chflng d hai diem deu thudc nhdm co thdi gian thu sinh khdi trung binh, phu hpp vdi cdng thflc luan canh cua hai huyen Ba \'i va Dan PhUpng - Ha Ndi.
a cic gidng ngd lai tai 2 diem vu Xuan 2019 TT
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Ten THL MK399 HG17-1 DH17-5 CS71 VS8A VS596A CNI 8-7 VNl 72 NX2 NXl TM18-3 TA18-2 PSC747 TM18-1
B a V i 97 97 98 99 97 98 99 99 97 98 98 97 97 99
Dan PhUdng 95 95 97 97 95 96 97 97 98 97 97 95 95 97
TT 15 16 17 18 19 20 21 22 23 24 25 26 27 28
Ten THL AVA3668 NK66 NK4.100 (d/c) C P l l l VN5885 LCH9 (d/c) PAC339 LVNIO CP511 DK9955 B265 P4199 P4296 NK7328
B a V i 98 99 99 98 98 98 97 99 99 99 99 98 99 100
Dan Phuong 96 97 97 96 96 96 95 97 97 97 97 96 98 99 3.2. Nang suat hat cac giong ngo lai thi nghiem vu
Xuan 2019
Ket qua theo doi nang suat hat thUc thu ciia cac
giong thi nghiem va giong doi chiing tai 2 diem 6 hai huyen Ba Vi va Dan Phuong - Ha Noi duoc trinh bay d bang 2
Ten giong MK399 HG17-1 DH17-5 CS71 VS8A
\'S596A CN18-7
\ N 1 7 2 NX2 NXl TM18-3 TA18-2 PSC747 TM18-1 i.sn.
CV(%)
Bang 2. Nang Nang suat BaVi 72,17 59,29 65,16 58,80 65,11 48,53 81,65 62,07 48,80 55,06 60,70 55,41 61,03 77,90
suat hat cua cac | hat(ta/ha)
Dan Phuong 80,56 85.12 69,97 83,95 68,20 74,90 84,06 72,34 77,68 77,49 83,32 78,14 86,43 81,35
giong ngo lai tai 2 dieni i Ten giong
AVA3668 NK66 NK4300 (d/c) C P l l l VN5885 LCH9 (d/c) PAC339 LVNIO CP511 DK9955 B265 P4I99 P4296 NK7328
u .Xuin 2019
Nang suat hat (ta/ha) Ba Vi Dan P h u o 64,96
58,92 62,63 75,20 59,47 73,30 .55,16 40,81 70,23 67,52 56,63 73,24 71,80 84.80 10.10 11.3
82,65 79,27 72.62 7«,72 80,52 76,33 71,48 65,89 75.41 74,91 72,15 92,96 73,53 81,99 10,61 10.4
Tape!'.:.'hoa hoc Cdng ngh^ Ndng--gnKi- , •}t\j
Qua bang 2 cho thJv. nang suit hat thflc thu (Nsr [') cua cac gidng ngd Iai thi nghiem trong vu Xuan 2019 ed sfl bien dpng gifla eac diem. Ket qua theo ddi d Ba \'i cho thay ning suat thflc thu cfla cie gidng thi nghi?m bien ddng tfl 40,81 ta/ha (LNNIO) - 84,80 ta/ha {NK"32,Sj. Nhfl viy cd duy nhat gidng NK7.128 cho N'Sl T cao hdn 2 gidng ddi chflng chic chin d mflc tin cav 95% Ngnai ra, co nam gidng cho NSTT cao hon gidng doi ehflng NK4300 chic chin d mflc tin cay 95S
Ket qua theo ddi d Dan Phupng cho thay ning '-u.it thflc thu eua cac gidng thi nghiem bien dpng tfl 65,89 (LVNIO) - 92.96 ta/ha (P4199). Duy nhat ed gidng P4199 cd NSTT dai cao hdn 2 gidng ddi ehflng chic chin d mflc im cay 95% Gidng ddi ehflng NK4300 d^t 72.62 ta/ha; gidng ddi ehflng LCH9 dat 76,33 ta/ha. Neu so sinh rieng vdi ddi chflng NK4300 thi cd nim gidng cho nang suit vflpt chic chin d mflc tin cay 95%. Dd li cac gidng
CS7I (83,95 ta)/ha): HG17-I (S5.12 t^/ba): t NlS 7 (84,06 ta/ha); TM18-3 (83,32 t^/ha): P ^ "-t"
(S6.43 ta/ha).
3.3. Ning suat sinh khoi, kha nang sfl dyng 1 ^ thflc an xanh cua cac giong
3.3.1. Ndng suat sinh khoi cua cdc giong Nang suit smh khdi la toin bp khdi lUoiij; thin, Ii. khdi lupng bap ca la bi tren 1 ha gieo irons; dflpc thu hoach d giai doan chin sap cua ngd. DJy Ui guii doan ma ngd da tich luy gan nhfl du chat dinh dfldng vao hat vi diy cung la giai doan cd ehit Ifldng lam thflc in xanh tdt nhat (Nguyen Quang Tin \>i ctv, 2014). Giai doan chin sap la d phia dau bip hat ed tinh bdt dang set, hat d phia cudng bip cd tinh bdt bdi cflng, hat d gifla bap cd tinh bdt sanh set quinh nhfl sip (cd the bam mdng tay dflpc). Ket qui theo ddi nang suat sinh khdi dflpc trinh biy d bang 3,
T^n giong
MK399 HG17 1 DH17-5 CS71 VS8A VS596A C N l S - 7 VN172 NX2 NXl l M l S - 3 TA18-2 PSC747 I M l S - l I.SD
cv(%l
Bar N i n g
B o l l 59,64 52,10 53,76 55,20 50,33 51,45 55,77 53,90 54,23 51,70 48,95 50,89 -54,01 57,56 3,96
.5.4
g 3. Nang suit sinh kh sual sinh khoi (tan/ha)
Dan PhUdng 49.96 49.41 52,06 53,20 51,70 51,43 58.84 56,50 54,39 50,51 45.79 55.63 55.49 58.50 7.93 10,8
51 cija cac giong vu
Ten gidng
AVA3668 NK66 NK4300 (d/c) C P l l l VN5SS5 LCH9 (d/c) PAC339 1-VNlO CP511 DK9955 B265 P4199 P4296 NK7328
X u i n 2 0 1 9
N a n g suat sinh khoi (tan/ha) BaVi 52,06 50,27 46,52 52,29 50,35 49,08 50,14 44,38 51,34 50,59 50,33 50,65 52,40 57,51 3,96
5,4
Dan PhUdng 49,05 50,37 48,18 55,95 52,75 49,72 53,80 45,62 52,35 49,51 50.26 56,39 53.10 54,00 793 10 h Ket qua theo doi ti Ba \'i cho thay: Nang suat
sinh khoi ciia cac giong dao dong til 44,38 tan/ha (l.\N10) den 59,64 tan/ha (.MK399) Neu so sanh vui doi chting NK4300 (46.52 tan/ha) thi co 19/26 giong vili?t cao hon d miic tin ciy co y nghia. Dien hinh la cac giong .\IK399 (.59,64 tan/ha); DH17-5 (53,76 tan/ha); CS71 (55,20 tan/ha); CNIS "
(^=,./ tan/ha), VM72 (53,90 , . „ „ „ , , . f , „ , (54,23 tan/ha); PSC-747 (54,01 tan/ha> TMVS , 157.56 tan/ha); NK7328 (57,51 tan/ha) Siasa u VOI doi chiing LCH9 (49,08 tan/ha) thi co 9/26 i - c6 nang suat smh khoi vu^jt cao hon 6 muc tin c""^
Kil qua theo doi ti Dan Phupng cho thav Nin suat smh khoi ciia cac giong dao dong til 45. i ^ ! ; *
Tap chi Khoa hoc Cong igh- :idngnghi$pVielNo- 'OKWi
(I.NNIO) d e n 58,84 tan/ha ( C N 1 8 - 7 ) Neu so s a n h veil doi chiing NK4300 (48,18 t a n / h a ) thi co 4 / 2 6 giong viii?t c a o h o n d miic tin cay c o y n g h i a . D o la cac giong C N 1 8 - 7 (58,84 t a n / h a ) ; V N 1 7 2 (56,50 t a n / h a ) ; T M I 8 - 1 (58,50 t a n / h a ) ; P 4 1 9 9 (56,39 t a n / h a ) . Neu so s a n h vdi d o i c h i i n g L C H 9 (49.72 t a n / h a ) co 2/26 g i o n g c o n a n g suat sinh k h o i vu^ft cao h o n d mile tin cay CO y nghia. D o la cac g i o n g C N 1 8 - 7 (58,84 t a n / h a ) ; T M 1 8 - 1 (58,50 t a n / h a ) . C o 20/26 giong dat n a n g suat viiot h o n 50 t a n / h a . 3.3.2. Khd ndng sii dttng lam thiic dn xanh cua cdc giong
Ket qua t h e o doi cac chi tieu chat x a n h dildc t r i n h bay ti b a n g 4 cho thay: Vat chat k h o ciia cac g i o n g
d a o d o n g til 2 1 , 2 3 % ( N X 2 ) d e n 2 7 , 6 1 % (CS71). Cac g i o n g CO ty- le v i t chat k h o c a o tren 27% l i CS71.
T M 1 8 - 3 ; C a c g i o n g co ty le vat chat k h o cao tren 2 6 % la TA18-2; AVA3668; Cac giong co ty I? vat chat k h o c a o t r e n 2 5 % la M K 3 9 9 ; VS596A, C N 1 8 - 7 ; N.Xl;
T M 1 8 - 1 : C P l l l ; PAC339; C P 5 1 1 ; DK9955 va hai doi chiJng X K 4 3 0 0 v i L C H 9 .
Ve chi tieu p r o t e i n t h o cua cac giong d a o d p n g til 8,11% (MK399) - 10,33% (VN172). Nhflng giong CO p r o t e i n t h o c a o t r e n 9% la CS71 (9,40%); VS8A ( 9,12%); VS596A (9,45%); C N 1 8 - 7 (9,31%); VN172 (10,33%); NX2 (9,24%); TA18-2 (9,57%); AVA3668 (9,17%); C P l l l (9,65%); V N 5 8 8 5 (9,36%); LVNIO (9,22%); C P S n (9,03%); P4199 (9,09%); P4296 (9,43%); N K 7 3 2 8 (9,58%).
Ten giong MK399 HG17-1 DH17-5 CS71 VS8A VS596A CN18-7 VNl 72 NX2 NXl TM18.3 TA18-2 PSC747 TM18-1
Bang 4. Mot so chi tieu chat luong chat xanh ciia cac giong vu Xuan 2019 Vat chat k h o
j % ) l _
25,29 22,68 23,25 27,61 24,02 25,78 25,85 23,81 21.23 25,54 27,56 26,22 23,97 25,93
P r o t e i n t h o
( % ) * ^
8,iJ 8,83
Ten gidng
9,40 9,12 9,45 9,31 10.33 9,24 8,67 8,88 9,57 8,82 8,48
AVA3668 NK66 NK4300 (d/c) C P l l l VN5885 LCH9 (d/c) PAC339 LVNIO CP511 DK9955 B265 P4199 P4296 NK7328
Vat chat k h o
_ ( % r
26,22 24,05 25,65 25,04 24,68 25,85 25,18 23,39 25,09 25,98 23,83 23,44 23,24 24,92
Protein t h o
_ (%)"
9,17 8,29 8,77 9,65 9,36 8,94 8,67 9,22 9,03 8,37 8,82 9,09 9,43 9,58 Ngudn: Ket qua lit Phong phdn lich thdc dn vd sdn phdm chdn nuoi- Vien Chdn nudi (ndm 2019).
Ghi chu: ' TCVN 4326-2001: " TCVN 4328-2007: "'TCVN 4329-2007. Cdc chi tieu (') dUdc VILAS cdng nhdn vdBd Ndng nghiep & PTNT chi dinh.
IV KET LUAN
- Thdi gian t h u sinh khoi c u a cac g i d n g ngo lai thi n g h i e m b vy Xuan 2019 bien d o n g bien d p n g tii 97 - 100 n g i y tai Ba Vi; tif 95 - 99 n g i y tai D a n P h u p n g . Cac g i o n g n g o d e u t h u p c n h o m co thcfi gian til gieo d e n chin sap ( t h u h o a c h s i n h k h d i ) t r u n g b i n h phii h p p c h o san xuat n g o s i n h khdi hien nay.
- N a n g suat hat thiic t h u ciia cac g i o n g tai Ba Vl bien d p n g tfl 40,81 t a / h a (LVNIO) - 84,80 t a / h a ( N K 7 3 2 8 ) . D u y n h a t gidng N K 7 3 2 8 c h o N S T T c a o h o n 2 g i d n g d d i chflng chac c h a n 6 mflc tin cay 9 5 % .
N a n g suat thiic t h u ciia cac gidng tai D a n P h u p n g bien d o n g tfl 65,89 (LVNIO) - 92,96 t a / h a (P4199).
D u y n h a t c o gidng P4199 c h o N S T T dat cao h o n 2 gidng ddi chiing c h i c c h a n ti mflc tin cay 9 5 % .
- Q u a 2 d i e m n g h i e n cflu, co 20/26 g i o n g c o n a n g suat s m h khdi t r e n 50 t i n / h a . T r o n g dd, cac g i d n g tieu bieu cd h a m Iflpng vat chat k h d c a o tren 20%; protein t h o t r e n 9% l i : C S 7 1 ; C N 1 8 - 7 ; V N 1 7 2 ; C P 5 1 1 ; N'K7328. C a c gidng nay cd t h e tuyen c h p n l a m thflc an x a n h c h o dai gia sue.
11
TAI LIEUTHA.M KHM)
Nguyin Thj Bien, Npu>en Viet CUdng, Le Thiet Hai, -Ngu>en Quang Tin, Le Quoc Doanh, NJ;||^ '» ^ '^^' LUu Ngpc Quyen, Nguyen Quang Tin, 2015. Mdt CUdng, Nguyen Thi Bien. 2014. Nijhun ci n»'"J^
so giai phap dat moi w lua nang suit thap canh ^ay thflc an gia .sue tren dat lua mpt vu nanji MI-'I''"T tac nhd nUdc trdi sang trdng cay thUc in gia sue. benh vung mien nui phu Bic. Tap chi .\." ^ ".i;""T Tap chi Son^ nhiip Phdt tnen Sdng thon, sd 3 + vd PTNT. so (6): trang 37-44.
4/2015; trang 59-66. Barh A., Manjeetn Kumar, NK Sing. 2011 Pro!.pecls ot Bp -Ndng nghiep va Phil trien nong thon. 2011 QC\N maize x teosinte hybridization in Itxider improvement 01 ''(v2011/BNNPTNr Quy chuan ky thuat Qudc maize. Abstracts of 12' Asian Maize Conference gia ve khio nghiem gia tri canh tac va sfl dung cfla and Expert Consultation on .\Uii:c Jot I-ood. Feed.
gidng ngd Sutrition and Environmental Security. 30 Ocl-1 N'»^v Ngd Minh Tim, Bui Manh CUdng, Ngu>en Van 2014. Bangkok, Thailand.
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Selection of good quality, high biomass yield maize varieties in Hanoi suburban areas
Ngmcn Quang Minh, Kieu Quang Luan, Kieu Xuan Dam Abstract
i'wenty six hybrid mai/e varieties were evaluated for grovrth. developmenl, grain yield, biomass quality and yield in (he Spring or2019 in Dan Phuong and Ba \'i districts, Hanoi province The experiments were arranged in randomized complete block design (RCBD) with 4 repetitions. Hach variety was grown in a 6 row-plot with the length of 5 m; the distance between iv.o rows was 70 cm and between two plants was 20 cm. The fertilizer applied generally per 1 hectare was 2,500 kg of mineral organic fertilizer + 450 kg of Urea + 700 kg of Super phosphate + 200 kg of Kalichloride. The rcsulls showed that the harvesting biomass lime of hybrid maize varieties ranged from 97 to 100 d.iys in Ba \'i. from 95 to 99 days in Dan Phuong. The hybrid maize varieties belonged to medium time group of biomass harvesting that w.is suitable to ecological condition and cullivalion custom of local farmers. Five varieties including CS71,t"M8-7. \'N172.CP511 and NK712S had high biomass yield, good forage quality in Spring in both studied districts These tn c \ arieties were promising ones for catUe forage feed in Hanoi suburban areas.
Keywords: Biomass yield, development, growth, hybrid maize variety, quality
Ngay nh^n bai: 12/12/2019 NgUdi phan bien: TS. Ngd Thi Minh Tim Ng.iy phan bien: 1^/12/2019 Ngav duyet dang: 13/01/2020
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