Nghiên cứu chọn tạo giống ngô năng suất cao chống chịu bệnh gỉ sắt (Puccinia sp.) cho vùng Tây Nguyên

THONG
TIN
VE
NHlTNG
KET
LUAN
MOl
CUA
LUAN
AN
TIEN
SI
Ten de tai
luan
an:
"Nghien
cieu
chgn
tao
gidng
ngo
nang
su&t
cao
chong
chiu
benh
gisSt
(Puccinia
sp.) cho
viing

Tay
Nguyen"
Chuyen
nganh:
Di
truy8n va
Chon
giong cay trong Ma so: 62.62.01.11
Ho ten
Nghien
cu-u
sinh:
Tran
Thi
Phuang Hanh
Khoa
dao tao: 2011-2014
Ngu-oi
hu-o-ng
dan
khoa
hoc:
1
.TS.
Biii
Manh
Cuang
2.TS.
TrSn
Quang Tan

Co-
SO'
dao tao:
Vien
Khoa
hoc
Nong
nghiep
Viet
Nam
(VAAS)
Nhfirng
dong
gop moi ciia
luan
an:
1. Tren ca sa tap doan gom 40 dong
ciia
Vien
Nghien
cuu Ngo, da chon loc dugc 28
dong
CO
kha nang chong chju benh gi sat trong do c6 11 dong (G2, G45, G46, G47,
G286,
G1237,
G1238,
B67a,
B67c,
C4N va

ClON)
c6 kha nang chdng
chiu
benh gi sat
tdt
(dilm
1), dat yeu chx vh thai gian sinh truang (110 - 116 ngay a Tay Nguyen, 106 -
112 ngay a phia
BSc),
d6ng diu \h dac
dilm
hinh thai, nang
suat
cao (>30
ta/ha),
c6 sir
da
dang di truyen vai muc khac biet gifta cac cap dong giao dong tir 0,29 -0,91, do thuan
di
truy6n cao
(>80%),
kha nang k^t hgp cao ve nang
suat
dap ung dugc yeu cau trong
chgn
tao giong ngo lai chong
chiu
benh gi sat.
2.
Chgn

tao va
giai
thieu cho san xuat ngo a Tay Nguyen giong ngo lai
VN5885
(ClON
X
C4N)
nang
suat
cao (>90
ta/ha),
c6 kha nang thich
ling
rgng, c6 thai gian sinh
truang trung binh sam, cung cay, c6 kha nang chong
chiu
tot, dac biet la benh gi sat da
dugc Bg
Nong
nghiep va Phat trien nong thon cong nhan san xuat thu nam 2013 (Quyet
dinh
s6
627/QD-TT-CLT
ngay 30/12/2013), Hai t6 hgp lai
triln
vgng
VN665
(G46 x
B67a),
VN667

(G46 x G2) da va dang dugc khao nghiem a Tay Nguyen va cac vung sinh
thai
khac, ket qua buac dau cho thay c6 trien vgng.
3. Ket qua nghien cuu bo sung du
lieu
khoa hoc cho nghien cuu ngo a Tay Nguyen,
la
tai
lieu
tham khao cho cac can bo khoa hoc chuyen nganh va sinh vien cac truang
Nong
nghiep.
CAN
BO Hir6NG DAN
KHOA
HOC
NGHIEN
CUtJ
SINH
TS.
Bui Manh Ctfffng
Tran
Thi
Phu^ong
Hanh
INFORMATION
ABOUT
DOCTORAL
THESIS'S NEW
RESULTS

Thesis's
title:
"Maize
hybrid
breeding
for
high
yield
and
rust
(puccinia
sp.)
tolerance
in the
central
highlands
"
Major Field: Genetic - Plant Breeding; ^
Code:
62.62.01.11;
Postgraduate
student:
Tran Thi Phuong Hanh Training
course:
2011 - 2014
Supervisors:
1. Dr. Bui Manh Cuong
2.
Dr. Tran Quang Tan
Training

organization:
Vietnam Academy of
Agricultural
Sciences
(VAAS)
Some
new
results
of
thesis
1. Selecting successfully 28 inbred lines with tolerant to
rust
(point 1-2) from
40 inbred lines developed by National
Maize
Resarch
Institute
of Vietnam, in which
11 lines namely G2, G45, G46, G47, G286, G1237, G1238, B67a, B67c, C4N and
ClON
express
good tolerance to
rust
(point 1), growth duration (110-116 days in the
Central
Highlands, 106-112 days in Northern Vietnam), uniformity in morphological
traits, high
yield
(over 30 quintals.ha''), genetic diversity with differential level
between line pairs ranged 0.29 to 0.91, high genetic purity (over 80%), high

combining
ability for grain
yield,
meeting the
demands
for high
yield
and
rust
tolerance in maize hybrid breeding.
2.
Developing a hybrid named
VN5885
(ClON
x C4N) with high
yield
(over
90 quintals.ha''), wide adaptability, early medium maturity (94 - 118 days), sturdy
plants, good
resistance
especially to
rust
(point 1), recognized as
Trial
production Crop
Variety
by the
Ministry
of
Agriculture

and Rural Development in 2013 (Decision No.
627/QD-TT-CLT
dated
12.30.2013). Two
crosses
VN665
(G46 x B67a) and
VN667
(G46
X G2)
have
been
tested
in the Central Highlands and the different ecological
zones,
initially
showing the promising results.
3.
Thesis's results have contributed the valuable and scientific information
for
maize research in Southern provinces, also be references for specialized
researchers
and
students
in the
Agricultural
universities.
SUPERVISOR
*
POSTGRADUATED

STUDENT
Dr.
Bui Manh Cuong
Tran
Thi
Phuong
Hanh