|
in
| Title : |
Enhancing the productivity of soybean through the breeding improvement in upland rainfed ecosystem |
| Material Type: |
printed text |
| Authors: |
Rajendra Darai ; Surendra Yadav ; Gun Bahadur Gurung ; Rewati Raman Chaudhary ; Santosh Raj Tripathi, Author ; Tara bahadur Ghimire, Author |
| Pagination: |
43-57 p. |
| Languages : |
English (eng) |
| Keywords: |
soybean ; genotypes conventional breeding high yielding wider adaptation |
| Abstract: |
Considering the importance of soybean crops, genotypes collected from ITT A, Nigeria,
A VRDC Taiwan and local landraces were evaluated in observation screening nursery,
coordina~ed varietal trial and participatory trial to compare the yield potential and insectdisease
reaction under conventional breeding improvement works at NGLRP, Rampur and
NORP, Nawalpur over the two years 2010 to 2011 with the aim to identify and recommend
the high yielding, disease tolerant, early maturing bold seeded of soybean varieties suited for
existing cropping system. Multi-location trial was carried out in RCB design with four
replications and OBN in rod row while in pre-release varietal trial (PRVT) in none design.
Mean yield performances of soybean cultivars over the years in Initial Evaluation Trial (Table
7) indicated that soybean cultivars AGS 87-4(1543 kg!ha), TGxl903-IF (1284 kg!ha),
TGXJ740-2F (1174 kg/ha), GC8234GC-13(1173 kg/ha) and TGX1805-31F (1007 kg/ha)
were the best yielder than the check Seti(284 kg!ha) and will be promoted in multi-location
trials. Combined analysis of soybean cultivars over the years(20 I 0-20 II) and across the three
location(Rampur, Surkhet and Nawalpur) in CVT determined that highly significant
differences were observed in Genotype, Location, Year, Genotype X location but nonsignificant
differences were in Genotype x Year. Overall performances of Soybean cultivars
IangBeakong (2457 kg/ha), AGS 376(2401 kg!ha) and F-778817(2332 kg/ha)) were the
highest mean yielder than the check Puja(2283 kg/ha). These lines has been promoted in
participatory trial and also kept under the seed increase program both at the station and onfarm
. Under pre-release varietal trial, the mean yield performances indicated that the cultivars
TG X-311-23D (1149 kg/ha), PK 7394(1145 kg/ha) and Kavre(J005 kglha) were the best
mean yield performer than the check Puja(732 kg/ha) across the location (Rampur and
Surkhet) and over the years (20 I 0-20 II). These lines will be further verified and validated in
the farmer's field condition and will be increased the seed on farm level to make a seed
sufficiency and take up faster dissemination. At station, nucleus and breeder seed production
is underway to maintain the purity and good quality seed for future use. |
| Link for e-copy: |
http://elibrary.narc.gov.np/?r=859 |
in
Enhancing the productivity of soybean through the breeding improvement in upland rainfed ecosystem [printed text] / Rajendra Darai ; Surendra Yadav ; Gun Bahadur Gurung ; Rewati Raman Chaudhary ; Santosh Raj Tripathi, Author ; Tara bahadur Ghimire, Author . - [s.d.] . - 43-57 p. Languages : English ( eng) | Keywords: |
soybean ; genotypes conventional breeding high yielding wider adaptation |
| Abstract: |
Considering the importance of soybean crops, genotypes collected from ITT A, Nigeria,
A VRDC Taiwan and local landraces were evaluated in observation screening nursery,
coordina~ed varietal trial and participatory trial to compare the yield potential and insectdisease
reaction under conventional breeding improvement works at NGLRP, Rampur and
NORP, Nawalpur over the two years 2010 to 2011 with the aim to identify and recommend
the high yielding, disease tolerant, early maturing bold seeded of soybean varieties suited for
existing cropping system. Multi-location trial was carried out in RCB design with four
replications and OBN in rod row while in pre-release varietal trial (PRVT) in none design.
Mean yield performances of soybean cultivars over the years in Initial Evaluation Trial (Table
7) indicated that soybean cultivars AGS 87-4(1543 kg!ha), TGxl903-IF (1284 kg!ha),
TGXJ740-2F (1174 kg/ha), GC8234GC-13(1173 kg/ha) and TGX1805-31F (1007 kg/ha)
were the best yielder than the check Seti(284 kg!ha) and will be promoted in multi-location
trials. Combined analysis of soybean cultivars over the years(20 I 0-20 II) and across the three
location(Rampur, Surkhet and Nawalpur) in CVT determined that highly significant
differences were observed in Genotype, Location, Year, Genotype X location but nonsignificant
differences were in Genotype x Year. Overall performances of Soybean cultivars
IangBeakong (2457 kg/ha), AGS 376(2401 kg!ha) and F-778817(2332 kg/ha)) were the
highest mean yielder than the check Puja(2283 kg/ha). These lines has been promoted in
participatory trial and also kept under the seed increase program both at the station and onfarm
. Under pre-release varietal trial, the mean yield performances indicated that the cultivars
TG X-311-23D (1149 kg/ha), PK 7394(1145 kg/ha) and Kavre(J005 kglha) were the best
mean yield performer than the check Puja(732 kg/ha) across the location (Rampur and
Surkhet) and over the years (20 I 0-20 II). These lines will be further verified and validated in
the farmer's field condition and will be increased the seed on farm level to make a seed
sufficiency and take up faster dissemination. At station, nucleus and breeder seed production
is underway to maintain the purity and good quality seed for future use. |
| Link for e-copy: |
http://elibrary.narc.gov.np/?r=859 |
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