Management of rice production systems to increase productivity
Management of rice production systems to increase productivity
Management of rice production systems to increase productivity
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Seedling<br />
Age<br />
5‐Days<br />
5‐Days<br />
10‐Days<br />
10‐Days<br />
35‐Days<br />
35‐Days<br />
LSD.05<br />
CV(%)<br />
PAge<br />
PVar<br />
PAge*Var<br />
Variety Days<br />
Seeding<br />
To<br />
Maturity<br />
ITA 306<br />
IET 3137<br />
ITA 306<br />
IET 3137<br />
ITA 306<br />
IET 3137<br />
Early‐maturing <strong>rice</strong> crops spent less time translocating carbohydrate for<br />
grain <strong>production</strong>. They produce less grain yield than those that reach<br />
maturity later. The 5‐days old seedlings spent the most time in the field after<br />
transplanting thereby utilizing more phyllochrons for tillering. Plant height<br />
was significantly higher with the 5‐day old seedlings. Although there was no<br />
significant difference in tillering between the different seedling age groups,<br />
there was significant difference in panicle count per hill. This is manifested in<br />
the panicle setting ratio (Table 13).<br />
138<br />
134<br />
141<br />
136<br />
162<br />
158<br />
Plant<br />
Ht<br />
(cm)<br />
Table 13. Effect <strong>of</strong> Seedling Age at Transplanting under SRI <strong>Management</strong><br />
84<br />
82<br />
84<br />
73<br />
79<br />
71<br />
6<br />
4.7<br />
0.0101<br />
0.0013<br />
0.1200<br />
Practice, Sapu, The Gambia, 2002<br />
Tiller<br />
per hill<br />
19<br />
22<br />
19<br />
27<br />
20<br />
17<br />
5<br />
14.3<br />
0.0762<br />
0.0804<br />
0.0197<br />
Panicle<br />
per hill<br />
16<br />
16<br />
16<br />
25<br />
15<br />
12<br />
ns<br />
13.0<br />
0.179<br />
ns<br />
ns<br />
96
Change language