| Studies on population quality index of super high-yield cotton in Xinjiang |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2011.06.16 |
| Key Words: cotton population quality super high-yield Xinjiang |
| Author Name | Affiliation | | GUO Rensong | Xinjiang Agricultural University/ Research Center of Cotton Engineering of Education Ministry,Urumqi 830052,China | | WEI Hongguo | Xinjiang Agricultural University/ Research Center of Cotton Engineering of Education Ministry,Urumqi 830052,China | | ZHANG Jusong | Xinjiang Agricultural University/ Research Center of Cotton Engineering of Education Ministry,Urumqi 830052,China | | TIAN Liwen | Xinjiang Agricultural University/ Research Center of Cotton Engineering of Education Ministry,Urumqi 830052,China | | LIN Tao | Xinjiang Agricultural University/ Research Center of Cotton Engineering of Education Ministry,Urumqi 830052,China | | ZHAO Qiang | Xinjiang Agricultural University/ Research Center of Cotton Engineering of Education Ministry,Urumqi 830052,China |
|
| Hits: 704 |
| Download times: 489 |
| Abstract: |
| Study was made on population quality indice of super highyield cotton(lint yield over 3 000 kg/hm2)in south Xinjiang in 2008~2009 to exposund the effects of them on yield component factors and to provide theory for large-area planting of super high yield cotton in Xinjiang. The main results were as follows: Compared with high yield and middle-low yield cotton, the increase of plant height and bud fomming of super high yield cotton was fast before flowering stage and the plant height reached 55 cm in flowering stage; in boll forming stage, 2.5~3 boll formned with the increase of each leaf; the LAI grew faster and reach 4.5 in flower peaking stage, and the leaf Pn maintained in a higher level and reached 35 μmol/(m2·s) in the same period, while they decreased more slowly in the begining of boll opening stage，prolonging the leaf functioning period and keeping a larger area for effective photosynthesis in the later stages; the boll load of unit leaf area was significantly higher, reaching 91 bolls/m2. |
|
|
|