Differences in transport of photosynthates between high-and low-yielding Ipomoea batatas L. varieties
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| 024 | 7 | 0 | |a 10.1007/s11099-015-0121-6 |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s11099-015-0121-6 | ||
| 245 | 0 | 0 | |a Differences in transport of photosynthates between high-and low-yielding Ipomoea batatas L. varieties |h [Elektronische Daten] |c [H. Liu, S. Chai, C. Shi, C. Wang, G. Ren, Y. Jiang, C. Si] |
| 520 | 3 | |a Previous studies have focused mainly on the accumulation of photosynthates and less on their distribution in sweet potato (Ipomoea batatas L.). In addition, the effect of photosynthate accumulation in root tubers on photosynthate distribution was not considered. Thus, a field experiment was carried out from May to October (2011 and 2012) to clarify the differences in photosynthate transport between high- and low-yielding sweet potato. This study mainly focused on the photosynthetic capacities of leaves, photosynthate distribution, and characteristics of photosynthate accumulation in root tubers. Results showed the high-yielding varieties displayed the higher fresh root tuber yield and the economic coefficient than the low-yielding varieties. They also showed greater net photosynthetic rate with a pronounced increase at the early and middle growth stages (8.9% and 11.4%, respectively). After the growth peak, the leaf area index (LAI) of the high-yielding varieties decreased with time and was maintained at 2∼3 until harvest, whereas the LAI of the low-yielding varieties decreased slowly. The high-yielding varieties reached the 13C distribution rate ≥ 50% at the early (2011, 2012) and middle (2011) growth stages, whereas the low-yielding varieties reached it at the late (2011) or middle (2012) growth stages. At harvest, the 13C distribution rates in the branches and root tubers of the high-yielding varieties were 6.0-20.3% and 73.7-91.2%, respectively, whereas those of the low-yielding varieties were 29.6-34.7% and 60.7-63.5%, respectively. The high-yielding varieties showed the remarkable initial potential in root tubers, which was much better than that of the low-yielding varieties. The high-yielding varieties also produced heavier root tubers and the higher number of root tubers per plant at the early bulking stage. The root tubers also attained the greater content of soluble sugar and starch. The high-yielding varieties formed root tubers earlier, showed strong abilities to transport photosynthates into the root tubers, and exhibited a higher mean accumulation rate. These varieties could also reduce the photosynthate consumption in branch leaves and stems. Therefore, the high-yielding varieties established growth advantage for the root tubers earlier. It contributed to a reasonable distribution structure of photosynthates that led to the high root tuber yield. Based on our results, effective agricultural measures can be chosen to improve the root tuber yield of sweet potato. | |
| 540 | |a The Institute of Experimental Botany, 2015 | ||
| 690 | 7 | |a 13C distribution rate |2 nationallicence | |
| 690 | 7 | |a photosynthate distribution |2 nationallicence | |
| 690 | 7 | |a sweet potato |2 nationallicence | |
| 690 | 7 | |a tuber roots |2 nationallicence | |
| 690 | 7 | |a yield |2 nationallicence | |
| 690 | 7 | |a C0 : initial potential of root tubers |2 nationallicence | |
| 690 | 7 | |a D : the accumulation duration (about 90% growth increment accumulated) |2 nationallicence | |
| 690 | 7 | |a DAP : days after planting |2 nationallicence | |
| 690 | 7 | |a HY : high-yielding |2 nationallicence | |
| 690 | 7 | |a K : theoretical maximum dry yield of root tubers |2 nationallicence | |
| 690 | 7 | |a LAI : leaf area index |2 nationallicence | |
| 690 | 7 | |a LMA : leaf mass per area |2 nationallicence | |
| 690 | 7 | |a LY : low-yielding |2 nationallicence | |
| 690 | 7 | |a Rmax : maximum accumulation rate |2 nationallicence | |
| 690 | 7 | |a Rmean : mean accumulation rate |2 nationallicence | |
| 690 | 7 | |a T/R value : top/root ratio |2 nationallicence | |
| 690 | 7 | |a Tmax : time of the maximum accumulation rate |2 nationallicence | |
| 700 | 1 | |a Liu |D H. |u Agronomy College, Shandong Agricultural University/State Key Laboratory of Crop Biology, 271018, Tai'an, China |4 aut | |
| 700 | 1 | |a Chai |D S. |u Research Institute of Food Crops, Hubei Academy of Agricultural Sciences, 430064, Wuhan, China |4 aut | |
| 700 | 1 | |a Shi |D C. |u Agronomy College, Shandong Agricultural University/State Key Laboratory of Crop Biology, 271018, Tai'an, China |4 aut | |
| 700 | 1 | |a Wang |D C. |u Agronomy College, Shandong Agricultural University/State Key Laboratory of Crop Biology, 271018, Tai'an, China |4 aut | |
| 700 | 1 | |a Ren |D G. |u Agronomy College, Shandong Agricultural University/State Key Laboratory of Crop Biology, 271018, Tai'an, China |4 aut | |
| 700 | 1 | |a Jiang |D Y. |u Agronomy College, Shandong Agricultural University/State Key Laboratory of Crop Biology, 271018, Tai'an, China |4 aut | |
| 700 | 1 | |a Si |D C. |u Agronomy College, Shandong Agricultural University/State Key Laboratory of Crop Biology, 271018, Tai'an, China |4 aut | |
| 773 | 0 | |t Photosynthetica |d The Institute of Experimental Biology of the Czech Academy of Sciences |g 53/3(2015-09-01), 378-388 |x 0300-3604 |q 53:3<378 |1 2015 |2 53 |o 11099 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s11099-015-0121-6 |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s11099-015-0121-6 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Liu |D H. |u Agronomy College, Shandong Agricultural University/State Key Laboratory of Crop Biology, 271018, Tai'an, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Chai |D S. |u Research Institute of Food Crops, Hubei Academy of Agricultural Sciences, 430064, Wuhan, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Shi |D C. |u Agronomy College, Shandong Agricultural University/State Key Laboratory of Crop Biology, 271018, Tai'an, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Wang |D C. |u Agronomy College, Shandong Agricultural University/State Key Laboratory of Crop Biology, 271018, Tai'an, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Ren |D G. |u Agronomy College, Shandong Agricultural University/State Key Laboratory of Crop Biology, 271018, Tai'an, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Jiang |D Y. |u Agronomy College, Shandong Agricultural University/State Key Laboratory of Crop Biology, 271018, Tai'an, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Si |D C. |u Agronomy College, Shandong Agricultural University/State Key Laboratory of Crop Biology, 271018, Tai'an, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Photosynthetica |d The Institute of Experimental Biology of the Czech Academy of Sciences |g 53/3(2015-09-01), 378-388 |x 0300-3604 |q 53:3<378 |1 2015 |2 53 |o 11099 | ||