Aggarwal, P. K. ; Chaturvedi, G. S. ; Singh, A. K. ; Sinha, S. K. (1986) Performance of wheat and triticale cultivars in a variable soil-water environment. III. Source-sink relationships Field Crops Research, 13 . pp. 317-330. ISSN 0378-4290
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/037842...
Related URL: http://dx.doi.org/10.1016/0378-4290(86)90033-X
Abstract
Grain yield was observed to increase with the availability of dry matter (source) and increase in grain number per unit area (GNO) suggesting limitation by source as well as by sink. GNO was not related to the absolute amount of pre-anthesis dry matter (DMa) produced. Increased availability of DMa per grain resulted in decreased GNO. It was concluded that assimilate availability need not always influence GNO. Pre- as well as post-anthesis dry matter was found to be important in determining the number and weight of the grains. Compensation between GNO and grain weight was evident only when the former exceeded 11 000 m-2. The results are discussed in relation to various drought susceptibility groups.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 35377 |
| Deposited On: | 11 Apr 2011 13:04 |
| Last Modified: | 11 Apr 2011 13:04 |
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