Selection criteria for combining high grain yield and high grain protein concentration in bread wheat (Record no. 30715)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02337nab a22002297a 4500 |
| 001 - CONTROL NUMBER | |
| control field | G99318 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20170719155527.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 121211b |||p||p||||||| |z||| | |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | MX-TxCIM |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | McKendry, A.L. |
| 245 00 - TITLE STATEMENT | |
| Title | Selection criteria for combining high grain yield and high grain protein concentration in bread wheat |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Date of publication, distribution, etc. | 1995 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | This study was designed to identify selection criteria for the simultaneous improvement of grain yield and grain protein concentration in spring wheat (Triticum aestivum L.). Eight cultivars were selected. Six expressed contrasting levels of grain protein concentration and grain yield. Two, the cultivars ?UM632? and ?UM684?, expressed high levels of both traits concurrently. Plants in replicated plots were sampled from anthesis to maturity over 2 yr and data were collected on traits related to nitrogen (N) and dry matter accumulation and remobilization. Grain protein concentration was not correlated with grain yield but was correlated with post-anthesis N uptake (r = 0.66**), total plant N at maturity (r = 0.49**), and N harvest index (r = 0.87**), and was inversely correlated with vegetative N at maturity (r = −0.49**). Grain yield was correlated with both post-anthesis N (r = 0.50**) and dry matter uptake (r = 0.58**), with total N (r = 0.78**) and dry matter (r = 0.77**) at maturity, and with harvest index (r = 0.83**). Grain protein yield was highly correlated with post-anthesis N accumulation (r = 0.90**), total N at maturity (r = 0.98**) and the sum of N harvest index and harvest index (r = 0.93**). UM632 and UM684 coupled high post-anthesis N uptake and total N at maturity with high remobilization efficiency and N harvest index, while maintaining harvest index. We concluded that grain protein concentration and grain yield could be improved simultaneously if selection was practiced for threshold levels of grain yield or protein concentration followed by selection for grain protein yield in populations constructed from crosses combining high total N at maturity, N harvest index and harvest index. |
| 546 ## - LANGUAGE NOTE | |
| Language note | English |
| 595 ## - COLLECTION | |
| Collection | Reprints Collection |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Evans, L.E., |
| Relator term | coaut. |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | McVetty, P.B.E., |
| Relator term | coaut. |
| 773 0# - HOST ITEM ENTRY | |
| Title | Crop Science |
| Related parts | v. 35, p. 1597-1602 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Article |
| Date last seen | Total Checkouts | Price effective from | Koha item type | Lost status | Damaged status | Not for loan | Collection code | Withdrawn status | Home library | Current library | Date acquired |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 07/03/2017 | 07/03/2017 | Article | Not Lost | Reprints Collection | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Knowledge Center: John Woolston Library | 07/03/2017 |