Post-Anthesis Mobilization of Stem Assimilates in Wheat under Induced Stress

被引：12

作者：

Nazir, Mian Faisal ^{[1
,2
]}

Sarfraz, Zareen ^{[2
]}

Mangi, Naimatullah ^{[2
]}

Nawaz Shah, Muhammad Kausar ^{[1
]}

Mahmood, Talat ^{[1
]}

Mahmood, Tahir ^{[1
,2
]}

Iqbal, Muhammad Shahid ^{[1
,2
]}

Ishaq Asif Rehmani, Muhammad ^{[3
]}

El-Sharnouby, Mohamed ^{[4
]}

Shabaan, Mohamed Khamees Aly ^{[5
]}

Sorour, Sobhy Gharib Rizk ^{[5
]}

EL Sabagh, Ayman ^{[5
]}

机构：

[1] PMAS Arid Agr Univ, Dept Plant Breeding & Genet, Rawalpindi 46000, Pakistan

[2] Chinese Acad Agr Sci, Inst Cotton Res, State Key Lab Cotton Biol, Anyang 455000, Peoples R China

[3] Ghazi Univ, Dept Agron, Dera Ghazi Khan 32200, Pakistan

[4] Taif Univ, Dept Biotechnol, Coll Sci, At Taif 21944, Saudi Arabia

[5] Kafrelsheikh Univ, Dept Agron, Fac Agr, Kafrelsheikh 33156, Egypt

来源：

SUSTAINABILITY | 2021年 / 13卷 / 11期

关键词：

stem reserves; photosynthetic assimilates; abiotic stress; combining ability; translocation; RESERVE MOBILIZATION; GENOTYPIC VARIATION; GRAIN-YIELD; HYBRIDS; GROWTH; MAIZE; CARBOHYDRATE; SUNFLOWER;

D O I：

10.3390/su13115940

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Stem reserves in grain crops are considered important in grain filling under post-anthesis stress in the absence/low availability of photosynthetic assimilates. Considerable variation is present among genotypes for stem reserve translocation in wheat. Therefore, this study aimed to exploit the phenotypic variation for stem reserve translocation in wheat under control and chemically induced stress conditions. The phenotypic variation among six parents and their corresponding direct cross combinations was evaluated under induced stress conditions. The results signify the presence of considerable variation between treatments, genotypes, and treatment-genotype interactions. The parent LLR-20 depicted the highest translocation of dry matter and contribution of post-anthesis assimilates under induced-stress conditions. Similarly, cross combinations Nacozari x LLR22, Nacozari x LLR 20, Nacozari x Parula, Nacozari x LLR 21, LLR 22 x LLR 21, and LLR 20 x LLR 21 showed higher source-sink accumulation under induced-stress conditions. The selected parents and cross combinations can be further utilized in the breeding program to strengthen the genetic basis for stress tolerance in wheat.

引用

页数：10

共 51 条

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