Application of three methods in water‐saving wheat breeding

Abstract

At present, water shortage seriously affects wheat production in many parts of the world, and to solve this problem, water‐saving wheat breeding is an important research domain. The objective of this study was to evaluate water‐saving index (WSI), yield factors, and KASP (kompetitive allele specific polymerase chain reaction) markers in water‐saving wheat breeding carried out in Hengshui region, China. The result showed as follows: (1) The new index WSI could better indicate the water‐saving performance, including the yield potential and the stability of different wheat cultivars under water limited condition (WL). (2) Referring to the degree of heat stress (D) in that year, selecting one of the three yield factors as the focus will improve the breeding efficiency of water‐saving wheat cultivars. With the increase of the D within a certain range, high water‐saving wheat cultivars showed a high grain weight (GW) under WL. Meanwhile with the decreasing of D value, high water‐saving wheat cultivars showed high spike number under WL. (3) KASP aggregation breeding will significantly improve the efficiency of water‐saving breeding. The combination with the highest effective rate of selecting water‐saving varieties carried GS5‐2334‐SNP and Dreb_SNP favorable alleles, and GW2‐6B‐1709SNP, TaMoc‐2433, and 1fehw with adverse alleles, whereas GS5‐2334‐SNP and GW2‐6B‐1709SNP that related to GW were useful markers for water‐saving breeding. These results improved our knowledge on the usage of WSI, yield factors, and KASP markers on water‐saving wheat breeding.

Introduction: Sustainability as an agroecological strategy toward resilience in agricultural systems

“…Li et al. (2022) evaluated the water‐saving performance of different winter wheat ( Triticum aestivum L.) varieties. Water‐saving index, yield factors, and KASP (kompetitive allele specific polymerase chain reaction) markers were the methods used in water‐saving wheat breeding.…”

“…Chen et al, 2023;Chen & Shen, 2023;C. Guo, Yuan et al, 2023;Li et al, 2022;Liu et al, 2023;Mohammadpur et al, 2023;Qi et al, 2023;Shivashimpar et al, 2023;Yu et al, 2022;Zhang et al, 2023).…”

“…Useful approaches should involve multiple practices, adapt to different sites, and respond to farmers and community requirements. The research articles published in the special section “Agricultural and biological sciences: Plant, soil, animal and environment” address actual topics for agriculture and biology, covering smart technologies, bioinformatics, sensors in agriculture, rhizosphere microbiomes, mycorrhizal fungus and nano potassium fertilizer, IAHP, FCE, soil management, water efficiency, plastic‐film mulching technology, crop breeding, direct seeding, fruit growing management, and multi‐sensor data (C. Chen et al., 2022; X. Chen et al., 2023; Chen & Shen, 2023; C. Guo, Yuan et al., 2023; Li et al., 2022; Liu et al., 2023; Mohammadpur et al., 2023; Qi et al., 2023; Shivashimpar et al., 2023; Yu et al., 2022; Zhang et al., 2023).…”

“…To contribute to this ambitious aim, several international researchers present their novel articles in this special section of Agronomy Journal . The published papers depict a series of current topics on smart technologies, bioinformatics, sensors in agriculture, rhizosphere microbiomes, mycorrhizal fungus and nano potassium fertilizer, improved analytic hierarchy process (IAHP), fuzzy comprehensive evaluation (FCE), soil management, water efficiency, plastic‐film mulching technology, crop breeding, direct seeding, orchard management, and multi‐sensor data for agriculture (C. Chen et al., 2022, 2023; Chen & Shen, 2023; C. Guo, Yuan et al., 2023; Li et al., 2022; Liu et al., 2023; Mohammadpur et al., 2023; Qi et al., 2023; Shivashimpar et al., 2023; Yu et al., 2022; Zhang et al., 2023).…”