Thus, interest in its consumption to benefit health is growing.At the same time, farmers are eager to increase the yields of the crop to meet the increasing market demand and improve their overall returns.

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The contribution to photosynthesis of different leaves in the same plant can differ, and there is a difference among different crops in the contribution by functional leaves [25,26].

The functional leaves play a key role in photosynthesis, dry matter production and yield formation. [27] found that flag leaves of high-yielding rice have high chlorophyll content at the reproductive stage, which is the critical for yield formation [28].

Tartary buckwheat has four main functional leaves during grain filling, and these leaves account for a large proportion of photosynthesis during this period [20].

The photosynthetic capacity of the functional leaves is a key factor determining Tartary buckwheat yield, especially under adverse conditions, such as drought or nutrient deficiency [21,29].

Fayez and Hassanein [30] reported that higher leaf chlorophyll contents and delayed leaf senescence could improve photosynthetic capacity.

Wheat varieties with high yield potentials can be obtained by selecting for delayed leaf senescence [31].To learn more or modify/prevent the use of cookies, see our Cookie Policy and Privacy Policy.Photosynthesis is the basis for plant productivity, and improvement of photosynthetic efficiency is an important way to improve crop yield.The important factors determining the yield of Tartary buckwheat were maintaining higher leaf Chl and SP content and photosynthetic capacity and delaying aging during the grain formation stage.Enhanced rates of photosynthesis and dry matter accumulation led to higher post-anthesis accumulation of biomass with a positive impact on grain number and higher yield.However, the yield of Tartary buckwheat is very low, typically below 1500 kg ha worldwide [2,10].The most limiting factor determining yield is unclear and, therefore, there is a lack of agricultural strategies to improve yield, resulting in low and unstable grain yields with current production.The leaves of all cultivars aged gradually after flowering, and the leaf chlorophyll (Chl) and soluble protein (SP) contents, net photosynthetic rates (P) showed the opposite trend.Cultivars Xi Qiao2 and Qian Ku3 produced more total dry matter (mean 17.1% higher), had higher harvest index (HI, mean 16.4% higher), and yield (mean 29.0% higher) than cvs.By continuing to use this site, you consent to the use of cookies.We use cookies to offer you a better experience, personalize content, tailor advertising, provide social media features, and better understand the use of our services.


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