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Dergiler / International Journal of Agriculture Environment and Food Sciences / 2018 / Cilt: 2 - Sayı: 4

Correlation and path coefficient analysis for grain yield and its attributing traits of maize inbred lines (Zea mays L.) under heat stress condition

Manoj KANDEL
Surya Kant GHİMİRE
Bishnu Raj OJHA
Jiban SHRESTHA
Sayfa
124–130
Yayın Tarihi
2018-12-20
DOI
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Therefore, selection of genotypes having maximum thousand kernel weight, shellingpercentage, silk receptivity and number of kernel ear-1 and shorter anthesis silking interval, no leaf firing and tassel blast is pre-requisite for attaining improvement in grain yield under heat stress condition.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:Heat stress during the flowering, pollination and grain filling periods affect maize grain yield and its attributing traits.
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Temel Bulgular & Veri:Twenty maize inbred lines were evaluated in alpha lattice design with two replications under heat condition during spring season from February to June, 2016 at Rampur, Chitwan, Nepal.
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Sonuç & Katkı:Therefore, selection of genotypes having maximum thousand kernel weight, shellingpercentage, silk receptivity and number of kernel ear-1 and shorter anthesis silking interval, no leaf firing and tassel blast is pre-requisite for attaining improvement in grain yield under heat stress condition.
🔬Tür:Araştırma Makalesi
📍Kapsam:2016 Verileri
⚙️Değişkenler:Maize (Zea mays L.) · Heat stress · Correlation

Abstract

Heat stress during the flowering, pollination and grain filling periods affect maize grain yield and its attributing traits. Twenty maize inbred lines were evaluated in alpha lattice design with two replications under heat condition during spring season from February to June, 2016 at Rampur, Chitwan, Nepal. Meterological data showed maximum mean temperature (46.2–43.28ºC) and minimum (30.52-30.77ºC) in with relative humidity 37.05 to 49.45% inside the tunnel during in April-May which coincided with the flowering, pollination and grain filling periods. The data were analyzed statistically to study the correlation and path coefficient. The analysis of variance showed that all the lines were significantly different from each other for all traits anthesis silking interval, SPAD chlorophyll and leaf senescence, tassel blast, leaf firing, plant and ear height, leaf area index, ear per plant, cob length and diameter, number of kernel ear-1, number of kernel row-1, number of kernel row, silk receptivity, shelling percentage, thousand kernel weight and grain yield. Grain yield had positive and significant phenotypic correlation with silk receptivity, shelling percentage, cob length and diameter, number of kernel ear-1, number of kernel row-1, number of kernel row, SPAD chlorophyll, thousand kernel weight and significant and negative correlation with tassel blast, anthesis silking interval, leaf area index, leaf firing. Path analysis revealed that of thousand kernel weight, shelling percentage, number of kernel ear-1 and silk receptivity exerted maximum positive direct effect on grain yield. Therefore, selection of genotypes having maximum thousand kernel weight, shellingpercentage, silk receptivity and number of kernel ear-1 and shorter anthesis silking interval, no leaf firing and tassel blast is pre-requisite for attaining improvement in grain yield under heat stress condition.

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Bu Makaleye Atıf Yap

KANDEL, M., GHİMİRE, S. K., OJHA, B. R., SHRESTHA, J. (2018). Correlation and path coefficient analysis for grain yield and its attributing traits of maize inbred lines (Zea mays L.) under heat stress condition. International Journal of Agriculture Environment and Food Sciences, Cilt: 2 - Sayı: 4, 124–130. https://ajindex.com/articles/765372

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Kaynakça (8)

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