EFFECT OF SUMMER PLANTING DATE (SECOND CROPPING) ON YIELD AND YIELD COMPONENTS OF MAIZ HYBRIDS AND DETERMINATION THEIR RELATIONS BY PATH ANALYSIS

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CHOUKAN R.; MOSAVAT A.

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Journal: Seed and Plant Year:2000 | Volume:16 | Issue:1 Page(s): 88-98

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Information Journal Paper

Title

EFFECT OF SUMMER PLANTING DATE (SECOND CROPPING) ON YIELD AND YIELD COMPONENTS OF MAIZ HYBRIDS AND DETERMINATION THEIR RELATIONS BY PATH ANALYSIS

Author(s)

CHOUKAN R. | MOSAVAT A. | Issue Writer Certificate

Keywords

MAIZEQ2

SECOND CROPPINGQ2

PATH ANALYSISQ2

Abstract

Effects of four planting dates on four maiz hybrids (SC604, SC647, TWC648 and SC704) were studied using a randomized complete block design in split plot arrangement in four replications for three years (1995-97) in Gorgan. Each hybrid was planted in 4 rows of 10m long. Two middle rows were used for date recording and assessment. According to the results, the highest grain yield of 7.883 ton/ha abtained from hybrid SC704. Hybrids had not significant interaction with planting dates which means delay in the planting, decreased the grain yield in all hybrids. The average hybrids grain yield decreased from 8.626 t/ha to 5.492 t/ha by delaying the planting date from 22 June to 5 August. The grain yield/ear, seed size and number of kernels/row were minimum in 5 August planting datye. The hihest mean grain yield/car, number of kernels/row and number of kernels/ear belonged to the high yielding hybrid, SC704, but this hybrid produced the lowest number of rows/ear (14.8 rows). There were no significant correlation between grain yield and number of rows/ear, but, the highest and lowest correlation of grain yield were with grain yield/ear (r= 0.58) and number of kernels/car (r= 0.30), respectively. PATH ANALYSIS showed that seed size (p= 0.42) and number of kernels/row (p= 0.27) had the highest and number of kernels/ear (p= 0.03) the lowest direct effects on grain yield.

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APA: Copy

CHOUKAN, R., & MOSAVAT, A.. (2000). EFFECT OF SUMMER PLANTING DATE (SECOND CROPPING) ON YIELD AND YIELD COMPONENTS OF MAIZ HYBRIDS AND DETERMINATION THEIR RELATIONS BY PATH ANALYSIS. SEED AND PLANT, 16(1), 88-98. SID. https://sid.ir/paper/20440/en

Vancouver: Copy

CHOUKAN R., MOSAVAT A.. EFFECT OF SUMMER PLANTING DATE (SECOND CROPPING) ON YIELD AND YIELD COMPONENTS OF MAIZ HYBRIDS AND DETERMINATION THEIR RELATIONS BY PATH ANALYSIS. SEED AND PLANT[Internet]. 2000;16(1):88-98. Available from: https://sid.ir/paper/20440/en

IEEE: Copy

R. CHOUKAN, and A. MOSAVAT, “EFFECT OF SUMMER PLANTING DATE (SECOND CROPPING) ON YIELD AND YIELD COMPONENTS OF MAIZ HYBRIDS AND DETERMINATION THEIR RELATIONS BY PATH ANALYSIS,” SEED AND PLANT, vol. 16, no. 1, pp. 88–98, 2000, [Online]. Available: https://sid.ir/paper/20440/en

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