ปัจจัยในการเจริญเติบโตของพืช
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Q. การที่พืชมีขนาด สี รสชาติแตกต่างกัน เกิดจากอิทธิพลของสิ่งใด
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Q. เนื้อดินละเอียด อุ้มน้ำและธาตุอาหารได้ดี แต่ระบายน้ำและอากาศได้น้อย หมายถึงดินประเภทใด
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Q. ข้อใดไม่ใช่ ความสำคัญของน้ำต่อการเจริญเติบโตของพืช
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เป็นวัตถุดิบสำคัญในกระบวนการหายใจแสง
เป็นวัตถุดิบในกระบวนการสังเคราะห์แสง
Q. เพราะเหตุใดจึงต้องนำเมล็ดพันธุ์พืชเมืองหนาวไปแช่ในช่องแช่แข็งของตู้เย็นก่อนปลูก
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เพื่อเพิ่มความชื้นแก่เมล็ด
เพื่อให้เมล็ดหยุดการพักตัว
เพื่อให้เมล็ดเริ่มการพักตัว
Q. กระบวนการออกดอกของพืชในฤดูหนาว เกิดขึ้นได้อย่างไร
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Inhibitor Growthของการออกดอกถูกสร้าง
Inhibitor Growthของการออกดอกถูกยับยั้ง
Q. ธาตุอาหารใดมีส่วนสำคัญในการสังเคราะห์แสง
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