Khảo sát chất lượng của cây dã yên thảo (Petunia hydrida) qua các thế hệ cành giâm

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Tác giả: Thị Đan Thi Nguyễn

Ngôn ngữ: Vie

Ký hiệu phân loại: 580.589 Plants

Thông tin xuất bản: Khoa học (Đại học Đồng Tháp) 2022

Mô tả vật lý: 68-73

Bộ sưu tập: Metadata

ID: 394464

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Nghiên cứu này thực hiện với mục tiêu xác định số thế hệ cành giâm có thể sử dụng làm giống đảm bảo sự sinh trưởng phát triển và chất lượng tốt. Nghiên cứu được thực hiện kế thừa sau khi đã hoàn thành thí nghiệm về nồng độ NAA và số thế hệ cành giâm trong giâm cành cây Dã yên thảo, thí nghiệm này cho kết quả khi giâm cành Dã yên thảo với nồng độ NAA 1.500 ppm cho số lượng rễ (59,62 rễ) chiều dài rễ (6,84 cm), tỉ lệ ra rễ (75%) và tỉ lệ xuất vườn (74,1%) cao ở tất cả các thế hệ cành giâm. Thí nghiệm khảo sát chất lượng của cây Dã yên thảo qua các thế hệ cành giâm cho thấy chiều dài lá, chiều rộng lá, độ bền hoa của các thế hệ cành giâm là như nhau và không khác biệt so với cây trồng từ hạt. Số chồi/cây, số lá/cây, đường kính hoa và số hoa trên cây của cây đối chứng và cây của thế hệ 1 và 2 thì cao hơn so với cây trồng của thế hệ 3 và 4, đồng thời thời gian ra hoa của cây Dã yên thảo ở thế hệ 4 sớm hơn so với các thế hệ còn lại. Kết quả thí nghiệm là có thể sử dụng cành giâm cây Dã yên thảo thế hệ 1 và thế hệ 2 làm cây giống cho sản xuất mà vẫn đảm bảo về chất lượng cây và chất lượng hoa Dã yên thảo khi đem trồng., Tóm tắt tiếng anh, This study aims to determine the number generations of cuttings that can be used as seeds while ensuring the growth, development and quality of petunia hydrida. After completing the experiment concentration of NAA and the number of cuttings generations in petunia hydrida, the results when cuttings of petunia hydrida with a concentration of 1,500 ppm NAA gave the number of roots (59.62 roots), root length (6.84 cm), rooting rate (75%) and outplanting rate (74.1%) were high for all cuttings generations. The experiment examining the quality of petunia over cuttings showed that leaf length, leaf width, and flower strength of each generation were the same and not different from seed plants. The number of shoots/plant, the number of leaves/plant, the flower diameter and the number of flowers per tree planted from seeds and plants of 1stand 2ndgenerations are higher than those of the 3rdand 4thgeneration, the flowering time of petunia hydrida plants in 4thgeneration earlier than the rest. Experimental results show that it is possible to use cuttings from 1stgeneration to 2ndgeneration as seedlings for production, while ensuring the quality of plants and petunia hydrida when planting.

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